10-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

_________________________________ 

FORM 10-K

 _________________________________

x ANNUAL REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended March 4, 2017

¨ TRANSITION REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from             to             

Commission File Number: 0-6365

_________________________________ 

APOGEE ENTERPRISES, INC.

(Exact name of registrant as specified in its charter)

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Minnesota	41-0919654
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
4400 West 78th Street – Suite 520, Minneapolis, MN	55435
(Address of principal executive offices)	(Zip Code)

Registrant’s telephone number, including area code: (952) 835-1874

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Name of each exchange on which registered
Common Stock, $0.33 1/3 Par Value	The NASDAQ Stock Market LLC

Securities registered pursuant to Section 12(g) of the Act: None

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Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.

¨  Yes    x  No

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.

¨  Yes    x  No

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    x  Yes    ¨  No

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).     x  Yes    ¨  No

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant's knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. x

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and "emerging growth company" in Rule 12b-2 of the Exchange Act.

Large accelerated filer	x	Accelerated filer	¨
Non-accelerated filer	¨  (Do not check if a smaller reporting company)	Smaller reporting company	¨
Emerging growth company	¨
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.			¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).  ¨  Yes    x  No

As of August 27, 2016, the last business day of the registrant's most recently completed second fiscal quarter, the approximate aggregate market value of voting and non-voting common equity held by non-affiliates of the registrant was $1,386,000,000 (based on the closing price of $47.97 per share as reported on the NASDAQ Stock Market LLC as of that date).

As of April 26, 2017, 28,679,636 shares of the registrant’s common stock, par value $0.33 1/3 per share, were outstanding.

DOCUMENTS INCORPORATED BY REFERENCE

Certain information required in Part III hereof is incorporated by reference to the Proxy Statement for the registrant's 2017 Annual Meeting of Shareholders to be filed with the Securities and Exchange Commission pursuant to Regulation 14A not later than 120 days after the end of the fiscal year covered by this Form 10-K.

APOGEE ENTERPRISES, INC.

Annual Report on Form 10-K

For the fiscal year ended March 4, 2017

TABLE OF CONTENTS

		Page
	PART I
Item 1.	Business	4
	Executive Officers of the Registrant	8
Item 1A.	Risk Factors	9
Item 1B.	Unresolved Staff Comments	11
Item 2.	Properties	11
Item 3.	Legal Proceedings	12
Item 4.	Mine Safety Disclosures	12
	PART II
Item 5.	Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities	12
Item 6.	Selected Financial Data	14
Item 7.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	15
Item 7A.	Quantitative and Qualitative Disclosures About Market Risk	21
Item 8.	Financial Statements and Supplementary Data	22
Item 9.	Changes in and Disagreements with Accountants on Accounting and Financial Disclosure	48
Item 9A.	Controls and Procedures	48
Item 9B.	Other Information	48
	PART III
Item 10.	Directors, Executive Officers and Corporate Governance	48
Item 11.	Executive Compensation	48
Item 12.	Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters	48
Item 13.	Certain Relationships and Related Transactions, and Director Independence	49
Item 14.	Principal Accountant Fees and Services	49
	PART IV
Item 15.	Exhibits and Financial Statement Schedules	49
Item 16.	Form 10-K Summary	52
	Signatures	53

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PART I

ITEM 1. BUSINESS

The Company

Apogee Enterprises, Inc. (Apogee, the Company or we) was incorporated under the laws of the State of Minnesota in 1949. We are a world leader in certain technologies involving the design and development of value-added glass products and services.

Our Company has four reporting segments, with three of the segments serving the commercial construction market:

• The Architectural Glass segment fabricates coated, high-performance glass used globally in customized window and wall systems. For fiscal 2017, the Architectural Glass segment accounted for approximately 33 percent of our net sales.

• The Architectural Framing Systems segment designs, engineers, fabricates and finishes the aluminum frames used in customized window, curtainwall, storefront and entrance systems comprising the outside skin of buildings. For fiscal 2017, the Architectural Framing Systems segment accounted for approximately 35 percent of our net sales.

• The Architectural Services segment provides full-service installation of the walls of glass, windows and other curtainwall products making up the outside skin of buildings. For fiscal 2017, the Architectural Services segment accounted for approximately 24 percent of our net sales.

• The Large-Scale Optical Technologies (LSO) segment manufactures value-added glass and acrylic products for framing and display applications. For fiscal 2017, this segment accounted for approximately 8 percent of our net sales.

On December 14, 2016, we acquired substantially all the assets of Sotawall, Inc. (now operating under the name Sotawall Limited or "Sotawall"), a privately-held designer and fabricator of high-performance, unitized curtainwall systems for commercial construction projects based in the Toronto, Canada area, for approximately $138 million. Sotawall's results of operations have been included in the consolidated financial statements and within the Architectural Framing Systems segment since the date of acquisition.

Strategy

Our overall strategy in the Architectural Glass and Architectural Framing Systems segments is to deliver growth faster than our commercial construction markets. We accomplish this through geographic and market segment expansion and new product offerings, while differentiating ourselves through superior service and lead times. In recent years, we have increased our focus on window and curtainwall retrofit and renovation of existing commercial buildings. We have seen increased interest from the non-residential and high-end multi-family residential building sectors in upgrading façades and improving energy efficiency. We consider this to be a significant opportunity for Apogee in the coming years.

In the Architectural Services segment, our emphasis is on improving margins through focused project selection, while continuing to deliver organic growth in line with our available project management capacity.

Within the LSO segment, our strategy is to grow domestically and internationally by continuing to convert the custom picture framing and fine art markets from clear uncoated glass and acrylic products to value-added products that protect art from UV damage and minimize reflection. Additionally, we have begun to enter new display markets that desire the value-added properties our glass and acrylic products provide in an effort to diversify LSO's product offerings.

We believe each of our segments has the ability to grow organically through entry into new geographies, further penetration in existing geographies and introduction of new products. We also regularly evaluate business development opportunities in adjacent sectors. Any of these strategies can also be executed by acquisition or strategic alliances.

Finally, we are constantly working to improve the efficiency and productivity of our operations by implementing lean manufacturing disciplines and automation. We expect these efforts to continue to deliver gross margin expansion into the foreseeable future.

Products and Services

Architectural Glass, Architectural Framing Systems and Architectural Services segments

These segments participate in various phases of the value chain to design, engineer, fabricate and install customized glass and aluminum window, curtainwall, storefront and entrance systems comprising the outside skin of buildings in the commercial, institutional and high-end multi-family residential construction sectors.

In our Architectural Glass segment, we add ultra-thin, high-performance coatings to uncoated glass to create a variety of aesthetic characteristics, unique designs and energy efficiency, including varying levels of solar energy management, aligned with the industry trend of increasingly energy-efficient buildings. We also laminate layers of glass and vinyl to protect against hurricanes and other severe impacts, and temper, or heat strengthen, glass to provide additional strength. Our high-performance glass is

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custom made-to-order and is typically fabricated into insulating and/or laminated glass units for installation into window, curtainwall, storefront or entrance systems.

Within our Architectural Framing Systems segment, we design and fabricate window, curtainwall, storefront and entrance systems using our customized aluminum and glass, or glass supplied by others. We also provide finishing services for metal components used in windows and curtainwall, as well as plastic components for other products.

By integrating technical capabilities, project management skills and field installation services, our Architectural Services segment provides design, engineering, fabrication and installation expertise for the outside skin of buildings. Our ability to efficiently design high-quality window and curtainwall systems and effectively manage the installation of building façades allows our customers to meet or exceed the timing and cost requirements of their jobs.

Our product and service offerings allow architects to create distinctive looks for office towers, hotels, education facilities and dormitories, health care facilities, government buildings, retail centers and multi-family residential buildings, while meeting functional requirements such as energy efficiency, hurricane, blast and other impact resistance and/or sound control.

LSO segment

The LSO segment provides coated glass and acrylic primarily for use in framing and display applications. Products vary based on size and coatings applied to provide conservation-grade UV protection, anti-reflective and anti-static properties and/or security features.

Product Demand and Distribution Channels

Architectural Glass, Architectural Framing Systems and Architectural Services segments

Demand for the products and services offered by our Architectural segments is affected by changes in the North American commercial construction industries, as well as by changes in general economic conditions. Additionally, the Architectural Glass segment has an operation in Brazil and is, therefore, also impacted by Brazil's commercial construction industry and general economic conditions.

We look at several external indicators to analyze potential demand for our products and services, such as U.S. job growth, office space vacancy rates, credit and interest rates available for commercial construction projects, architectural billing statistics and material costs. We also rely on our own internal indicators to analyze demand. This includes our sales pipeline, made up of contracts in review, projects awarded or committed, and bidding activity. Our sales pipeline, together with ongoing feedback, analysis and data from our customers, architects and building owners, provide visibility into near- and medium-term future demand. Additionally, we evaluate data on U.S. non-residential construction market activity, industry analysis and longer-term trends provided by external data sources.

Our architectural products and services are used in subsets of the construction industry differentiated by building type, level of customization required, customers, geographic location and project size.

Building type - The construction industry is typically segmented into residential construction and non-residential construction, which includes commercial, industrial and institutional construction. Our products and services are primarily used in commercial buildings (office towers, hotels and retail centers) and institutional buildings (education facilities and dormitories, health care facilities and government buildings), as well as in high-end multi-family residential buildings (a subset of residential construction).

Level of customization - The large majority of our projects involve a high degree of customization, as the product or service is based on customer-specified requirements for aesthetics, performance and size, and is designed to satisfy local building codes.

Customers and distribution channels - Our customers are mainly glazing subcontractors and general contractors, with project design being influenced by architects and building owners. Our high-performance architectural glass is primarily sold using a direct sales force and independent sales representatives. Installation services are marketed by a direct sales force in certain metropolitan areas in the U.S. We also have the ability to provide remote project management throughout the U.S. We market our custom and standard windows, curtainwall, storefront and entrance systems using a combination of direct sales forces, independent sales representatives and distributors.

Geographic location - We primarily supply architectural glass products to customers in North America, with some international sales of our high-performance architectural glass. We estimate the U.S. demand for architectural glass fabrication in non-residential buildings is in excess of $1 billion annually. Our aluminum framing systems, including windows, curtainwall, storefront and entrances, are marketed in the U.S. and Canada, and we estimate demand to be in excess of $3 billion annually. In installation

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services, we are one of only a few architectural glass installation companies in the U.S. to have a national presence, and we estimate the U.S. demand to be in the range of $10 to $15 billion.

Project size - Our Architectural Glass segment primarily serves mid-size to monumental high-profile projects. Architectural Framing Systems primarily targets small and mid-size projects, and Architectural Services primarily serves mid-size projects.

LSO segment

In our LSO segment, we have the largest domestically manufactured brand of value-added glass and acrylic used in the custom picture framing market. Under the Tru Vue brand, products are sold primarily in North America through national and regional retail chains using a direct sales force, as well as through local picture framing shops using an independent distribution network. We also supply our glass and acrylic products to museums and public and private galleries and collections worldwide through independent distributors.

Competitive Conditions

Architectural Glass, Architectural Framing Systems and Architectural Services segments

The North American commercial construction market is highly fragmented. Competitive factors include price, product quality, product attributes and performance, reliable service, on-time delivery, lead-time, warranty and the ability to provide technical engineering and design services. To protect and enhance our competitive position, we maintain strong relationships with architects, who influence the selection of products and services on a project, and with general contractors, who initiate projects and develop specifications.

In our Architectural Glass segment, we experience competition from regional glass fabricators who can provide certain products with attributes similar to our products. Within the market sector for large, complex projects, we encounter competition from international companies, which have products that may be equivalent to or have different characteristics than we provide. This international competition has strengthened in recent years due to the relative strength of the U.S. dollar.

The commercial window and storefront manufacturing industry is highly fragmented, and our Architectural Framing Systems segment competes against several national, regional and local aluminum window and storefront manufacturers, as well as regional paint and anodizing companies. When providing installation services, our Architectural Services segment competes against national, regional and local glass installation companies.

LSO segment

Product attributes, price, quality, marketing and service are the primary competitive factors in the LSO segment. Our competitive strengths include our excellent relationships with customers, innovative marketing programs and the performance of our value-added products. We compete with certain European valued-added glass and acrylic products for picture framing.

Warranties

We offer product and service warranties that we believe are competitive for the markets in which our products and services are sold. The nature and extent of these warranties depend upon the product or service, the market and, in some cases, the customer being served. Our standard warranties are generally from two to 10 years for our architectural glass, curtainwall and window system products, while we generally offer warranties of two years or less on our other products and services.

Sources and Availability of Raw Materials

Raw materials used within the Architectural Glass segment include flat glass, vinyl, silicone sealants and lumber. The Architectural Framing Systems segment's materials include aluminum billet and extrusions, fabricated glass, plastic extrusions, hardware, paint and chemicals. Within the Architectural Services segment, materials used include fabricated glass, aluminum extrusions and fabricated metal panels. The LSO segment mainly uses glass and acrylics. A majority of our raw materials are readily available from a variety of domestic and international sources.

Trademarks and Patents

We have several trademarks and trade names that we believe have significant value in the marketing of our products, including APOGEE^®. Trademark registrations in the U.S. are generally for a term of 10 years, renewable every 10 years as long as the trademark is used in the regular course of trade.

Within the Architectural Glass segment, VIRACON^®, DIGITALDISTINCTIONS^®, ROOMSIDE^®, EXTREMEDGE^®, BUILDING DESIGN^®,GLASS IS EVERYTHING^®, CLEARPOINT^®, CYBERSHIELD^® and STORMGUARD^® are registered trademarks. VIRASPAN™ is an unregistered trademark. In addition, GLASSEC^®, INSULATTO^® and BLINDATTO^® are registered trademarks in Brazil. GLASSECVIRACON^™ is an unregistered trademark in Brazil.

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Within the Architectural Framing Systems segment, LINETEC^®, WAUSAU WINDOW AND WALL SYSTEMS^®, TUBELITE^®, ADVANTAGE BY WAUSAU^®, 300ES^®, FINISHER OF CHOICE^®, THERML=BLOCK^®, MAXBLOCK^®, DFG^®, ECOLUMINUM^®, ALUMINATE^®, GET THE POINT!^®, FORCEFRONT^®, SOTAWALL^®, SOTA^® and HYBRID-WALL^® are registered trademarks. CUSTOM WINDOW™, INVENT™, INVENT.PLUS™, INVENT RETRO™, INVISION™, CLEARSTORY™, EPIC™, HERITAGE™, VISULINE™, SEAL™, SUPERWALL™ and CROSSTRAK™ are unregistered trademarks. ALUMICOR™ and BUILDING EXCELLENCE^TM are unregistered trademarks in Canada.

Within the Architectural Services segment, HARMON^®, H DESIGN^®, HARMON GLASS^®, HI-7000^® and INNOVATIVE FAÇADE SOLUTIONS^® are registered trademarks. UCW-8000™, HI-8500™, HI-9000™, SMU-6000™, HPW-250™ and BUILDING TRUST IN EVERYTHING WE DO™ are unregistered trademarks.

Within the LSO segment, TRU VUE^®, CONSERVATION CLEAR^®, CONSERVATION MASTERPIECE ACRYLIC^®, CONSERVATION REFLECTION CONTROL^®, ULTRAVUE^®, MUSEUM GLASS^®, OPTIUM^®, PREMIUM CLEAN^®, REFLECTION CONTROL^®, AR REFLECTION-FREE^®, TRU VUE AR^®, OPTIUM ACRYLIC^®, OPTIUM MUSEUM ACRYLIC^®, CONSERVATION MASTERPIECE^®, STATICSHIELD^®, TRULIFE^® and VISTA AR^® are registered trademarks. TRULIFE INFINITY FRAME^TM, THE DIFFERENCE IS CLEAR^TM and TRU FRAMEABLE MOMENTS^TM are unregistered trademarks.

We have several patents pertaining to our glass coating methods and products, including our UV coating and etch processes for anti-reflective glass for the picture framing industry and fine art market, as well as a patent for an indirect daylighting device and patents for hybrid window wall/curtain wall systems and methods of installation. Despite being a point of differentiation from our competitors, no single patent is considered to be material.

Seasonality

We do not experience a significant seasonal effect in our Architectural segments. However, the construction industry is highly cyclical in nature and can be influenced differently by the effects of local economies.

Within the LSO segment, picture framing glass and acrylic sales tend to increase in the September-to-December timeframe, but the timing of customer promotional activities may offset some of this seasonal impact.

Working Capital Requirements

Trade accounts receivable is the largest component of working capital for the Company, including receivables relating to contractual retention amounts that can be outstanding throughout a project's duration within the Architectural Services segment. Inventory requirements are not significant in any of our segments, although the LSO segment requires greater inventory levels as it builds to stock to meet the demands of its customers.

Backlog

Backlog represents the dollar amount of signed contracts or firm orders, generally as a result of a competitive bidding process, which is expected to be recognized as revenue primarily in the near-term. Backlog is not a term defined under U.S. GAAP and is not a measure of contract profitability. Backlog should not be used as the sole indicator of our future revenue because we have a substantial amount of projects with short lead times that book-and-bill within the same reporting period that are not included in backlog. We have strong visibility beyond backlog as projects awarded, verbal commitments and bidding activities are monitored separately and not included in backlog.

Architectural Glass segment backlog as of year-end was $66.4 million, compared to $62.4 million in the prior year, net of intersegment eliminations. This segment has strategically shortened lead-times, with capability and productivity improvements, in order to serve mid-size projects where there is a higher level of book-and-bill activity within quarters. The backlog is all expected to be filled in fiscal 2018.

Architectural Framing Systems segment backlog has grown to $245.4 million at year-end, compared to $123.0 million at the end of the prior year, due to recent increased order activity, particularly of longer lead-time contracts. The acquisition of Sotawall contributed approximately $70 million to this segment's backlog. Approximately 75 percent of the backlog in this segment is expected to be filled in fiscal 2018, with the remainder expected to be filled in fiscal 2019 and beyond.

Backlog in the Architectural Services segment declined from $320.4 million at the end of the prior year to $255.1 million at March 4, 2017, due to timing of firm orders and signed contracts. Approximately 67 percent of the backlog in this segment is expected to be filled during fiscal 2018, with the remainder expected to be filled in fiscal 2019 and beyond.

Backlog is not a significant metric for the LSO segment, as orders are typically booked and billed within a short time frame.

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Research and Development

The amount spent on research and development activities was $8.6 million, $8.0 million and $6.5 million in fiscal 2017, 2016 and 2015, respectively. Of this amount, $2.2 million, $2.4 million and $2.4 million, respectively, were focused primarily upon design of custom window and curtainwall systems in accordance with customer specifications and are included in cost of sales in the accompanying consolidated financial statements.

Environment

We use hazardous materials in our manufacturing operations, and have air and water emissions that require controls. As a result, we are subject to stringent federal, state and local regulations governing the storage and use of these materials and disposal of wastes. We contract with outside vendors to collect and dispose of waste at our production facilities in compliance with applicable environmental laws. In addition, we have procedures in place that we believe enable us to properly manage the regulated materials used in and wastes created by our manufacturing processes. We believe we are currently in material compliance with such laws and regulations. While we will continue to incur environmental compliance costs for our ongoing manufacturing operations, we do not expect these to be material to our consolidated financial statements.

In fiscal 2008, we acquired one manufacturing facility that had certain historical environmental conditions. We are working to remediate those conditions, and the remediation activities are being conducted without significant disruption to our operations.

Employees

The Company employed 5,511 and 4,614 persons on March 4, 2017 and February 27, 2016, respectively. At March 4, 2017, 624 of these employees were represented by U.S. labor unions.

International Sales

Information regarding export and international sales is included in Item 8, Financial Statements and Supplementary Data, within Note 16 of our Consolidated Financial Statements.

Available Information

The Company maintains a website at www.apog.com. Through a link to a third-party content provider, this corporate website provides free access to the Company's Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K and, if applicable, amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended (the Exchange Act), as soon as reasonably practicable after electronic filing such material with, or furnishing it to, the Securities and Exchange Commission. Also available on our website are various corporate governance documents, including our Code of Business Ethics and Conduct, Corporate Governance Guidelines, and charters for the Audit, Compensation, and Nominating and Corporate Governance Committees of the Board of Directors.

EXECUTIVE OFFICERS OF THE REGISTRANT

Name	Age	Positions with Apogee Enterprises and Employment History
Joseph F. Puishys	58	Chief Executive Officer and President of the Company since 2011. President of Honeywell's Environmental and Combustion Controls division from 2008 through 2011, President of Honeywell's Building Solutions from 2005 through 2008, and President of Honeywell Building Solutions, America from 2004 to 2005.
James S. Porter	56	Chief Financial Officer since 2005 and Executive Vice President since 2015. Vice President of Strategy and Planning from 2002 through 2005. Various management positions within the Company since 1997.
Patricia A. Beithon	63	General Counsel and Secretary since 1999.
Gary R. Johnson	55	Vice President, Treasurer since 2001. Various management positions within the Company since 1995.
John A. Klein	60	Senior Vice President, Operations and Supply Chain Management of the Company since 2012. Director of Operations at Cooper Industries' Power Systems Division from 2008 through 2012, and Vice President of Operations at Rexnord Industries' Bearing Division from 2005 through 2007.

Executive officers are elected annually by the Board of Directors to serve for a one-year period. There are no family relationships between any of the executive officers or directors of the Company.

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ITEM 1A. RISK FACTORS

Our business faces many risks. Any of the risks discussed below, or elsewhere in this Form 10-K or our other filings with the Securities and Exchange Commission, could have a material adverse impact on our business, financial condition or results of operations.

General global economic and business conditions

Our Architectural Glass, Architectural Framing Systems and Architectural Services segments are dependent on global economic conditions and the cyclical nature of the North American commercial construction industry. The commercial construction industry is impacted by global macroeconomic trends that, in turn, affect, among other things, availability of credit, employment levels, consumer confidence, interest rates and commodity prices. To the extent changes in these factors negatively impact the overall commercial construction industry, our revenue and profits could be significantly reduced.

Our Architectural Glass segment's operation located in Brazil is subject to the economic, political and tax conditions prevalent in the country. We cannot predict how changing economic conditions in Brazil will impact our financial results; however, our Brazilian operation makes up less than five percent of our net sales annually.

Our LSO segment depends on the strength of the retail custom picture framing industry. This industry is highly dependent on consumer confidence and the conditions of the U.S. economy. A decline in consumer confidence, whether as a result of an economic slowdown, uncertainty regarding the future or other factors, could result in a decrease in net sales and operating income of this segment.

Foreign currency exchange impacts

Our subsidiaries in Canada and Brazil report their results of operations and financial position in their relevant functional currencies (local country currency), which are then translated into U.S. dollars. This translated financial information is included in our consolidated financial statements. As the relationship between these currencies and the U.S. dollar changes, there could be a negative impact on our reported results and financial position.

In addition, as the U.S. dollar strengthens against foreign currencies, imports of products into the U.S. produced by international competitors have become more price competitive and exports of our U.S.-fabricated products have become less price competitive. If we are not able to counteract these price pressures through superior quality and service, our net sales and operating income could be negatively impacted.

New competitors or specific actions of our existing competitors

All of our operating segments operate in competitive industries where the actions of our existing competitors or new competitors could result in a loss of customers or share of customers' demand. Changes in our competitors' products, prices or services could negatively impact our share of demand, net sales or margins.

Our Architectural Glass and Architectural Framing Systems segments have seen an increase in imports of competitive products into the U.S. from international suppliers due to the relative strength of the U.S. dollar. If imports of competitive products were to occur at increased levels for extended periods of time, our net sales and margins could be negatively impacted.

Our LSO segment competes with several international specialty glass manufacturers that have traditionally been less focused on the U.S. custom picture framing industry. Certain of these competitors have recently developed some value-added products that are able to compete more directly with some products in our existing portfolio. If these competitors are able to successfully increase their product attributes and production capacity and/or increase their sales and marketing focus to the U.S. custom picture framing market, this segment's net sales and margins could be negatively impacted.

Acquisitions and related integration activities

We have completed and may complete additional acquisitions in the future to accelerate the execution of our growth strategies, including new geographies, markets and new product introductions. While we have a disciplined approach to assessing potential acquisition targets, conducting due diligence activities, and negotiating appropriate acquisition terms, there are risks inherent in completing acquisitions, including:

• diversion of management’s attention from existing business activities;

• difficulties or delays in integrating and assimilating information and financial systems, operations, and products of an acquired business or other business venture or in realizing projected efficiencies, growth prospects, cost savings, and synergies;

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• potential loss of key employees and customers of the acquired businesses or adverse effects on relationships with existing customers and suppliers;

• adverse impact on overall profitability if the acquired business does not achieve the return on investment projected at the time of acquisition; and

• inaccurate assessment of additional post-acquisition capital investments, undisclosed, contingent or other liabilities, problems executing backlog of material supply or installation projects underway at time of acquisition, unanticipated costs, and an inability to recover or manage such liabilities and costs.

If one or more of these risks arises in a material manner, our operating results could be negatively impacted.

Effective utilization and management of our manufacturing capacity

Near-term performance depends, to a significant degree, on our ability to provide sufficient available capacity and appropriately utilize existing production capacity. The failure to successfully maintain existing capacity, successfully implement planned capacity expansions, and make additional investments in additional physical capacity could adversely affect our operating results.

Loss of key personnel and inability to source sufficient labor

Our success depends on the skills of the Company's leadership, construction project managers and other key technical personnel, and our ability to secure sufficient manufacturing labor.  Increased activity in residential and commercial construction has caused increased competition for experienced construction project managers.  Additionally, some of our manufacturing facilities are located in regions that at times may experience low levels of unemployment.  If we are unable to retain existing employees and/or recruit and train additional employees with the requisite skills and experience, our operating results could be adversely impacted.

Commodity price fluctuations and supply availability

Our Architectural Framing Systems and Architectural Services segments use aluminum as a significant input to their products. While we structure many of our supply agreements in a way to moderate the effects of fluctuations in the market for raw aluminum, and we are usually eventually able to pass aluminum cost increases on to our customers, short-term operating results could be negatively impacted by sudden price movements in the market for raw aluminum.

Our Architectural Glass segment uses raw glass as a significant input to its products. The supply of raw glass has become tighter due to several years of growth in automotive manufacturing and residential and non-residential construction. Although we have secured supply commitments from multiple suppliers that allow us to reach our near-term growth targets, a significant unplanned downtime at one or more of our key suppliers could negatively impact our operating results.

Product quality issues

We manufacture and/or install a significant portion of our products based on the specific requirements of each customer. We believe that future orders of our products or services will depend on our ability to maintain the performance, reliability and quality standards required by our customers. If our products have performance, reliability or quality problems, or products are installed using incompatible glazing materials or installed improperly (by us or a customer), we may experience: additional warranty expense; reduced or canceled orders; higher manufacturing or installation costs; or delays in the collection of accounts receivable. Additionally, performance, reliability or quality claims from our customers, with or without merit, could result in costly and time-consuming litigation that could require significant time and attention of management and involve significant monetary damages that could negatively impact our financial results.

Project management and installation issues

The Architectural Services segment and, occasionally, a portion of the Architectural Framing Systems segment are awarded fixed-price contracts for installation services. Often, bids are required before all aspects of a construction project are known. An underestimate in the amount of labor required and/or cost of materials for a project; a change in the timing of the delivery of product; system design errors, difficulties or errors in execution; or significant project delays, caused by us or other trades, could result in failure to achieve the expected results. Any one or more of such issues could result in losses on individual contracts that could negatively impact our operating results.

Changes in architectural trends, building codes or consumer preferences

Any change in commercial construction customer preference, architectural trends or building codes that reduce window-to-wall ratios in non-residential construction would negatively impact net sales and operating income in our architectural-related segments. The LSO segment depends on U.S. consumers framing art and other decorative items. Any shift in customer preference away from framed art to other forms of wall decor could negatively impact future net sales and operating income in the LSO segment.

Customer dependence in the LSO segment

The LSO segment is highly dependent on a relatively small number of customers for its sales, and we expect this to continue in the future. Accordingly, loss of a significant customer, a significant reduction in pricing, or a shift to a less favorable mix of value-

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added picture framing glass or acrylic products for one of those customers, could materially reduce LSO net sales and operating results.

Results can differ significantly from our expectations and the expectations of analysts

Our sales and earnings guidance and external analyst estimates are largely based on our view of our business and the broader commercial construction market. Even though we have significant market intelligence through our contact with real estate developers, building owners and architects, and continually monitor micro- and macro-economic indicators of future performance of the commercial construction market, we are unable to precisely predict events that can significantly change market cycles. Failure to meet our guidance or analyst expectations for net sales and earnings would likely have an adverse impact on the market price of our common stock.

Significant risk retention through self-insurance programs

We obtain third-party insurance for potential losses from general liability, employment practices, workers' compensation and automobile liability risk, as well as medical insurance. However, a high amount of risk is retained on a self-insured basis, partially through our wholly-owned insurance subsidiary. Therefore, a material architectural product liability event could have a material adverse effect on our operating results.

Dependence on information technology systems and potential security threats

Our operations are dependent upon various information technology systems that are used to process, transmit and store electronic information, and to manage or support our manufacturing operations and a variety of other business processes and activities. We could encounter difficulties in maintaining our existing systems, and developing and implementing new systems. Such difficulties could lead to disruption in business operations and/or significant additional expenses that could adversely affect our results.

Additionally, information technology security threats are increasing in frequency and sophistication. These threats pose a risk to the security of our systems and networks, and the confidentiality, availability and integrity of our data. Should such an attack succeed, it could lead to the compromise of confidential information, manipulation and destruction of data and product specifications, production downtimes, disruption in the availability of financial data, or misrepresentation of information via digital media. The occurrence of any of these events could adversely affect our reputation and could result in litigation, regulatory action, project delay claims, and increased costs and operational consequences of implementing further data protection systems.

Use of hazardous chemicals and environmental compliance

We use hazardous chemicals in the production process of some of our products. One of our facilities has certain historical environmental conditions that are in the process of being remediated. Our inability to remediate the historical environmental conditions at the facility at or below the amounts reserved could have an adverse impact on future financial results. Additionally, we are subject to a variety of local, state and federal governmental regulations relating to storage, discharge, handling, emission, generation and disposal of toxic or other hazardous substances used to manufacture our products, compliance with which is expensive. Our failure to comply with current or future environmental regulations could result in the imposition of substantial fines, suspension of production, alteration of our manufacturing processes or increased costs.

ITEM 1B. UNRESOLVED STAFF COMMENTS

None.

ITEM 2. PROPERTIES

The following table lists, by segment, the Company's major properties as of March 4, 2017.

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Property Location	Owned/ Leased	Function
Architectural Glass segment
Owatonna, MN	Owned	Manufacturing/Administrative
Owatonna, MN	Leased	Warehouse
Statesboro, GA	Owned	Manufacturing/Warehouse
St. George, UT	Owned	Manufacturing/Warehouse
Nazaré Paulista, Brazil	Owned(1)	Manufacturing/Administrative
Architectural Framing Systems segment
Wausau, WI	Owned	Manufacturing/Administrative
Stratford, WI	Owned	Manufacturing
Reed City, MI	Owned	Manufacturing
Walker, MI	Leased	Manufacturing/Administrative
Dallas, TX	Leased	Manufacturing
Toronto, ON Canada	Leased	Manufacturing/Warehouse/Administrative
Toronto, ON Canada	Owned	Manufacturing
Brampton, ON Canada	Leased	Manufacturing/Warehouse/Administrative
Architectural Services segment
Minneapolis, MN	Leased	Administrative
West Chester, OH	Leased	Manufacturing
Garland, TX	Leased	Manufacturing
Glen Burnie, MD	Leased	Manufacturing
Orlando, FL	Leased	Manufacturing
LSO segment
McCook, IL	Owned	Manufacturing/Warehouse/Administrative
Faribault, MN	Owned	Manufacturing/Administrative
Other
Minneapolis, MN	Leased	Administrative

(1) This is an owned facility; however, the land is leased from the city.

ITEM 3. LEGAL PROCEEDINGS

The Company has been a party to various legal proceedings incidental to its normal operating activities. In particular, like others in the construction supply and services industry, the Company's construction supply and services businesses are routinely involved in various disputes and claims arising out of construction projects, sometimes involving significant monetary damages or product replacement. The Company has also been subject to litigation arising out of general liability, employment practices, workers' compensation and automobile claims. Although it is very difficult to accurately predict the outcome of such proceedings, facts currently available indicate that no such claims will result in losses that would have a material adverse effect on the results of operations, cash flows or financial condition of the Company.

ITEM 4. MINE SAFETY DISCLOSURES

Not applicable.

PART II

ITEM 5. MARKET FOR REGISTRANT'S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES

Market Information

Apogee common stock is traded on the NASDAQ Stock Market LLC (Nasdaq) under the ticker symbol APOG.

As of April 8, 2017, there were 1,197 shareholders of record and 16,162 shareholders for whom securities firms acted as nominees.

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The following chart shows the quarterly range and year-end closing price for one share of the Company's common stock over the past three fiscal years.

	First				Second				Third				Fourth				Year-end
	Low		High		Low		High		Low		High		Low		High		Close
2017	$	39.93	$	45.94	$	41.50	$	48.88	$	39.96	$	49.17	$	47.64	$	59.38	$	58.19
2016	42.35		56.27		49.60		60.16		43.90		57.86		34.52		50.53		39.41
2015	28.28		35.64		29.21		36.68		35.07		47.02		37.83		48.03		45.85

Dividends

Quarterly, the Board of Directors evaluates declaring dividends based on operating results, available funds and the Company's financial condition. Cash dividends have been paid each quarter since 1974. The chart below shows quarterly and annual cumulative cash dividends per share for the past three fiscal years.

	First		Second		Third		Fourth		Total
2017	$	0.1250	$	0.1250	$	0.1250	$	0.1400	$	0.5150
2016	0.1100		0.1100		0.1100		0.1250		0.4550
2015	0.1000		0.1000		0.1000		0.1100		0.4100

Purchases of Equity Securities by the Company

The following table provides information with respect to purchases made by the Company of its own stock during the fourth quarter of fiscal 2017:

Period	Total Number of Shares Purchased (a)	Average Price Paid per Share		Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs (b)	Maximum Number of Shares that May Yet Be Purchased under the Plans or Programs (b)
November 27, 2016 through December 31, 2016	180	$	50.04	—	942,367
January 1, 2017 through January 28, 2017	3,185	55.55		—	942,367
January 29, 2017 through March 4, 2017	1,625	57.98		—	942,367
Total	4,990	$	56.15	—	942,367

(a)The shares in this column represent shares that were surrendered to us by plan participants in order to satisfy stock-for-stock option exercises or withholding tax obligations related to stock-based compensation.

(b) In fiscal 2004, the Board of Directors authorized the repurchase of 1,500,000 shares of Company stock, which was announced on April 10, 2003. Subsequently, the Board of Directors increased the authorization by 750,000 shares, which was announced on January 24, 2008; by 1,000,000 shares, which was announced on October 8, 2008; and by 1,000,000 shares, which was announced on January 13, 2016. The Company's repurchase program does not have an expiration date. No shares were repurchased in the fourth quarter of fiscal 2017.

Comparative Stock Performance

The line graph below compares the cumulative total shareholder return on a $100 investment in our common stock for the last five fiscal years with the cumulative total return on a $100 investment in the Standard & Poor's Small Cap 600 Growth Index and the Russell 2000 Index. The graph assumes an investment at the close of trading on March 3, 2012, and also assumes the reinvestment of all dividends.

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	2012		2013		2014		2015		2016		2017
Apogee	$	100.00	$	212.10	$	280.52	$	379.99	$	329.79	$	492.41
S&P Small Cap 600 Growth Index	100.00		114.19		149.83		160.72		147.48		193.42
Russell 2000 Index	100.00		115.68		151.59		160.12		136.57		186.43

We are not aware of any competitors, public or private, that are similar to us in size and scope of business activities. Most of our direct competitors are either privately owned or divisions of larger, publicly owned companies.

ITEM 6. SELECTED FINANCIAL DATA

The following information should be read in conjunction with Management's Discussion and Analysis of Financial Condition and Results of Operations, included in Item 7 of this Report, and our consolidated financial statements and related notes, included in Item 8 of this Report.

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	Fiscal Year
(In thousands, except per share data and percentages)	2017(1, 2)			2016			2015			2014(3)			2013
Results of Operations Data
Net sales	$	1,114,533		$	981,189		$	933,936		$	771,445		$	700,224
Gross profit	292,023			243,570			208,544			165,252			145,733
Operating income	122,225			97,393			63,585			40,285			27,419
Net earnings	85,790			65,342			50,516			27,986			19,111
Earnings per share - basic	2.98			2.25			1.76			0.98			0.68
Earnings per share - diluted	2.97			2.22			1.72			0.95			0.67
Cash dividends per share	0.515			0.455			0.410			0.370			0.360
Balance Sheet Data
Total assets	784,658			657,440			612,057			569,995			524,779
Long-term debt	65,400			20,400			20,587			20,659			20,756
Shareholders' equity	470,577			406,195			382,476			356,104			336,792
Other Data
Gross profit as a percentage of sales	26.2		%	24.8		%	22.3		%	21.4		%	20.8		%
Operating income as a percentage of sales	11.0		%	9.9		%	6.8		%	5.2		%	3.9		%
Return on average invested capital(4)	14.3		%	12.7		%	8.8		%	6.0		%	4.3		%

⁽¹⁾  Fiscal 2017 included 53 weeks. Each of the other periods presented included 52 weeks.

⁽²⁾  Includes the acquisition of Sotawall in December 2016.

⁽³⁾  Includes the acquisition of Alumicor in November 2013.

⁽⁴⁾  Return on average invested capital is a non-GAAP measure that we define as [operating income x .65]/average invested capital. We believe this measure is useful in understanding operational performance over time. This non-GAAP measure should be viewed in addition to, and not as an alternative to, the reported financial results of the company prepared in accordance with GAAP. Other companies may calculate this measure differently from us, limiting the usefulness of the measure for comparison with others.

ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Forward-Looking Statements

This discussion contains “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. These statements reflect our current views with respect to future events and financial performance. The words “believe,” “expect,” “anticipate,” “intend,” “estimate,” “forecast,” “project,” “should” and similar expressions are intended to identify “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. All forecasts and projections in this document are “forward-looking statements,” and are based on management's current expectations or beliefs of the Company's near-term results, based on current information available pertaining to the Company, including the risk factors noted under Item 1A in this Form 10-K. From time to time, we also may provide oral and written forward-looking statements in other materials we release to the public, such as press releases, presentations to securities analysts or investors, or other communications by the Company. Any or all of our forward-looking statements in this report and in any public statements we make could be materially different from actual results.

Accordingly, we wish to caution investors that any forward-looking statements made by or on behalf of the Company are subject to uncertainties and other factors that could cause actual results to differ materially from such statements. These uncertainties and other risk factors include, but are not limited to, the risks and uncertainties set forth under Item 1A in this Form 10-K.

We wish to caution investors that other factors might in the future prove to be important in affecting the Company's results of operations. New factors emerge from time to time; it is not possible for management to predict all such factors, nor can it assess the impact of each such factor on the business or the extent to which any factor, or a combination of factors, may cause actual results to differ materially from those contained in any forward-looking statements. We undertake no obligation to update publicly or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

Overview

We are a world leader in certain technologies involving the design and development of value-added glass products and services. Our four reporting segments are: Architectural Glass, Architectural Framing Systems, Architectural Services and Large-Scale Optical Technologies (LSO).

Highlights for fiscal 2017:

• Consolidated net sales increased to $1.1 billion, or 14 percent over fiscal 2016.

• Operating income increased to $122 million, or 25 percent over the prior year.

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• Diluted EPS was $2.97, compared to $2.22 in the prior year, for growth of 34 percent.

• We acquired the assets of Sotawall, Inc., a Canadian privately-held designer and fabricator of high-performance, unitized curtainwall systems for commercial construction projects, for approximately $138 million on December 14, 2016. Sotawall's results since the date of acquisition have been included in the consolidated financial statements and within the Architectural Framing Systems segment.

Results of Operations

Net Sales

(Dollars in thousands)	2017		2016		2015		2017 vs. 2016		2016 vs. 2015
Net sales	$	1,114,533	$	981,189	$	933,936	13.6	%	5.1	%

Fiscal 2017 Compared to Fiscal 2016

Net sales in fiscal 2017 increased by 13.6 percent compared to fiscal 2016, due to gains in volume across all three architectural segments. Volume growth was driven by continued strength in non-residential construction end-markets and success in our strategies to expand geographically and introduce new products. The Architectural Framing Systems segment drove nearly 60 percent of our growth this year. The acquisition of Sotawall in the fourth quarter, included in this segment, contributed 13 percent of our overall growth. The Architectural Glass segment drove approximately 22 percent of our growth and the Architectural Services segment contributed nearly all of the remainder. Currency did not have a meaningful impact on our consolidated sales as compared to the prior year.

Fiscal 2016 Compared to Fiscal 2015

Net sales increased by 5.1 percent, or 7.0 percent on a constant currency basis, over fiscal 2015. This was mainly due to pricing and volume growth resulting from strong commercial construction activity in the U.S, partially offset by declines in the commercial construction markets in Brazil and Canada. The Architectural Glass segment accounted for approximately 44 percent of the growth, and the Architectural Services segment drove approximately 32 percent of the growth, with nearly all of the remainder coming from the domestic Architectural Framing segment businesses.

Constant currency revenue excludes the impact of fluctuations in foreign currency on our international operations. Constant currency percentages are calculated by converting prior-period local currency results using the average monthly exchange rate and comparing the adjusted amount to current period reported results. We believe constant currency information provides valuable supplemental information regarding our core operating results, consistent with how we evaluate our performance. We also refer to constant currency measures elsewhere in this report. This non-GAAP measure should be viewed in addition to, and not as an alternative to, the reported results prepared in accordance with U.S. GAAP.

Performance

The relationship between various components of operations, as a percentage of net sales, is provided below.

(Percentage of net sales)	2017		2016		2015
Net sales	100.0	%	100.0	%	100.0	%
Cost of sales	73.8		75.2		77.7
Gross profit	26.2		24.8		22.3
Selling, general and administrative expenses	15.2		14.9		15.5
Operating income	11.0		9.9		6.8
Other income, net	—		—		0.2
Earnings before income taxes	11.0		9.9		7.0
Income tax expense	3.3		3.3		1.6
Net earnings	7.7	%	6.7	%	5.4	%
Effective income tax rate	30.1	%	32.9	%	22.3	%

Fiscal 2017 Compared to Fiscal 2016

Gross profit was 26.2 percent in fiscal 2017, an improvement of 140 basis points from fiscal 2016, driven by operating leverage on increased volume and improved productivity in our three architectural segments.

Selling, general and administrative (SG&A) expense for fiscal 2017 was 15.2 percent, an increase of 30 basis points, or $23.6 million, from fiscal 2016, mainly as a result of increased incentive-related compensation and intangible asset amortization expenses.

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The effective tax rate for fiscal 2017 was 30.1 percent, compared to 32.9 percent in fiscal 2016. The decline of 280 basis points was a result of benefits from various tax planning strategies, including recognition of a foreign tax credit contributing 160 basis points, and increased income in foreign jurisdictions with lower tax rates.

Fiscal 2016 Compared to Fiscal 2015

Gross profit improved 250 basis points from fiscal 2015 to fiscal 2016, primarily due to improved pricing and mix, as well as productivity and volume leverage across all architectural segments.

SG&A expense declined by 60 basis points from 2015 to 2016, but increased $1.2 million, as a result of expense discipline relative to sales growth across our segments.

Our effective tax rate for fiscal 2015 was 22.3 percent, including a $6.4 million tax benefit from an energy-efficient investment credit. Excluding this credit, our effective tax rate would have been 32.2%, compared to 32.9% in fiscal 2016. This increase of 70 basis points was due to changes in state income tax laws, combined with a higher percentage of earnings in the U.S., where the tax rate is higher than in the foreign jurisdictions in which we operate.

Segment Analysis

Architectural Glass

(In thousands)	2017			2016			2015
Net sales	$	411,881		$	377,713		$	346,471
Operating income	44,656			35,504			16,431
Operating margin	10.8		%	9.4		%	4.7		%

Fiscal 2017 Compared to Fiscal 2016. Fiscal 2017 net sales increased $34.2 million, or 9.0 percent, over the prior year. This was primarily due to volume growth and improved pricing and mix in our U.S.-based business, as a result of our focus on growth in the mid-size building sector, as well as the effects of a positive U.S. construction market. Currency did not have a meaningful impact on segment sales as compared to the prior year.

Operating margin improved 140 basis points, driven by leverage on volume growth, pricing, mix and productivity.

Fiscal 2016 Compared to Fiscal 2015. Fiscal 2016 net sales improved 9.0 percent over the prior year, or 12.2 percent on a constant currency basis, primarily due to improved pricing, mix and volume growth in the U.S. as a result of the strong U.S. construction market, partially offset by declines in volume and mix in our Brazilian operation and lower export sales from the U.S.

Operating margin improved 470 basis points, doubling the fiscal 2015 operating margin, with improvement driven by pricing and mix, as well as strong operational performance and volume leverage in the U.S., partially offset by the impact of ongoing challenging Brazilian economic conditions.

Architectural Framing Systems

(In thousands)	2017			2016			2015
Net sales	$	385,978		$	308,593		$	298,395
Operating income	44,768			31,911			21,808
Operating margin	11.6		%	10.3		%	7.3		%

Fiscal 2017 Compared to Fiscal 2016. Net sales improved 25.1 percent, or $77.4 million, over fiscal 2016 due to volume growth across our businesses. Our volume growth resulted from strong U.S. construction market conditions, increased penetration into certain geographies and new product introductions. In addition, Sotawall, acquired in the fourth quarter of fiscal 2017, contributed net sales of $17.8 million in fiscal 2017, or approximately six percentage points of growth. Currency did not have a meaningful impact on segment sales as compared to the prior year.

Operating margin improved 130 basis points over fiscal 2016, driven by leverage on volume growth and productivity.

Fiscal 2016 Compared to Fiscal 2015. Net sales improved 3.4 percent over fiscal 2015, or 6.0 percent on a constant currency basis, on volume growth from strong U.S. construction markets, and improved pricing and mix in our U.S. businesses, partially offset by volume weakness in our Canadian business.

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Operating margin improved 300 basis points over fiscal 2015, driven by improved pricing and mix, lower raw material costs and volume leverage in the U.S., partially offset by the volume weakness in our Canadian business.

Architectural Services

(In thousands)	2017			2016			2015
Net sales	$	270,937		$	245,935		$	230,650
Operating income	18,494			11,687			7,442
Operating margin	6.8		%	4.8		%	3.2		%

Fiscal 2017 Compared to Fiscal 2016. Net sales improved 10.2 percent, or $25.0 million, over the prior year, driven by volume growth due to year-on-year timing of project activity, as we have continued to experience strong commercial construction activity in the U.S. Operating margin improved 200 basis points over the prior year, as a result of leveraging volume growth and continued good execution on projects with better margins.

Fiscal 2016 Compared to Fiscal 2015. Net sales improved 6.6 percent over the prior year, driven by volume growth due to increased commercial construction activity in the U.S. Operating margin improved 160 basis points over the prior year, as a result of continued focus on project selection, improved project margins and good execution.

Large-Scale Optical Technologies (LSO)

(In thousands)	2017			2016			2015
Net sales	$	89,710		$	88,541		$	87,693
Operating income	22,467			22,963			21,954
Operating margin	25.0		%	25.9		%	25.0		%

Fiscal 2017 Compared to Fiscal 2016. Net sales in our LSO segment increased 1.3 percent over the prior year. Operating margin declined 90 basis points over the prior year as a result of increased investments in new market opportunities.

Fiscal 2016 Compared to Fiscal 2015. Net sales in this segment increased 1.0 percent over the prior year as a result of an improved mix of value-added products and stable demand. Operating margin improved 90 basis points over the prior year as a result of improved product mix and strong operational performance.

Liquidity and Capital Resources

(In thousands)	2017			2016			2015
Operating Activities
Net cash provided by operating activities	$	124,001		$	128,943		$	71,799
Investing Activities
Capital expenditures	(68,061		)	(42,037		)	(27,220		)
Net sales (purchases) of marketable securities	32,728			(31,767		)	804
Acquisition of business and intangibles	(137,932		)	—			—
Financing Activities
Borrowings on line of credit, net	44,988			—			—
Repurchase and retirement of common stock	(10,817		)	(24,911		)	(6,894		)
Dividends paid	(14,667		)	(13,184		)	(12,071		)

Operating Activities. Cash provided by operating activities was $124.0 million in fiscal 2017, a decrease of $5.0 million from fiscal 2016. In all years presented, operating cash flows benefited by increased income as compared to the respective prior-year period. In addition, in fiscal 2017, cash from operations was negatively impacted by timing of working capital payments.

Investing Activities. Net cash used in investing activities was $183.8 million in the current year, mainly due to the acquisition of substantially all the assets of Sotawall, Inc. for approximately $138 million. We also made capital expenditures focused primarily on increasing our product capabilities, in particular related to the oversized glass fabrication project. Additional capital investments

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were made to increase our manufacturing productivity across all reporting segments. In fiscal 2016 and 2015, capital investments were primarily focused on increasing manufacturing productivity and capacity.

We estimate fiscal 2018 capital expenditures to be $50 to $60 million, as we continue to invest in capabilities and productivity.

We continue to review our portfolio of businesses and their assets in comparison to our internal strategic and performance objectives. As part of this review, we may acquire other businesses, pursue geographic expansion, take actions to manage capacity and further invest in, fully divest and/or sell parts of our current businesses.

Financing Activities. We paid dividends totaling $14.7 million in fiscal 2017. Additionally, we repurchased 250,001 shares under our authorized share repurchase program during fiscal 2017, for a total cost of $10.8 million. We repurchased 575,000 shares under the program in fiscal 2016 and 203,509 shares under the program during fiscal 2015. We have repurchased a total of 3,307,633 shares, at a total cost of $72.3 million, since the inception of this program during fiscal 2004. We have remaining authority to repurchase 942,367 shares under this program, which has no expiration date.

We maintain a $175.0 million committed revolving credit facility that expires in November 2021 as further described in Note 8 of the Notes to Consolidated Financial Statements. $45.0 million was outstanding under this credit facility as of March 4, 2017, as we used this facility to partially finance the Sotawall acquisition. Nothing was outstanding under this credit facility at the end of either of the two prior years. As defined within this credit facility, we have two financial covenants which require us to stay below a maximum leverage ratio and to maintain a minimum interest expense-to-EBITDA ratio. At March 4, 2017, we were in compliance with both financial covenants.

Other Financing Activities. The following summarizes our significant contractual obligations that impact our liquidity as of March 4, 2017:

	Payments Due by Fiscal Period
(In thousands)	2018		2019		2020		2021		2022		Thereafter		Total
Long-term debt obligations	$	—	$	—	$	—	$	5,400	$	47,000	$	13,000	$	65,400
Operating leases (undiscounted)	11,419		10,796		9,286		6,342		5,605		9,002		52,450
Purchase obligations	106,839		4,693		1,800		1,230		1,230		—		115,792
Total cash obligations	$	118,258	$	15,489	$	11,086	$	12,972	$	53,835	$	22,002	$	233,642

In addition to the committed revolving credit facility discussed above, we also have industrial revenue bond obligations of $20.4 million that mature in fiscal years 2021 through 2043.

From time to time, we acquire the use of certain assets through operating leases, such as warehouses, vehicles, forklifts, office equipment, hardware, software and some manufacturing equipment. Many of these operating leases have termination penalties. However, because the assets are used in the conduct of our business operations, it is unlikely that any significant portion of these operating leases would be terminated prior to the normal expiration of their lease terms. Therefore, we consider the risk related to termination penalties to be minimal.

Purchase obligations in the table above relate to raw material commitments and capital expenditures.

We expect to make contributions of approximately $1.0 million to our defined-benefit pension plans in fiscal 2018, which will equal or exceed our minimum funding requirements.

As of March 4, 2017, we had reserves of $4.0 million and $1.4 million for long-term unrecognized tax benefits and environmental liabilities, respectively. We expect approximately $0.4 million of the unrecognized tax benefits to lapse during the next 12 months. We are unable to reasonably estimate in which future periods the remaining unrecognized tax benefits and environmental liabilities will ultimately be settled.

At March 4, 2017, we had ongoing letters of credit of $23.5 million related to industrial revenue bonds and construction contracts that expire in fiscal 2018 and that reduce availability of funds under our committed credit facility.

In addition to the above standby letters of credit, we are required, in the ordinary course of business, to provide surety or performance bonds that commit payments to our customers for any non-performance by us. At March 4, 2017, $96.2 million of our backlog was bonded by performance bonds with a face value of $343.7 million. Performance bonds do not have stated expiration dates,

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as we are released from the bonds upon completion of the contracts. We have never been required to make any payments related to these performance bonds with respect to any of our current portfolio of businesses.

We had total cash and short-term marketable securities of $20.0 million, and $106.5 million available under our committed revolving credit facility, at March 4, 2017. Due to our ability to generate strong cash from operations and borrowing capability under our committed revolving credit facility, we believe that our sources of liquidity will continue to be adequate to fund our working capital requirements, planned capital expenditures and dividend payments for at least the next 12 months.

Off-balance Sheet Arrangements. With the exception of operating leases, we had no off-balance sheet financing arrangements at March 4, 2017 or February 27, 2016.

Outlook

The following statements are based on our current expectations for fiscal 2018 results. These statements are forward-looking, and actual results may differ materially.

• Revenue growth of approximately 10 percent over fiscal 2017.

• Gross margin of approximately 28 percent and operating margin of approximately 12.5 percent.

• Earnings per diluted share of $3.35 to $3.55.

• Capital expenditures of approximately $50 to $60 million.

Recently Issued Accounting Pronouncements

See Note 1 of the Notes to Consolidated Financial Statements within Item 8 of this Form 10-K for information pertaining to recently issued accounting pronouncements, incorporated herein by reference.

Critical Accounting Policies

Our analysis of operations and financial condition is based on our consolidated financial statements prepared in accordance with U.S. GAAP. Preparation of these consolidated financial statements requires us to make estimates and assumptions affecting the reported amounts of assets and liabilities at the date of the consolidated financial statements, reported amounts of revenues and expenses during the reporting period and related disclosures of contingent assets and liabilities. In developing these estimates and assumptions, a collaborative effort is undertaken involving management across the organization including finance, sales, project management, quality, risk, legal and tax, as well as outside advisors such as consultants, engineers, lawyers and actuaries. Our estimates are evaluated on an ongoing basis and are drawn from historical experience and other assumptions that we believe to be reasonable under the circumstances. Actual results could differ under other assumptions or circumstances.

The following items in our consolidated financial statements require significant estimation or judgment:

Revenue recognition. We recognize revenue when title has transferred, except within our Architectural Services segment and for one business within our Architectural Framing Systems segment, which enter into fixed-price contracts for projects typically performed over a 12- to 24-month timeframe. The contracts clearly specify the enforceable rights of the parties, the consideration and the terms of settlement, and both parties can be expected to satisfy all obligations under the contract. We record revenue for these contracts on a percentage-of-completion basis as we are able to reasonably estimate total contract revenue and total contract costs. We compare the total costs incurred to date to the total estimated costs for the contract, and record that proportion of the total contract revenue in the period. Contract costs include materials, labor and other direct costs related to contract performance. We believe utilizing the cost-to-cost method for revenue recognition provides the greatest degree of accuracy in measuring revenue throughout the contract period. Provisions are established for estimated losses, if any, on uncompleted contracts in the period in which such losses are determined. Amounts representing contract change orders, claims or other items are included in contract revenue only upon customer approval. Recognizing revenue under the percentage-of-completion method of accounting requires significant estimates, including total costs and the percentage complete on the contract, as well as any potential losses or contract overruns. During fiscal 2017, approximately 26 percent of our consolidated sales were recorded on a percentage-of-completion basis.

Goodwill impairment. We evaluate goodwill for impairment annually at our year-end, or more frequently if impairment indicators exist. This year we elected to first perform a qualitative assessment to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount (commonly referred to as “step 0”). If, after assessing all events and circumstances, it is determined that it is not more likely than not that the fair value of a reporting unit is less than its carrying amount, then the two-step goodwill impairment assessment is unnecessary. If we proceed in the goodwill analysis, step 1 of the process compares the fair value of each of our reporting units to carrying value, including goodwill. If the fair value exceeds the carrying value, goodwill impairment is not indicated. Each of our business units represents a reporting unit for the goodwill

20

impairment analysis. Based on our assessment process, we determined that it was not more likely than not that the fair value of any of our reporting units was less than its carrying amount.

When we perform step 1 of the goodwill impairment assessment, we base our determination of fair value on a discounted cash flow methodology that involves significant judgment about projections of future performance. Assumptions about future revenues and expenses, capital expenditures and changes in working capital are based on the annual operating plan and long-term business plan for each business unit. These plans take into consideration numerous factors, including historical experience, anticipated future economic conditions and growth expectations for the industries and end markets in which we participate. Growth rates for revenues and operating profits vary for each reporting unit. The discount rate assumption for each reporting unit takes into consideration our assessment of risks inherent in the future cash flows of our business and an estimated weighted-average cost of capital.

Reserves for disputes and claims regarding product liability and warranties. We are subject to claims associated with our products and services, principally as a result of disputes with our customers involving the performance or aesthetics of our architectural products and services. The time period from when a claim is asserted to when it is resolved, either by dismissal, negotiation, settlement or litigation, can be several years. While we maintain product liability insurance, the insurance policies include significant self-retention of risk in the form of policy deductibles. In addition, certain claims could be determined to be uninsured. We reserve estimated exposures on known claims, as well as on a portion of anticipated claims for product warranty and rework costs based on historical product liability claims as a ratio of sales. Factors that could have an impact on the warranty reserve in any given period include: changes in manufacturing quality, shifts in product mix and any significant changes in sales volume.

ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

We are exposed to ongoing market risk related to changes in interest rates and foreign currency exchange rates.

A rise in interest rates could negatively affect the fair value of our fixed income holdings, while serving to provide greater return on our equity investments. To manage our direct risk from changes in market interest rates, we actively monitor the interest-sensitive components of our balance sheet, primarily available-for-sale securities, fixed income securities and debt obligations, and maintain a diversified portfolio in order to minimize the impact of changes in interest rates on net earnings and cash flow. We do not enter into any financial instruments for trading purposes, and we currently do not use derivative financial instruments to manage interest rate risk. We also diversify and manage our investment portfolio in order to limit impact of potential credit risk.

The primary measure of interest rate risk is the simulation of net income under different interest rate environments. If interest rates were to increase or decrease over the next 12 months by 200 basis points, net earnings would be impacted by approximately $0.1 million. Our debt exceeded investments at March 4, 2017, so as interest rates increase, net earnings decrease; as interest rates decrease, net earnings increase.

In addition to the market risk related to interest rate changes on our financial instruments, the commercial construction markets in which our businesses operate are highly affected by changes in interest rates. Increases in interest rates could adversely impact activity in the commercial construction industry and our operating results.

We are subject to market risk due to changes in the value of foreign currencies in relation to our reporting currency, the U.S. dollar.

We have operations in Canada and Brazil, which primarily transact business in local currencies. We manage these operating activities locally. Revenues, costs, assets and liabilities of these operations are generally denominated in local currencies, thereby mitigating some of the risk associated with changes in foreign exchange rates. However, our consolidated financial results are reported in U.S. dollars. Thus, changes in exchange rates between the Canadian dollar and Brazilian real, on the one hand, and the U.S. dollar, on the other, will impact our results. From time to time, we may enter into insignificant, short-duration, foreign currency contracts, with an original maturity date of less than one year, to hedge foreign currency risk. Sales from our domestic operations are generally denominated in U.S. dollars.

21

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

Management's Annual Report on Internal Control over Financial Reporting

Management of Apogee Enterprises, Inc. and its subsidiaries (the Company) is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined in Rules 13a-15(f) of the Securities Exchange Act of 1934. The Company's internal control over financial reporting is designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. The Company's internal control over financial reporting includes those policies and procedures that (1) pertain to maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the Company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of the financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the Company are being made only in accordance with authorizations of management and directors of the Company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use or disposition of the Company's assets that could have a material effect on the financial statements.

Because of inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of the effectiveness of internal control over financial reporting to future periods are subject to the risk that the controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

The Company's management assessed the effectiveness of the Company's internal control over financial reporting as of March 4, 2017, using criteria set forth by the Committee of Sponsoring Organizations of the Treadway Commission (COSO) in Internal Control—Integrated Framework (2013). The Company's management believes that as of March 4, 2017, the Company's internal control over financial reporting was effective based on those criteria.

Management has excluded from its assessment the internal control over financial reporting at Sotawall, which was acquired on December 14, 2016, and whose financial statements constitute 18 percent of total assets, two percent of revenues and one percent of operating income on the consolidated financial statement amounts as of and for the year ended March 4, 2017.

Following this report are reports from the Company's independent registered public accounting firm, Deloitte & Touche LLP, on the Company's consolidated financial statements and on the effectiveness of the Company's internal control over financial reporting as of March 4, 2017.

22

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Shareholders of

Apogee Enterprises, Inc.

Minneapolis, Minnesota

We have audited the accompanying consolidated balance sheets of Apogee Enterprises, Inc. and subsidiaries (the "Company") as of March 4, 2017 and February 27, 2016, and the related consolidated results of operations, statements of comprehensive earnings, statements of cash flows, and statements of shareholders’ equity for each of the three years in the period ended March 4, 2017. Our audits also included the financial statement schedule listed in the Table of Contents at Item 15. These consolidated financial statements and financial statement schedule are the responsibility of the Company's management. Our responsibility is to express an opinion on these financial statements and financial statement schedule based on our audits.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, such consolidated financial statements present fairly, in all material respects, the financial position of Apogee Enterprises, Inc. and subsidiaries at March 4, 2017 and February 27, 2016, and the results of their operations and their cash flows for each of the three years in the period ended March 4, 2017, in conformity with accounting principles generally accepted in the United States of America. Also, in our opinion, such financial statement schedule, when considered in relation to the basic consolidated financial statements taken as a whole, presents fairly, in all material respects, the information set forth therein.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the Company's internal control over financial reporting as of March 4, 2017, based on the criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission and our report dated April 28, 2017 expressed an unqualified opinion on the Company's internal control over financial reporting.

/s/ Deloitte & Touche LLP

Minneapolis, Minnesota

April 28, 2017

23

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Shareholders of

Apogee Enterprises, Inc.

Minneapolis, Minnesota

We have audited the internal control over financial reporting of Apogee Enterprises, Inc. and subsidiaries (the "Company") as of March 4, 2017, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. As described in Management’s Annual Report on Internal Control over Financial Reporting, management excluded from its assessment the internal control over financial reporting at Sotawall Limited (Sotawall), which was acquired on December 14, 2016, and whose financial statements constitute 18 percent of total assets, two percent of revenues, and one percent of operating income of the consolidated financial statement amounts as of and for the year ended March 4, 2017. Accordingly, our audit did not include the internal control over financial reporting at Sotawall. The Company's management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management’s Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion on the Company's internal control over financial reporting based on our audit.

We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

A company's internal control over financial reporting is a process designed by, or under the supervision of, the company's principal executive and principal financial officers, or persons performing similar functions, and effected by the company's board of directors, management, and other personnel to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company's internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company's assets that could have a material effect on the financial statements.

Because of the inherent limitations of internal control over financial reporting, including the possibility of collusion or improper management override of controls, material misstatements due to error or fraud may not be prevented or detected on a timely basis. Also, projections of any evaluation of the effectiveness of the internal control over financial reporting to future periods are subject to the risk that the controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of March 4, 2017, based on the criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the consolidated financial statements and financial statement schedule listed in the Table of Contents at Item 15 as of and for the year ended March 4, 2017 of the Company and our report dated April 28, 2017 expressed an unqualified opinion on those consolidated financial statements and financial statement schedule.

/s/ Deloitte & Touche LLP

Minneapolis, Minnesota

April 28, 2017

24

CONSOLIDATED BALANCE SHEETS

(In thousands, except per share data)	March 4, 2017			February 27, 2016
Assets
Current assets
Cash and cash equivalents	$	19,463		$	60,470
Short-term available for sale securities	548			30,173
Restricted cash	7,834			—
Receivables, net of allowance for doubtful accounts	185,740			172,832
Inventories	73,409			63,386
Refundable income taxes	1,743			—
Deferred tax assets	—			1,820
Other current assets	8,724			8,112
Total current assets	297,461			336,793
Property, plant and equipment, net	246,748			202,462
Available for sale securities	9,041			12,519
Deferred tax assets	4,025			—
Goodwill	101,334			73,996
Intangible assets	106,686			19,862
Other non-current assets	19,363			11,808
Total assets	$	784,658		$	657,440
Liabilities and Shareholders’ Equity
Current liabilities
Accounts payable	$	63,182		$	64,762
Accrued payroll and related benefits	51,244			39,946
Accrued self-insurance reserves	8,575			7,818
Other current liabilities	34,200			29,339
Billings in excess of costs and earnings on uncompleted contracts	28,857			31,890
Accrued income taxes	—			3,626
Total current liabilities	186,058			177,381
Long-term debt	65,400			20,400
Unrecognized tax benefits	3,980			4,441
Long-term self-insurance reserves	8,831			7,137
Deferred tax liabilities	4,025			4,972
Other non-current liabilities	45,787			36,914
Commitments and contingent liabilities (Note 11)
Shareholders’ equity
Common stock of $0.33-1/3 par value; authorized 50,000,000 shares; issued and outstanding 28,680,841 and 28,683,948 shares, respectively	9,560			9,561
Additional paid-in capital	150,111			145,528
Retained earnings	341,996			282,477
Common stock held in trust	(875		)	(837		)
Deferred compensation obligations	875			837
Accumulated other comprehensive loss	(31,090		)	(31,371		)
Total shareholders’ equity	470,577			406,195
Total liabilities and shareholders’ equity	$	784,658		$	657,440

See accompanying notes to consolidated financial statements.

25

CONSOLIDATED RESULTS OF OPERATIONS

	Year-Ended
	March 4, 2017		February 27, 2016			February 28, 2015
(In thousands, except per share data)	(53 weeks)		(52 weeks)			(52 weeks)
Net sales	$	1,114,533	$	981,189		$	933,936
Cost of sales	822,510		737,619			725,392
Gross profit	292,023		243,570			208,544
Selling, general and administrative expenses	169,798		146,177			144,959
Operating income	122,225		97,393			63,585
Interest income	1,008		981			954
Interest expense	971		593			924
Other income (expense), net	543		(457		)	1,384
Earnings before income taxes	122,805		97,324			64,999
Income tax expense	37,015		31,982			14,483
Net earnings	$	85,790	$	65,342		$	50,516
Earnings per share - basic	$	2.98	$	2.25		$	1.76
Earnings per share - diluted	$	2.97	$	2.22		$	1.72
Weighted average basic shares outstanding	28,781		29,058			28,763
Weighted average diluted shares outstanding	28,893		29,375			29,374

See accompanying notes to consolidated financial statements.

26

CONSOLIDATED STATEMENTS OF COMPREHENSIVE EARNINGS

	Year-Ended
(In thousands)	March 4, 2017			February 27, 2016			February 28, 2015
Net earnings	$	85,790		$	65,342		$	50,516
Other comprehensive earnings (loss):
Unrealized (loss) gain on marketable securities, net of $(45), $38 and $88 of tax (benefit) expense, respectively	(83		)	73			163
Unrealized loss on foreign currency hedge, net of $-, $- and $(36) of tax benefit, respectively	—			—			(62		)
Unrealized gain (loss) on pension obligation, net of $74, $347 and $(830) of tax expense (benefit), respectively	130			610			(1,458		)
Foreign currency translation adjustments	234			(9,734		)	(8,003		)
Other comprehensive earnings (loss)	281			(9,051		)	(9,360		)
Total comprehensive earnings	$	86,071		$	56,291		$	41,156

See accompanying notes to consolidated financial statements.

27

CONSOLIDATED STATEMENTS OF CASH FLOWS

	Year-Ended
	March 4, 2017			February 27, 2016			February 28, 2015
(In thousands)	(53 weeks)			(52 weeks)			(52 weeks)
Operating Activities
Net earnings	$	85,790		$	65,342		$	50,516
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	35,607			31,248			29,423
Share-based compensation	5,986			4,923			4,793
Deferred income taxes	(1,065		)	(6,139		)	4,274
Gain on disposal of assets	(371		)	(198		)	(933		)
Proceeds from new markets tax credit transaction, net of deferred costs	5,109			—			—
Other, net	(2,331		)	1,017			229
Changes in operating assets and liabilities:
Receivables	3,460			(2,918		)	(18,588		)
Inventories	(6,387		)	(2,798		)	(8,660		)
Accounts payable and accrued expenses	17,449			17,265			12,871
Billings in excess of costs and earnings on uncompleted contracts	(9,991		)	9,657			(324		)
Refundable and accrued income taxes	(9,647		)	12,589			(1,091		)
Other, net	392			(1,045		)	(711		)
Net cash provided by operating activities	124,001			128,943			71,799
Investing Activities
Capital expenditures	(68,061		)	(42,037		)	(27,220		)
Purchases of marketable securities	(3,705		)	(35,814		)	(6,142		)
Sales/maturities of marketable securities	36,433			4,047			6,946
Acquisition of business and intangibles	(137,932		)	—			—
Change in restricted cash	(7,834		)	—			—
Other, net	(2,659		)	(4,052		)	1,941
Net cash used in investing activities	(183,758		)	(77,856		)	(24,475		)
Financing Activities
Borrowings on line of credit	121,000			—			—
Payments on line of credit	(76,012		)	—			—
Payments on debt, net	(396		)	(56		)	(139		)
Shares withheld for taxes, net of stock issued to employees	(446		)	(3,254		)	(3,905		)
Repurchase and retirement of common stock	(10,817		)	(24,911		)	(6,894		)
Dividends paid	(14,667		)	(13,184		)	(12,071		)
Net cash provided by (used in) financing activities	18,662			(41,405		)	(23,009		)
(Decrease) increase in cash and cash equivalents	(41,095		)	9,682			24,315
Effect of exchange rates on cash	88			(1,397		)	(595		)
Cash and cash equivalents at beginning of year	60,470			52,185			28,465
Cash and cash equivalents at end of period	$	19,463		$	60,470		$	52,185
Noncash Activity
Capital expenditures in accounts payable	$	3,254		$	2,737		$	2,656

See accompanying notes to consolidated financial statements.

28

Consolidated Statements of Shareholders' Equity

(In thousands, except per share data)	Common Shares Outstanding		Common Stock			Additional Paid-In Capital			Retained Earnings			Common Stock Held in Trust			Deferred Compensation Obligation		Accumulated Other Comprehensive (Loss) Income
Balance at March 1, 2014	28,958		$	9,653		$	130,570		$	228,841		$	(791	)	$	791	$	(12,960	)
Net earnings	—		—			—			50,516			—			—		—
Unrealized gain on marketable securities, net of $88 tax expense	—		—			—			—			—			—		163
Unrealized loss on foreign currency hedge, net of $36 tax benefit	—		—			—			—			—			—		(62		)
Unrealized loss on pension obligation, net of $830 tax benefit	—		—			—			—			—			—		(1,458		)
Foreign currency translation adjustments	—		—			—			—			—			—		(8,003		)
Issuance of stock, net of cancellations	304		101			(47		)	28			(10		)	10		—
Share-based compensation	—		—			4,793			—			—			—		—
Tax benefit associated with stock plans	—		—			3,293			—			—			—		—
Exercise of stock options	146		49			1,190			—			—			—		—
Share repurchases	(203	)	(68		)	(965		)	(5,861		)	—			—		—
Other share retirements	(155	)	(52		)	(259		)	(4,915		)	—			—		—
Cash dividends ($0.41 per share)	—		—			—			(12,071		)	—			—		—
Balance at February 28, 2015	29,050		$	9,683		$	138,575		$	256,538		$	(801	)	$	801	$	(22,320	)
Net earnings	—		—			—			65,342			—			—		—
Unrealized gain on marketable securities, net of $38 tax expense	—		—			—			—			—			—		73
Unrealized gain on pension obligation, net of $347 tax expense	—		—			—			—			—			—		610
Foreign currency translation adjustments	—		—			—			—			—			—		(9,734		)
Issuance of stock, net of cancellations	102		34			114			—			(36		)	36		—
Share-based compensation	—		—			4,923			—			—			—		—
Tax benefit associated with stock plans	—		—			3,856			—			—			—		—
Exercise of stock options	200		67			1,539			—			—			—		—
Share repurchases	(575	)	(192		)	(2,996		)	(21,723		)	—			—		—
Other share retirements	(93	)	(31		)	(483		)	(4,496		)	—			—		—
Cash dividends ($0.455 per share)	—		—			—			(13,184		)	—			—		—
Balance at February 27, 2016	28,684		$	9,561		$	145,528		$	282,477		$	(837	)	$	837	$	(31,371	)
Net earnings	—		—			—			85,790			—			—		—
Unrealized loss on marketable securities, net of $45 tax benefit	—		—			—			—			—			—		(83		)
Unrealized gain on pension obligation, net of $74 tax expense	—		—			—			—			—			—		130
Foreign currency translation adjustments	—		—			—			—			—			—		234
Issuance of stock, net of cancellations	140		47			105			36			(38		)	38		—
Share-based compensation	—		—			5,986			—			—			—		—
Tax deficit associated with stock plans	—		—			(1,745		)	—			—			—		—
Exercise of stock options	163		54			1,893			—			—			—		—
Share repurchases	(250	)	(83		)	(1,357		)	(9,377		)	—			—		—
Other share retirements	(57	)	(19		)	(299		)	(2,263		)	—			—		—
Cash dividends ($0.515 per share)	—		—			—			(14,667		)	—			—		—
Balance at March 4, 2017	28,680		$	9,560		$	150,111		$	341,996		$	(875	)	$	875	$	(31,090	)

See accompanying notes to consolidated financial statements.

29

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1. Summary of Significant Accounting Policies and Related Data

Basis of Consolidation. The consolidated financial statements include the balances of Apogee Enterprises, Inc. and its subsidiaries (Apogee, the Company or we) after elimination of intercompany balances and transactions. We consolidate variable interest entities where it has been determined that the Company is the primary beneficiary of those entities' operations.

Fiscal Year. Our fiscal year ends on the Saturday closest to the last day of February, or as determined by the Board of Directors. Fiscal 2017 consisted of 53 weeks, while 2016 and 2015 each consisted of 52 weeks. Our Brazilian subsidiary follows a calendar year-end and is consolidated on a two-month lag. 

Accounting Estimates. The preparation of the consolidated financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts in the consolidated financial statements and accompanying notes. Actual results could differ significantly from those estimates.

Cash Equivalents. Highly liquid investments with an original maturity of three months or less are included in cash equivalents and are stated at cost, which approximates fair value.

Marketable securities. We hold marketable securities classified as available for sale, and we test for other-than-temporary losses on a quarterly basis or whenever events or changes in circumstances indicate that the carrying amount of a security may not be recoverable. We consider all unrealized losses to be temporary in nature. We intend to hold our securities until the full principal amount can be recovered, and we have the ability to do so based on other sources of liquidity. Gross realized gains and losses are included in other income (expense), net in our consolidated results of operations.

Inventories. Inventories, which consist primarily of purchased glass and aluminum, are valued at lower of cost or market using the first-in, first-out (FIFO) method.

Property, Plant and Equipment. Property, plant and equipment (PP&E) is recorded at cost. Significant improvements and renewals that extend the useful life of the asset are capitalized. Repairs and maintenance are charged to expense as incurred. When an asset is retired or otherwise disposed of, the cost and related accumulated depreciation are removed from the accounts and any related gains or losses are included in selling, general and administrative expenses. Long-lived assets to be held and used, such as PP&E, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable.

Depreciation is computed on a straight-line basis, based on the following estimated useful lives:

	Years
Buildings and improvements	15 to 25
Machinery and equipment	3 to 15
Office equipment and furniture	3 to 10

Goodwill and Intangible Assets. Goodwill represents the excess of the cost over the net tangible and identified intangible assets of acquired businesses. We evaluate goodwill for impairment annually at our year-end, or more frequently if impairment indicators exist. We have eight business units, each of which represents a reporting unit for the goodwill impairment analysis. This year we elected first to perform a qualitative assessment to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount (commonly referred to as “step 0”). For certain of our reporting units, we also completed step 1 of the goodwill assessment process, which compares the fair value of each of our reporting units to carrying value, including goodwill. If the fair value exceeds the carrying value, goodwill impairment is not indicated. In all periods presented, we have followed a consistent discounted cash flow methodology in our step one evaluation of goodwill for impairment. Based on our analysis, we concluded that it was not more likely than not that the fair value of any reporting unit was less than carrying amount.

Intangible assets with defined useful lives are amortized based on estimated useful lives ranging from 18 months to 20 years and are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. Intangible assets with an indefinite useful life are tested for impairment annually at our year-end, or more frequently if events or changes in circumstances indicate that it is more likely than not that the asset is impaired. The estimated useful lives of all intangible assets are reviewed annually, and we have determined that the remaining lives were appropriate.

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Self-Insurance. We obtain commercial insurance for potential losses for general liability, employment practices, workers' compensation, automobile liability, architect's and engineer's errors and omissions risk, product rework and other miscellaneous coverages. A substantial portion of this risk is retained on a self-insured basis through our wholly-owned insurance subsidiary. We establish a reserve for estimated ultimate losses on reported claims and those incurred but not yet reported utilizing actuarial projections. Reserves are classified within accrued or long-term self-insurance reserves based on expectations of when the estimated loss will be paid.

Additionally, we maintain a self-insurance reserve for health insurance programs offered to eligible employees, included within accrued self-insurance reserves. The reserve includes an estimate for losses on reported claims as well as for amounts incurred but not yet reported, based on historical trends.

Warranty. We are subject to claims associated with our products and services, principally as a result of disputes with our customers involving the performance or aesthetics of our architectural products and services. We reserve estimated exposures on known claims, as well as on a portion of anticipated claims for product warranty and rework costs, based on historical product liability claims as a ratio of sales. Our warranty reserves are included in other current and non-current liabilities, based on the estimated timing of dispute resolution.

Environmental Liability. We recognize environmental clean-up liabilities on an undiscounted basis when loss is probable and can be reasonably estimated based on estimates by specialists and applicable law. Such estimates are based primarily on the estimated cost of investigation and remediation required, and the likelihood that, where applicable, other potentially responsible parties will not be able to fulfill their commitments at the sites where the Company may be jointly and severally liable. The reserve for environmental liabilities is included in other current and non-current liabilities in the consolidated balance sheets.

Foreign Currency. The financial statements of subsidiaries located outside of the U.S. are measured in their functional currency, which is local currency. Assets and liabilities of these subsidiaries are translated at the exchange rates at the balance sheet date. Income and expense items are translated using average monthly exchange rates. Translation adjustments are included in accumulated other comprehensive loss in the consolidated balance sheets.

Revenue Recognition. We recognize revenue when title has transferred, except within our Architectural Services segment and for one business within our Architectural Framing Systems segment, which enter into fixed-price contracts for projects typically performed over a 12- to 24-month timeframe. We record revenue for these contracts on a percentage-of-completion basis as we are able to reasonably estimate total contract revenue and total contract costs. We compare the total costs incurred to date to the total estimated costs for the contract, and record that proportion of the total contract revenue in the period. Contract costs include materials, labor and other direct costs related to contract performance. We believe utilizing the cost-to-cost method for revenue recognition provides the greatest degree of accuracy in measuring revenue throughout the contract period. Provisions are established for estimated losses, if any, on uncompleted contracts in the period in which such losses are determined. Amounts representing contract change orders, claims or other items are included in contract revenue only upon customer approval. Approximately 26 percent of our consolidated net sales in fiscal 2017, and 25 percent in each of fiscal 2016 and 2015, were recorded on a percentage-of-completion basis.

Revenue excludes sales taxes as the Company considers itself a pass-through conduit for collecting and remitting sales taxes.

Pricing and Sales Incentives. The Company records estimated reductions to revenue for customer programs and incentive offerings, including pricing arrangements, promotions and other volume-based incentives, at the later of the date revenue is recognized or the incentive is offered. Sales incentives given to customers are recorded as a reduction to net sales unless (1) the Company receives an identifiable benefit for goods or services in exchange for the consideration, and (2) the Company can reasonably estimate the fair value of the benefit received.

Shipping and Handling. All amounts billed to a customer in a sales transaction related to shipping and handling represent revenues earned and are reported as revenue. Costs incurred by the Company for shipping and handling are reported as cost of sales.

Research and Development. Research and development costs are expensed as incurred within selling, general and administrative expenses, and were $8.6 million, $8.0 million and $6.5 million for fiscal 2017, 2016 and 2015, respectively. Of these amounts, $2.2 million, $2.4 million and $2.4 million, respectively, were focused primarily upon design of custom window and curtainwall systems in accordance with customer specifications and are included in cost of sales.

Advertising. Advertising costs are expensed as incurred and were $1.1 million in fiscal 2017, $1.2 million in fiscal 2016, and $1.1 million in fiscal 2015, and they are included in selling, general and administrative expenses.

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Income Taxes. The Company recognizes deferred tax assets and liabilities based upon the future tax consequences of temporary differences between financial statement carrying amounts of assets and liabilities and their respective tax bases. See Note 14 for additional information regarding income taxes.

Subsequent Events. We have evaluated subsequent events for potential recognition and disclosure through the date of this filing and determined that there were no subsequent events that required recognition or disclosure in the consolidated financial statements.

New Accounting Standards.In March 2016, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2016-09, Improvements to Employee Share-Based Payment Accounting, which simplifies several aspects of the accounting and reporting for employee share-based payment transactions. The new standard requires excess tax benefits and tax deficiencies to be recorded in the statements of income as a component of the provision for income taxes when stock awards vest or are settled. In addition, it eliminates the requirement to reclassify cash flows related to excess tax benefits from operating activities to financing activities on the consolidated statements of cash flows. We elected to early adopt the new guidance in the fourth quarter of fiscal 2017, with the following impacts to our consolidated financial statements:

• Differences between the accounting expense and the tax deduction for share-based compensation (excess tax benefits or deficits) are now recognized in the income statement within income taxes upon vesting or settlement of the award and are treated as discrete tax items impacting our effective tax rate in the period of settlement. Previously, these differences were recognized within additional paid-in capital. Net tax benefits related to share-based compensation awards of $0.9 million for the year were recognized in the fourth quarter as a reduction of income tax expense in the consolidated statements of operations. The impact of this change to prior interim reporting periods in fiscal 2017 was not material.

• The excess tax benefits from share-based compensation are included within the income taxes line as part of operating activities in the statement of cash flows, and are no longer included as a financing activity. This change is applied retrospectively.

The standard allows for an accounting policy election to continue to account for forfeitures as an estimate or to account for forfeitures as they occur. We elect to recognize forfeitures of any share-based awards as they occur.

In November 2015, the FASB issued ASU 2015-17, Balance Sheet Classification of Deferred Taxes, which requires all deferred tax assets and liabilities, along with any related valuation allowance, to be classified as noncurrent on the balance sheet. We early adopted this standard in the first quarter of the current fiscal year, and prior periods were not retrospectively adjusted. The adoption of this standard did not have a significant impact to our consolidated financial statements in any period presented.

In January 2017, the FASB issued ASU 2017-04, Simplifying the Test for Goodwill Impairment, which simplifies the accounting for goodwill impairment by requiring impairment charges to be based on the first step in the current two-step impairment test process. The new guidance eliminates the current requirement to calculate a goodwill impairment charge using step 2. The standard is applicable to impairment tests performed in periods beginning after December 15, 2019, with early adoption permitted. We are currently evaluating early adoption of this guidance for our future annual goodwill impairment review process.

In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows, and in November 2016, it issued 2016-18, Restricted Cash. Both standards provide guidance for presentation of certain topics within the statement of cash flows, including presenting restricted cash within cash and cash equivalents, and are intended to improve consistency in presentation. The new classification guidance is effective for fiscal years beginning after December 15, 2017, our fiscal year 2019, and is to be applied retrospectively for comparability across all periods. These standards may be adopted early, and we are considering the timing of adoption but we do not expect this guidance to have a significant impact on our consolidated financial statements.

In February 2016, the FASB issued ASU 2016-02, Leases, which provides for a comprehensive change to lease accounting. The new standard requires that a lessee recognize a lease obligation liability and a right to use asset for virtually all leases of property, plant and equipment, subsequently amortized over the lease term. The new standard is effective for fiscal years beginning after December 15, 2018, with a modified retrospective transition. We are currently evaluating whether we will early adopt this standard in our fiscal year 2019 to align with the adoption of the new revenue recognition standard discussed below. The adoption of this standard will result in reflecting assets and liabilities for the value of our leased property and equipment on our consolidated balance sheet but it is not expected to have a significant impact on our consolidated results of operations.

In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers, which outlines a single comprehensive model to use in accounting for revenue arising from contracts with customers and supersedes most current revenue recognition guidance. Under the new standard, an entity recognizes revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. This

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guidance is effective for annual reporting periods beginning after December 15, 2017, our fiscal 2019. We are in the process of fully evaluating the impact this standard will have on our financial statements. However, at this time we have determined the following:

• The standard allows a full retrospective or modified retrospective transition method. We plan to adopt the new guidance following the full retrospective method.

• We expect to have business units that will continue to recognize revenue at the point in time when goods are shipped, as that represents when control is transferred, and business units that will continue to recognize revenue over time, following a cost-to-cost percentage of completion method of revenue recognition. Additionally, we expect that one of our business units in the Architectural Framing Systems segment will change from recognizing revenue at a point in time to recognizing revenue over time to better reflect transfer of control to the customer in line with the new guidance. This business unit will follow a similar cost-to-cost percentage of completion method of revenue recognition, consistent with our other business units using percentage of completion.

• In the coming months, we will undertake a process to quantify the impact of the new accounting guidance on each of the relevant fiscal years and will provide further analysis and discussion as we progress in the evaluation process.

2.    Acquisition

On December 14, 2016, we acquired substantially all the assets of Sotawall, Inc. (now operating under the name Sotawall Limited or "Sotawall") a privately-held company based in the Toronto, Canada area, for approximately $138 million, funded by existing cash and short-term investments of approximately $73 million and by approximately $65 million from our committed revolving line of credit. Sotawall specializes in the design, engineering, fabrication, assembly and installation of unitized curtainwall systems for industrial, commercial and institutional buildings, primarily serving the Canadian and northeastern U.S. geographic regions. Sotawall's results of operations have been included in the consolidated financial statements and within the Architectural Framing Systems segment since the date of acquisition. Those results include $17.8 million of sales, $0.7 million of operating income and de minimis net earnings.

The assets and liabilities of Sotawall were recorded in the consolidated balance sheet and within the Architectural Framing Systems segment as of the acquisition date, at their respective fair values. Fair value is estimated based on one or a combination of income, cost and/or market approaches, as determined based on the nature of the asset or liability, and the level of inputs available. With respect to assets and liabilities, the determination of fair value requires management to make subjective judgments as to projections of future operating performance, the appropriate discount rate to apply, long-term growth rates, etc. (i.e. - unobservable inputs classified as Level 3 inputs under the fair value hierarchy described in Note 5) which affect the amounts recorded in the purchase price allocation. The excess of the consideration transferred over the fair value of the identifiable assets, net of liabilities, is recorded as goodwill, which is indicative of the expected continued growth and development of Sotawall. The purchase price allocation is based on these estimated fair value of assets acquired and liabilities assumed, as follows:

(In thousands)	December 14, 2016
Net working capital	$	10,682
Property, plant and equipment	7,993
Goodwill	27,444
Other intangible assets	91,813
Net assets acquired	$	137,932

Other intangible assets reflect the following:

(In thousands)	Estimated fair value		Estimated useful life (in years)
Technology	$	6,319	10.0
Tradename	12,333		Indefinite
Backlog	12,638		1.5
Customer relationships	60,523		17.0
Total other intangible assets	$	91,813

These fair values are based on preliminary estimates and are subject to change based on finalization of net working capital values, intangible asset valuation and other purchase price adjustments expected to be completed in the first quarter of fiscal 2018. Up to 75 percent of the goodwill is tax deductible. Refer to Note 7 for more information on goodwill and intangible assets.

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The following unaudited pro forma information provides the results of operations for the fiscal years ended March 4, 2017 and February 27, 2016, as if the acquisition had been completed at the beginning of fiscal year 2016:

	Pro Forma
(In thousands, except per share data)	2017		2016
Net sales	$	1,196,504	$	1,054,281
Net earnings	100,124		66,203
Earnings per share
Basic	$	3.48	$	2.28
Diluted	$	3.47	$	2.25

Unaudited pro forma information has been provided for comparative purposes only and the information does not necessarily reflect what the combined company's results of operations would have been had the acquisition occurred at the beginning of fiscal year 2016. It also may not be useful in predicting the future results of operations of the combined company. The pro forma information includes the impact of intangible asset amortization of approximately $12.7 million in 2016 and $8.2 million in 2017 (based on historical average exchange rates), which is expected to be recognized in Apogee's results for fiscal 2018 and fiscal 2019, respectively. The information also reflects the pro forma cost of required debt financing but does not reflect the effect of any synergies or integration costs that may result from the acquisition.

3. Working Capital

Receivables

(In thousands)	2017			2016
Trade accounts	$	122,149		$	102,627
Construction contracts	31,923			41,631
Contract retainage	29,191			28,249
Other receivables	3,972			2,822
Total receivables	187,235			175,329
Less allowance for doubtful accounts	(1,495		)	(2,497		)
Net receivables	$	185,740		$	172,832

Inventories

(In thousands)	2017		2016
Raw materials	$	22,761	$	21,404
Work-in-process	16,154		9,958
Finished goods	29,372		25,486
Costs and earnings in excess of billings on uncompleted contracts	5,122		6,538
Total inventories	$	73,409	$	63,386

Other Current Liabilities

(In thousands)	2017		2016
Warranties	$	21,100	$	14,666
Taxes, other than income taxes	4,452		5,058
Other	8,648		9,615
Total other current liabilities	$	34,200	$	29,339

4. Marketable Securities

We hold the following marketable securities, all classified as available for sale:

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(In thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
March 4, 2017
Municipal bonds	$	9,595	$	91	$	(97	)	$	9,589
Total marketable securities	$	9,595	$	91	$	(97	)	$	9,589
February 27, 2016
Mutual fund	$	30,178	$	—	$	(55	)	$	30,123
Municipal bonds	12,393		285		(109		)	12,569
Total marketable securities	$	42,571	$	285	$	(164	)	$	42,692

In the prior year, we were invested in a mutual fund holding short-term government securities as a means of deploying excess cash from operations while preserving liquidity. We sold this security in fiscal 2017 to partially finance the Sotawall acquisition.

We have a wholly-owned insurance subsidiary, Prism Assurance, Ltd. (Prism), which holds our municipal bonds. Prism insures a portion of our general liability, workers' compensation and automobile liability risks using reinsurance agreements to meet statutory requirements. The reinsurance carrier requires Prism to maintain fixed-maturity investments, which are generally high-quality municipal bonds, for the purpose of providing collateral for Prism's obligations under the reinsurance agreement.

The following table presents the length of time that our securities were in continuous unrealized loss positions, but were not deemed to be other than temporarily impaired, as of March 4, 2017:

	Less Than 12 Months					Greater Than or Equal  to 12 Months					Total
(In thousands)	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
Municipal bonds	$	1,413	$	(14	)	$	1,167	$	(83	)	$	2,580	$	(97	)

The amortized cost and estimated fair values of our municipal bonds at March 4, 2017, by contractual maturity, are shown below. Expected maturities may differ from contractual maturities, as borrowers may have the right to call or prepay obligations with or without penalty. Gross realized gains and losses were insignificant for all periods presented.

(In thousands)	Amortized Cost		Estimated Market Value
Due within one year	$	548	$	548
Due after one year through five years	3,003		3,028
Due after five years through 10 years	4,553		4,605
Due after 10 years through 15 years	1,491		1,408
Total	$	9,595	$	9,589

5. Fair Value Measurements

Financial assets and liabilities are classified in the fair value hierarchy based on the lowest level input that is significant to the fair value measurement: Level 1 (unadjusted quoted prices in active markets for identical assets or liabilities); Level 2 (observable market inputs, other than quoted prices included in Level 1); and Level 3 (unobservable inputs that cannot be corroborated by observable market data). We do not have any Level 3 assets or liabilities.

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Financial assets and liabilities measured at fair value on a recurring basis were:

(In thousands)	Quoted Prices in Active Markets (Level 1)		Other Observable Inputs (Level 2)		Total Fair Value
March 4, 2017
Cash equivalents
Money market funds	$	4,423	$	—	$	4,423
Commercial paper	—		5,500		5,500
Total cash equivalents	4,423		5,500		9,923
Short-term securities
Municipal bonds	—		548		548
Long-term securities
Municipal bonds	—		$	9,041	9,041
Total assets at fair value	$	4,423	$	15,089	$	19,512
February 27, 2016
Cash equivalents
Money market funds	$	23,199	$	—	$	23,199
Commercial paper	—		29,774		29,774
Total cash equivalents	23,199		29,774		52,973
Short-term securities
Mutual fund	30,123		—		30,123
Municipal bonds	—		50		50
Total short-term securities	30,123		50		30,173
Long-term securities
Municipal bonds	—		12,519		12,519
Total assets at fair value	$	53,322	$	42,343	$	95,665

Cash equivalents

Fair value of money market funds was determined based on quoted prices for identical assets in active markets. Commercial paper was measured at fair value using inputs based on quoted prices for similar securities in active markets.

Short- and long-term securities

Municipal bonds were measured at fair value based on market prices from recent trades of similar securities and are classified as short-term or long-term based on maturity date. Mutual funds were measured at fair value based on quoted prices for identical assets in active markets.

6. Property, Plant and Equipment

(In thousands)	2017			2016
Land	$	8,400		$	8,827
Buildings and improvements	162,184			149,685
Machinery and equipment	316,406			296,388
Office equipment and furniture	49,720			48,805
Construction in progress	46,544			18,384
Total property, plant and equipment	583,254			522,089
Less accumulated depreciation	(336,506		)	(319,627		)
Net property, plant and equipment	$	246,748		$	202,462

Depreciation expense was $31.6 million, $29.8 million and $27.5 million in fiscal 2017, 2016 and 2015, respectively.

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7. Goodwill and Other Intangible Assets

The carrying amount of goodwill attributable to each reporting segment was:

(In thousands)	Architectural Glass			Architectural Services		Architectural Framing Systems			Large-Scale Optical		Total
Balance at February 28, 2015	$	26,355		$	1,120	$	37,825		$	10,557	$	75,857
Foreign currency translation	(716		)	—		(1,145		)	—		(1,861		)
Balance at February 27, 2016	25,639			1,120		36,680			10,557		73,996
Goodwill acquired	—			—		27,444			—		27,444
Foreign currency translation	317			—		(423		)	—		(106		)
Balance at March 4, 2017	$	25,956		$	1,120	$	63,701		$	10,557	$	101,334

No goodwill impairment has been recorded in any period presented.

The gross carrying amount of other intangible assets and related accumulated amortization was:

(In thousands)	Gross Carrying Amount		Accumulated Amortization			Foreign Currency Translation			Net
March 4, 2017
Definite-lived intangible assets
Debt issue costs	$	4,066	$	(2,960	)	$	—		$	1,106
Non-compete agreements	6,286		(6,025		)	(65		)	196
Customer relationships	82,479		(14,013		)	(145		)	68,321
Trademarks and other intangibles	25,950		(4,917		)	(31		)	21,002
Total definite-lived intangible assets	118,781		(27,915		)	(241		)	90,625
Indefinite-lived intangible assets
Trademarks	16,022		—			39			16,061
Total intangible assets	$	134,803	$	(27,915	)	$	(202	)	$	106,686
February 27, 2016
Definite-lived intangible assets
Debt issue costs	$	3,677	$	(2,758	)	$	—		$	919
Non-compete agreements	6,673		(6,419		)	(16		)	238
Customer relationships	24,174		(12,737		)	(1,162		)	10,275
Trademarks and other intangibles	8,213		(3,271		)	(431		)	4,511
Total definite-lived intangible assets	42,737		(25,185		)	(1,609		)	15,943
Indefinite-lived intangible assets
Trademarks	4,239		—			(320		)	3,919
Total intangible assets	$	46,976	$	(25,185	)	$	(1,929	)	$	19,862

Amortization expense on definite-lived intangible assets was $4.0 million, $1.6 million and $2.1 million in fiscal 2017, 2016 and 2015, respectively. The amortization expense associated with the debt issue costs is included in interest expense while the remainder is in selling, general and administrative expenses in the consolidated results of operations. Estimated future amortization expense for definite-lived intangible assets is as follows:

(In thousands)	2018		2019		2020		2021		2022
Estimated amortization expense	$	14,157	$	7,918	$	5,592	$	5,479	$	5,372

8. Debt

In December 2016, we amended and restated the credit agreement governing our credit facility to, among other changes, increase the amount of the revolving credit facility to $175.0 million, extend the maturity date to November 2021 and to modify the financial covenants under the credit agreement. We had $45.0 million outstanding on our revolving credit facility as of March 4, 2017 and

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no borrowings outstanding as of February 27, 2016. As defined within our facility, we have two financial covenants that require us to stay below a maximum debt-to-EBITDA ratio and maintain a minimum ratio of interest expense-to-EBITDA. Both ratios are computed quarterly, with EBITDA calculated on a rolling four-quarter basis. If the Company is not in compliance with either of these covenants, our credit facility may be terminated and/or any amounts then outstanding may be declared immediately due and payable. At March 4, 2017, we were in compliance with both financial covenants. We have the ability to issue letters of credit of up to $70.0 million under this credit facility, the outstanding amounts of which decrease the available commitment. At March 4, 2017, $106.5 million was available under this credit facility.

Debt at March 4, 2017 also included $20.4 million of industrial revenue bonds that mature in fiscal years 2021 through 2043. The fair value of the industrial revenue bonds approximated carrying value at March 4, 2017, due to the variable interest rates on these instruments. The bonds would be classified as Level 2 within the fair value hierarchy described in Note 5.

We also maintain a $4.0 million Canadian dollar revolving demand facility. No borrowings were outstanding under the facility as of March 4, 2017 or February 27, 2016. Borrowings under the facility are made available at the sole discretion of the lender and are payable on demand, with interest at rates specified in the credit agreement for the demand facility.

Debt maturities and other selected information follows:

(In thousands)	2018	2019	2020	2021	2022	Thereafter	Total
Maturities	$—	$—	$—	$5,400	$47,000	$13,000	$	65,400

(In thousands, except percentages)	2017			2016
Average daily borrowings during the year	$	34,320		$	21,730
Maximum borrowings outstanding during the year	91,400			22,480
Weighted average interest rate during the year	2.22		%	0.29		%

(In thousands)	2017		2016		2015
Interest on debt	$	971	$	544	$	581
Other interest expense	—		49		343
Interest expense	$	971	$	593	$	924

Interest payments were $0.8 million in fiscal 2017, $0.5 million in fiscal 2016 and $0.8 million in fiscal 2015.

9. Other Non-Current Liabilities

(In thousands)	2017		2016
Deferred benefit from New Markets Tax Credit transactions	$	16,708	$	10,741
Retirement plan obligations	9,635		9,992
Deferred compensation plan	7,463		4,814
Other	11,981		11,367
Total other non-current liabilities	$	45,787	$	36,914

10. Employee Benefit Plans

401(k) Retirement Plan

The Company sponsors a single 401(k) retirement plan covering substantially all full-time, non-union employees, as well as union employees at two of its manufacturing facilities. Under the plan, employees are allowed to contribute up to 60 percent of eligible earnings to the plan, up to statutory limits. The Company contributes a match of 100 percent of the first one percent contributed and 50 percent of the next five percent contributed on eligible compensation that non-union employees contribute and according to contract terms for union employees. The Company match was $6.2 million in fiscal 2017, $5.4 million in fiscal 2016 and $4.7 million in fiscal 2015.

Deferred Compensation Plan

The Company maintains a plan that allows participants to defer compensation. The deferred compensation liability was $7.7 million and $5.0 million at March 4, 2017 and February 27, 2016, respectively. The Company has investments in corporate-owned life insurance policies (COLI) of $7.7 million and money market funds (classified as cash equivalents) of $0.3 million with the

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intention of utilizing them as long-term funding sources for this plan. The COLI assets are recorded at their net cash surrender values and are included in other non-current assets in the consolidated balance sheet.

Plans under Collective Bargaining Agreements

We contribute to various multi-employer union retirement plans, which provide retirement benefits to the majority of our union employees; none of the plans are considered significant. The total contribution to these plans in fiscal 2017, 2016 and 2015 was $3.9 million, $3.6 million and $4.3 million, respectively.

Pension Plan

The Company sponsors the Tubelite Inc. Hourly Employees' Pension Plan (Tubelite Plan), a defined-benefit pension plan that was frozen to new entrants in fiscal 2004, with no additional benefits accruing to plan participants after such time.

Officers' Supplemental Executive Retirement Plan (SERP)

The Company sponsors an unfunded SERP for the benefit of certain executives, a defined-benefit pension plan that was frozen to new entrants in fiscal 2009, with no additional benefits accruing to plan participants after such time.

Obligations and Funded Status of Defined-Benefit Pension Plans

The following tables present reconciliations of the benefit obligation of the defined-benefit pension plans and the funded status of the defined-benefit pension plans. The Tubelite plan uses a measurement date as of the calendar month-end closest to our fiscal year-end, while the SERP uses a measurement date aligned with our fiscal year-end.

(In thousands)	2017			2016
Change in projected benefit obligation
Benefit obligation beginning of period	$	14,900		$	16,253
Interest cost	555			566
Actuarial loss (gain)	54			(907		)
Benefits paid	(1,017		)	(1,012		)
Benefit obligation at measurement date	14,492			14,900
Change in plan assets
Fair value of plan assets beginning of period	$	4,261		$	4,419
Actual return on plan assets	73			(62		)
Company contributions	868			916
Benefits paid	(1,017		)	(1,012		)
Fair value of plan assets at measurement date	4,185			4,261
Underfunded status	$	(10,307	)	$	(10,639	)

The underfunded status of our plans was recognized in the consolidated balance sheets:

(In thousands)	2017			2016
Current liabilities	$	(672	)	$	(647	)
Other non-current liabilities	(9,635		)	(9,992		)
Total	$	(10,307	)	$	(10,639	)

The following was included in accumulated other comprehensive loss and has not yet been recognized as a component of net periodic benefit cost:

(In thousands)	2017		2016
Net actuarial loss	$	5,696	$	5,899
Accumulated other comprehensive loss	$	5,696	$	5,899

39

The amount recognized in comprehensive earnings, net of tax expense, was:

(In thousands)	2017			2016
Net actuarial gain	$	(130	)	$	(610	)
Total	$	(130	)	$	(610	)

Components of the defined-benefit pension plans' net periodic benefit cost:

(In thousands)	2017			2016			2015
Interest cost	$	555		$	566		$	550
Expected return on assets	(41		)	(137		)	(171		)
Amortization of unrecognized net loss	225			249			172
Net periodic benefit cost	$	739		$	678		$	551

Total net periodic pension benefit cost is expected to be approximately $0.7 million in fiscal 2018. The estimated net actuarial loss for the defined-benefit pension plans that will be amortized from accumulated other comprehensive loss into net periodic benefit cost for fiscal 2018 is $0.2 million, net of tax benefit.

Additional Information

Assumptions

Benefit Obligation Weighted-Average Assumptions	2017		2016		2015
Discount rate	3.80	%	3.85	%	3.60	%

Net Periodic Benefit Expense Weighted-Average Assumptions	2017		2016		2015
Discount rate	3.85	%	3.60	%	4.00	%
Expected long-term rate of return on assets	2.00	%	2.00	%	4.50	%

Discount rate. The discount rate reflects the current rate at which the defined-benefit plans' pension liabilities could be effectively settled at the end of the year based on the measurement date. The discount rate was determined by matching the expected benefit payments to payments from the Principal Discount Yield Curve. There are no known or anticipated changes in the discount rate assumption that will have a significant impact on pension expense in fiscal 2018.

Expected return on assets. To develop the expected long-term rate of return on assets, we considered historical long-term rates of return achieved by the plan investments, the plan's investment strategy, and current and projected market conditions.

In accordance with its policy, during fiscal 2016, the assets of the Tubelite plan were invested in a short-term bond fund and carried at fair value based on prices from recent trades of similar securities, which would be classified as Level 2 in the valuation hierarchy. Prior to this strategy change, the assets were invested in a long-term bond fund.

We do not maintain assets intended for the future use of the SERP.

Contributions

Contributions to the plans for each of fiscal 2017 and 2016 totaled $0.9 million, which equaled or exceeded the minimum funding requirement.

Estimated Future Benefit Payments

The following benefit payments, which reflect expected future service, are expected to be paid by the plans:

(In thousands)	2018		2019		2020		2021		2022		2023-2027
Estimated future benefit payments	$	1,016	$	1,052	$	1,026	$	1,009	$	984	$	4,602

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11.Commitments and Contingent Liabilities

Operating lease commitments. As of March 4, 2017, the Company was obligated under non-cancelable operating leases for buildings and equipment. Certain leases provide for increased rentals based upon increases in real estate taxes or operating costs. As part of our acquisition of Sotawall, we acquired leases to two properties which hold Sotawall's current principal facilities. The lessor under these leases is a company owned by the President of Sotawall. Future minimum rental payments under non-cancelable operating leases are:

(In thousands)	2018		2019		2020		2021		2022		Thereafter		Total
Total minimum payments	$	11,419	$	10,796	$	9,286	$	6,342	$	5,605	$	9,002	$	52,450

Total rental expense, including operating leases and short-term equipment rentals, was $16.9 million, $15.5 million and $18.7 million in fiscal 2017, 2016 and 2015, respectively.

At March 4, 2017, we had one sale and leaseback agreement for equipment that provides an option to purchase the equipment at projected future fair market value upon expiration of the lease in 2021. The lease is classified as an operating lease in accordance with applicable financial accounting standards. The Company has a deferred gain of $1.8 million under the sale and leaseback transaction, which is included in the balance sheet as other current and non-current liabilities. The average annual lease payment over the remaining life of the lease is $1.0 million.

Bond commitments. In the ordinary course of business, predominantly in the Company’s Architectural Services segment, the Company is required to provide surety or performance bonds that commit payments to its customers for any non-performance. At March 4, 2017, $96.2 million of the Company’s backlog was bonded by performance bonds with a face value of $343.7 million. Performance bonds do not have stated expiration dates, as the Company is released from the bonds upon completion of the contract. The Company has never been required to make any payments related to these performance-based bonds with respect to any of its current portfolio of businesses.

Warranties. We reserve estimated exposures on known claims, as well as on a portion of anticipated claims for product warranty and rework costs based on historical product liability claims as a ratio of sales. Claims are deducted from the accrual when paid. Factors that could have an impact on the warranty accrual in any given period include the following: changes in manufacturing quality, shifts in product mix and any significant changes in sales volume. A warranty rollforward follows:

(In thousands)	2017			2016
Balance at beginning of period	$	16,340		$	11,275
Additional accruals	11,499			8,214
Claims paid	(5,906		)	(3,149		)
Balance at end of period	$	21,933		$	16,340

Letters of credit. At March 4, 2017, we had ongoing letters of credit related to construction contracts and certain industrial revenue bonds. The total value of letters of credit under which we were obligated as of March 4, 2017 was approximately $23.5 million, all of which have been issued under our credit facility. Our total availability under our $175.0 million credit facility is reduced by borrowings under the credit facility and also by letters of credit issued under the credit facility.

Purchase obligations. Purchase obligations for raw material commitments and capital expenditures totaled $115.8 million as of March 4, 2017.

Environmental liability. In fiscal 2008, we acquired one manufacturing facility which has certain historical environmental conditions. We are working to remediate these conditions; remediation has been conducted without significant disruption to our operations. Our liability for these remediation activities was $1.4 million and $1.6 million at March 4, 2017 and February 27, 2016, respectively.

New Markets Tax Credit transactions. In June 2016, we entered into a transaction with a subsidiary of Wells Fargo (WF) under a qualified New Markets Tax Credit (NMTC) program related to an investment in plant and equipment within our Architectural Glass segment. Previously, in fiscal 2014, we entered into a NMTC transaction with JP Morgan Chase (JPM) related to a separate investment in plant and equipment within the Architectural Glass segment. Each NMTC transaction is subject to 100 percent tax credit recapture for a period of seven years. Therefore, proceeds received in exchange for the transfer of the tax credits will be recognized as earnings in fiscal 2021 and 2024, if the expected tax benefits are delivered without risk of recapture to each bank and our performance obligations are relieved.

41

In exchange for substantially all the benefits derived from tax credits, WF contributed $6.0 million and JPM contributed $10.7 million into each respective project. These amounts are included within other non-current liabilities on our consolidated balance sheets. Direct and incremental costs incurred in structuring these arrangements have been deferred and will be recognized in proportion to the recognition of the related profits. These costs amounted to $4.5 million and are included in other non-current assets on our consolidated balance sheets. Variable-interest entities were created as a result of the structure of these transactions, which have been included within our consolidated financial statements as the banks do not have a material interest in the underlying economics of the projects.

Litigation. The Company is a party to various legal proceedings incidental to its normal operating activities. In particular, like others in the construction supply and services industry, the Company’s construction supply and services businesses are routinely involved in various disputes and claims arising out of construction projects, sometimes involving significant monetary damages or product replacement. The Company is subject to litigation arising out of general liability, employment practices, workers' compensation and automobile claims. Although it is very difficult to accurately predict the outcome of such proceedings, facts currently available indicate that no such claims will result in losses that would have a material adverse effect on the results of operations, cash flows or financial condition of the Company.

12. Shareholders' Equity

A class of 200,000 shares of junior preferred stock with a par value of $1.00 is authorized, but unissued.

Share Repurchases

During fiscal 2004, the Board of Directors authorized a share repurchase program of 1,500,000 shares of common stock. The Board of Directors subsequently increased this authorization by 750,000 shares in fiscal 2008; by 1,000,000 shares in fiscal 2009; and by another 1,000,000 shares in fiscal 2016. We repurchased 250,001 shares under the program during fiscal 2017, for a total cost of $10.8 million. We repurchased 575,000 shares under the program, for a total cost of $24.9 million, in fiscal 2016 and 203,509 shares under the program, for a total cost of $6.9 million, in fiscal 2015. The Company has repurchased a total of 3,307,633 shares, at a total cost of $72.3 million, since the inception of this program. We have remaining authority to repurchase 942,367 shares under this program, which has no expiration date.

In addition to the shares repurchased under this repurchase plan, during fiscal 2017, 2016 and 2015, the Company also withheld $2.6 million, $5.1 million and $5.2 million, respectively, of Company stock from employees in order to satisfy stock-for-stock option exercises or tax obligations related to stock-based compensation, pursuant to terms of board and shareholder-approved compensation plans.

Accumulated Other Comprehensive Loss

The following summarizes the accumulated other comprehensive loss, net of tax, at March 4, 2017 and February 27, 2016:

(In thousands)	2017			2016
Net unrealized (loss) gain on marketable securities	$	(4	)	$	79
Pension liability adjustments	(3,628		)	(3,758		)
Foreign currency translation adjustments	(27,458		)	(27,692		)
Total accumulated other comprehensive loss	$	(31,090	)	$	(31,371	)

13. Share-Based Compensation

We have a 2009 Stock Incentive Plan and a 2009 Non-Employee Director Stock Incentive Plan (the Plans) which provide for the issuance of 1,888,000 and 350,000 shares, respectively, for various forms of stock-based compensation to employees and non-employee directors. Awards under these Plans may be in the form of incentive stock options (to employees only), nonstatutory options or stock-settled stock appreciation rights (SARs) and are granted with an exercise price equal to the fair market value of the Company’s stock at the date of award. We also issue nonvested share awards and nonvested share unit awards under the Plans. Issued SARs vest over a three-year period and options issued to non-employee directors vest at the end of six months, both with a 10-year term. Nonvested share awards and nonvested share unit awards generally vest over a two, three or four-year period.

We had a 2002 Omnibus Stock Incentive Plan, which was terminated in June 2009; no new grants may be made under this plan, although exercises of SARs and options previously granted thereunder will still occur in accordance with the terms of the various grants.

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Total stock-based compensation expense under all Plans included in the results of operations was $6.0 million for fiscal 2017, $4.9 million for fiscal 2016 and $4.8 million for 2015. We elect to account for any forfeitures as they occur.

Stock Options and SARs

There were no stock options or SARs issued in any fiscal year presented. Activity for the current year is summarized as follows:

	Number of Shares		Weighted Average Exercise  Price		Weighted Average Remaining Contractual Life	Aggregate Intrinsic Value at Year-End
Outstanding at February 27, 2016	403,714		$	11.81
Awards exercised	(173,813	)	14.34
Outstanding and exercisable at March 4, 2017	229,901		$	9.90	4.0 Years	$	11,101,695

Cash proceeds from the exercise of stock options were $1.9 million, $1.6 million and $1.2 million for fiscal 2017, 2016 and 2015, respectively. The aggregate intrinsic value of securities exercised (the amount by which the stock price on the date of exercise exceeded the stock price of the award on the date of grant) was $6.0 million, $7.5 million and $4.6 million in fiscal 2017, 2016 and 2015, respectively.

Nonvested Share Awards and Units

The following table summarizes nonvested share activity for fiscal 2017:

	Number of Shares and Units		Weighted Average Grant Date Fair Value
February 27, 2016	275,457		$	37.48
Granted	148,672		42.90
Vested	(143,875	)	28.81
Canceled	(1,050	)	44.55
March 4, 2017	279,204		$	44.80

At March 4, 2017, there was $6.6 million of total unrecognized compensation cost related to nonvested share and nonvested share unit awards, which is expected to be recognized over a weighted average period of approximately 20 months. The total fair value of shares vested during fiscal 2017 was $6.3 million.

14. Income Taxes

Earnings before income taxes consisted of the following:

(In thousands)	2017			2016			2015
U.S.	$	123,229		$	100,859		$	59,898
International	(424		)	(3,535		)	5,101
Earnings before income taxes	$	122,805		$	97,324		$	64,999

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The components of income tax expense (benefit) for each of the last three fiscal years was:

(In thousands)	2017			2016			2015
Current
Federal	$	35,610		$	35,888		$	7,328
State and local	2,929			2,866			1,198
International	(147		)	(636		)	1,790
Total current	38,392			38,118			10,316
Deferred
Federal	(945		)	(5,403		)	4,738
State and local	(78		)	(512		)	(363		)
International	(42		)	(224		)	(101		)
Total deferred	(1,065		)	(6,139		)	4,274
Total non-current tax (benefit) expense	(312		)	3			(107		)
Total income tax expense	$	37,015		$	31,982		$	14,483

Income tax payments, net of refunds were $47.8 million, $25.9 million and $11.3 million in fiscal 2017, 2016 and 2015, respectively.

The following table provides a reconciliation of the statutory federal income tax rate to our consolidated effective tax rates:

	2017		2016		2015
Federal income tax expense at statutory rate	35.0	%	35.0	%	35.0	%
Manufacturing deduction	(3.3	)	(3.4	)	(2.3	)
State and local income taxes, net of federal tax benefit	1.6		1.6		1.2
Foreign tax rate differential	(1.6	)	—		—
Tax credits - research & development	(0.7	)	(0.8	)	(1.1	)
Tax credits - 48C	—		—		(9.9	)
Other, net	(0.9	)	0.5		(0.6	)
Income tax expense	30.1	%	32.9	%	22.3	%

In the current year, we recorded a net tax benefit of $1.9 million on a distribution from our Brazilian operation. Additionally, in the fourth quarter, as a result of the adoption of ASU 2016-09 (see additional discussion in Note 1), we recognized tax benefits of $0.9 million within income tax expense. In fiscal 2016 and 2015, tax benefits associated with stock-based incentive plans were $3.9 million and $3.3 million, respectively. These benefits impacted additional paid-in capital and were not reflected in the determination of income tax expense or benefit.

In fiscal 2015, the Company recognized approximately $6.4 million of tax benefit from an energy-efficient investment credit under Section 48C of the U.S. Internal Revenue Code, upon successful start-up and commercial production of coatings on our new architectural glass coater. The tax credit was awarded in 2011 by the U.S. Internal Revenue Service (IRS) in cooperation with the Department of Energy as part of the American Reinvestment and Recovery Act to incent energy-efficient investments.

In the first quarter of fiscal 2017, the Company adopted ASU 2015-17, which requires deferred tax assets and liabilities to be classified as noncurrent in the financial statements. We have not elected to apply this change in accounting principle retroactively. Deferred tax assets and deferred tax liabilities at March 4, 2017 and February 27, 2016 were:

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	2017			2016
(In thousands)	Noncurrent			Current			Noncurrent
Accounts receivable	$	408		$	825		$	—
Other accruals	4,254			2,968			1,281
Deferred compensation	15,189			554			12,594
Goodwill and other intangibles	(7,601		)	18			(7,615		)
Depreciation	(18,714		)	—			(17,354		)
Liability for unrecognized tax benefits	2,623			—			2,797
Net operating losses	5,790			—			2,945
Valuation allowance on net operating losses	(2,352		)	(2,194		)	(306		)
Other	403			(351		)	686
Deferred tax (liabilities) assets	$	—		$	1,820		$	(4,972	)

The Company has U.S. federal tax credits as well as state net operating loss carryforwards with a tax effect of $5.5 million. A valuation allowance of $2.4 million has been established for these net operating loss carryforwards due to the uncertainty of the use of the tax benefits in future periods.

The Company files income tax returns in the U.S. federal jurisdiction, various U.S. state jurisdictions, Canada, Brazil and other international jurisdictions. The Company is no longer subject to U.S. federal tax examinations for years prior to fiscal 2014, or state and local income tax examinations for years prior to fiscal 2010. The Company is not currently under U.S. federal examination for years subsequent to fiscal 2013, and there is very limited audit activity of the Company’s income tax returns in U.S. state jurisdictions or international jurisdictions.

The Company considers the earnings of its non-U.S. subsidiaries to be indefinitely invested outside of the U.S. on the basis of estimates that future domestic cash generation will be sufficient to meet future domestic cash needs and specific plans for reinvestment of those subsidiary earnings. Should the Company decide to repatriate foreign earnings, it would need to adjust the income tax provision in the period it was determined that the earnings will no longer be indefinitely invested outside the U.S.

If we were to prevail on all unrecognized tax benefits recorded, $2.1 million, $2.7 million and $2.6 million for fiscal 2017, 2016 and 2015, respectively, would benefit the effective tax rate. Also included in the balance of unrecognized tax benefits for fiscal 2017, 2016 and 2015, are $2.0 million, $1.8 million and $1.9 million, respectively, of tax benefits that, if recognized, would result in adjustments to deferred taxes.

Penalties and interest related to unrecognized tax benefits are recorded in income tax expense. For fiscal 2017, we accrued penalties and interest related to unrecognized tax benefits of $0.4 million. For each of fiscal 2016 and 2015, the accrual was $0.5 million.

The following table provides a reconciliation of the total amounts of gross unrecognized tax benefits:

(In thousands)	2017			2016			2015
Gross unrecognized tax benefits at beginning of year	$	4,512		$	4,491		$	4,431
Gross increases in tax positions for prior years	54			60			261
Gross decreases in tax positions for prior years	(233		)	(158		)	(276		)
Gross increases based on tax positions related to the current year	508			526			508
Gross decreases based on tax positions related to the current year	—			(33		)	(21		)
Settlements	(23		)	—			(93		)
Statute of limitations expiration	(743		)	(374		)	(319		)
Gross unrecognized tax benefits at end of year	$	4,075		$	4,512		$	4,491

The total liability for unrecognized tax benefits is expected to decrease by approximately $0.4 million during fiscal 2018 due to lapsing of statutes.

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15. Earnings per Share

Basic earnings per share is computed by dividing net earnings by the weighted average number of common shares outstanding. Diluted earnings per share is computed by dividing net earnings by the weighted average number of common shares outstanding, including the dilutive effects of stock options, SARs and nonvested shares. The following table presents a reconciliation of the share amounts used in the computation of basic and diluted earnings per share:

(In thousands)	2017	2016	2015
Basic earnings per share - weighted average common shares outstanding	28,781	29,058	28,763
Weighted average effect of nonvested share grants and assumed exercise of stock options	112	317	611
Diluted earnings per share - weighted average common shares and potential common shares outstanding	28,893	29,375	29,374
Stock options excluded from the calculation of earnings per share because the exercise price was greater than the average market price of the common shares	—	—	—

16.Business Segment Data

We have four reporting segments:

• The Architectural Glass segment fabricates coated, high-performance glass used globally in customized window and wall systems comprising the outside skin of commercial, institutional and high-end multi-family residential buildings.

• The Architectural Framing Systems segment designs, engineers, fabricates and finishes the aluminum frames used in customized aluminum and glass window, curtainwall, storefront and entrance systems comprising the outside skin and entrances of commercial, institutional and high-end multi-family residential buildings. We have aggregated five operating segments into this reporting segment based on their similar products, customers, distribution methods, production processes and economic characteristics.

• The Architectural Services segment provides full-service installation of the walls of glass, windows and other curtainwall products making up the outside skin of commercial and institutional buildings.

• The Large-Scale Optical Technologies (LSO) segment manufactures value-added glass and acrylic products for framing and display applications.

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(In thousands)	2017			2016			2015
Net Sales
Architectural Glass	$	411,881		$	377,713		$	346,471
Architectural Framing Systems	385,978			308,593			298,395
Architectural Services	270,937			245,935			230,650
Large-Scale Optical	89,710			88,541			87,693
Intersegment elimination	(43,973		)	(39,593		)	(29,273		)
Total	$	1,114,533		$	981,189		$	933,936
Operating Income (Loss)
Architectural Glass	$	44,656		$	35,504		$	16,431
Architectural Framing Systems	44,768			31,911			21,808
Architectural Services	18,494			11,687			7,442
Large-Scale Optical	22,467			22,963			21,954
Corporate and other	(8,160		)	(4,672		)	(4,050		)
Total	$	122,225		$	97,393		$	63,585
Depreciation and Amortization
Architectural Glass	$	15,912		$	14,397		$	12,897
Architectural Framing Systems	12,404			8,019			8,001
Architectural Services	1,364			1,274			1,375
Large-Scale Optical	4,785			4,998			4,817
Corporate and other	1,142			2,560			2,333
Total	$	35,607		$	31,248		$	29,423
Capital Expenditures
Architectural Glass	$	44,439		$	17,701		$	12,307
Architectural Framing Systems	14,070			19,166			9,238
Architectural Services	1,981			929			595
Large-Scale Optical	1,510			1,962			3,500
Corporate and other	6,061			2,279			1,580
Total	$	68,061		$	42,037		$	27,220
Identifiable Assets
Architectural Glass	$	254,840		$	215,571		$	223,525
Architectural Framing Systems	359,633			193,823			190,106
Architectural Services	70,875			81,574			68,930
Large-Scale Optical	58,198			57,369			60,356
Corporate and other	41,112			109,103			69,140
Total	$	784,658		$	657,440		$	612,057

Due to the varying combinations and integration of individual window, storefront and curtainwall systems, the Company has determined that it is impractical to report product revenues generated by class of product beyond the segment revenues currently reported.

Segment operating income is equal to net sales less cost of sales and operating expenses. Operating income does not include interest expense or a provision for income taxes. Corporate and other includes miscellaneous corporate activity not allocable to our segments. Identifiable assets for Corporate and other include all short- and long-term available-for-sale securities.

The following table presents net sales, based on the location in which the sale originated, and long-lived assets, representing property, plant and equipment, net of related depreciation, by geographic region.

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(In thousands)	2017		2016		2015
Net Sales
United States	$	1,031,214	$	923,018	$	847,887
Canada	65,958		39,324		50,807
Brazil	17,361		18,847		35,242
Total	$	1,114,533	$	981,189	$	933,936
Long-Lived Assets
United States	$	227,145	$	189,624	$	178,048
Canada	13,303		7,162		8,214
Brazil	6,300		5,676		7,278
Total	$	246,748	$	202,462	$	193,540

Apogee's export net sales from U.S. operations of $76.2 million for fiscal 2017 were approximately 7 percent of consolidated net sales; export net sales of $79.5 million for fiscal 2016 were approximately 8 percent of consolidated net sales; and export sales of $72.7 million for fiscal 2015 were approximately 8 percent of consolidated net sales.

17. Quarterly Data (Unaudited)

	Quarter
(In thousands, except per share data)	First		Second		Third		Fourth (1)		Total
2017
Net sales	$	247,880	$	278,455	$	274,072	$	314,126	$	1,114,533
Gross profit	64,428		72,531		72,868		82,196		292,023
Net earnings	17,722		22,397		22,552		23,119		85,790
Earnings per share - basic	0.62		0.78		0.78		0.81		2.98
Earnings per share - diluted	0.61		0.77		0.78		0.80		2.97
2016
Net sales	$	239,962	$	240,754	$	238,324	$	262,149	$	981,189
Gross profit	55,588		56,699		62,426		68,857		243,570
Net earnings	12,126		14,760		18,521		19,935		65,342
Earnings per share - basic	0.42		0.51		0.64		0.69		$	2.25
Earnings per share - diluted	0.41		0.50		0.63		0.69		$	2.22

Per share amounts are computed independently for each of the quarters presented. The sum of the quarters may not equal the total year amount due to the impact of changes in average quarterly shares outstanding, and all other quarterly amounts may not equal the total year due to rounding.

⁽¹⁾ We acquired Sotawall in the fourth quarter of fiscal 2017; refer to Note 2 for additional information.

ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE

None.

ITEM 9A. CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures. As of the end of the period covered by this report (the Evaluation Date), we carried out an evaluation, under the supervision and with the participation of management, including the Chief Executive Officer and the Chief Financial Officer, of the effectiveness of the design and operation of our disclosure controls and procedures (as defined in Rules 13a-15(e) or 15d-15(e) of the Exchange Act). Based upon that evaluation, the Chief Executive Officer and Chief Financial Officer concluded that, as of the Evaluation Date, our disclosure controls and procedures were effective to ensure that information required to be disclosed by the Company in the reports that it files or submits under the Exchange Act is (i) recorded, processed, summarized and reported within the time periods specified in applicable rules and forms, and (ii) accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, to allow timely decisions regarding required disclosure.

Management's Annual Report on Internal Control Over Financial Reporting. The report of management required under this Item 9A is contained on page 22 in Item 8 of this Annual Report on Form 10-K under the caption “Management's Annual Report on Internal Control Over Financial Reporting.”

Attestation Report of Independent Registered Public Accounting Firm. The attestation report required under this Item 9A is contained on page 24 in Item 8 of this Annual Report on Form 10-K under the caption “Report of Independent Registered Public Accounting Firm.”

Changes in Internal Control over Financial Reporting.  There have not been any changes in our internal control over financial reporting (as such term is defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) during the most recent fiscal quarter covered by this report that would have materially affected, or are reasonably likely to materially affect, the Company's internal control over financial reporting.

ITEM 9B.OTHER INFORMATION

None.

PART III

ITEM 10. DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE

We have adopted a Code of Business Ethics and Conduct that applies to all of our employees and Board of Directors. The Code of Business Ethics and Conduct is published on our website at www.apog.com. Any amendments to the Code of Business Ethics and Conduct and waivers of the Code of Business Ethics and Conduct for our Chief Executive Officer and Chief Financial Officer will be published on our website.

The other information required by this item, other than the information set forth in Part I above under the heading “Executive Officers of the Registrant,” is set forth under the headings “Proposal 1: Election of Directors,” “Frequently Asked Questions - How Can A Shareholder Recommend or Nominate a Director Candidate?”, “Corporate Governance - Board Meetings and 2016 Annual Meeting of Shareholders,” “Corporate Governance - Board Committee Responsibilities, Meetings and Membership” and “Section 16(a) Beneficial Ownership Reporting Compliance" in the Proxy Statement for the Company's Annual Meeting of Shareholders to be held on June 22, 2017, which will be filed with the Securities and Exchange Commission within 120 days after our fiscal year-end (our 2017 Proxy Statement). This information is incorporated herein by reference.

ITEM 11. EXECUTIVE COMPENSATION

The information required by this item is set forth under the headings “Executive Compensation” and “Non-Employee Director Compensation" in our 2017 Proxy Statement. This information is incorporated herein by reference.

ITEM 12.SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS

The following table summarizes, with respect to our equity compensation plans, the number of shares of our common stock to be issued upon exercise of outstanding options, warrants and other rights to acquire shares, the weighted-average exercise price of these outstanding options, warrants and rights, and the number of shares remaining available for future issuance under our equity compensation plans as of March 4, 2017, the last day of fiscal 2017.

Plan Category	Number of Securities to be Issued Upon Exercise of Outstanding Options, Warrants and Rights		Weighted-Average Exercise Price of Outstanding Options, Warrants and Rights			Number of Securities Remaining Available for Future Issuance under Equity Compensation Plans (Excluding Securities Reflected in the First Column)
Equity compensation plans approved by security holders	29,560	(1) (2)	$	20.48	(3)	1,042,458	(4)
Equity compensation plans not approved by security holders	200,341	(5)	8.34			None
Total	229,901		$	9.90		1,042,458

48

⁽¹⁾  Includes options and SARs granted under our Amended and Restated 2002 Omnibus Stock Incentive Plan and restricted stock unit awards granted under our Stock Incentive Plan and Director Stock Plan. None of the outstanding stock options or SARs has dividends rights attached, nor are they transferable. Certain outstanding restricted stock units have dividend rights attached, but none of the restricted stock units are transferable.

⁽²⁾  Pursuant to SEC rules and the reporting requirements for this table, we have not included in this column 255,914 shares of restricted stock that are issued and outstanding. All shares of restricted stock outstanding have dividend rights attached, but none of the shares of restricted stock are transferable.

⁽³⁾  In calculating the weighted-average exercise price of outstanding options, warrants and rights, only the exercise prices of outstanding options and SARs are included, as the restricted stock units do not have an exercise price.

⁽⁴⁾  Pursuant to SEC Rules and the reporting requirements for this table, of these shares, 56,539 are available for issuance under our Legacy Partnership Plan, 680,642 are available for grant under our Stock Incentive Plan, 102,912 are available for grant under our Director Stock Incentive Plan; no shares are available for grant under our 2002 Omnibus Stock Incentive Plan, and 202,365 are available for grant under our Director Deferred Compensation Plan.

⁽⁵⁾  Reflects stock options granted to Mr. Puishys on August 22, 2011 as inducement awards pursuant to the terms of his employment agreement with our Company effective as of August 22, 2011, that became fully vested on August 22, 2014. The options vested in equal annual installments over a three-year period beginning on August 22, 2012.

ITEM 13.CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE

The information required by this item is set forth under the headings “Corporate Governance - Board Independence” and "Corporate Governance - Certain Relationships and Related Transactions" in our 2017 Proxy Statement. This information is incorporated herein by reference.

ITEM 14.PRINCIPAL ACCOUNTANT FEES AND SERVICES

The information required by this item is set forth under the headings “Audit Committee Report and Payment of Fees to Independent Registered Public Accounting Firm - Audit Fees, Audit-Related Fees, Tax Fees and All Other Fees” and “Policy on Audit Committee Pre-Approval of Audit and Permissible Non-Audit Services Provided by Our Independent Registered Public Accounting Firm” in our 2017 Proxy Statement. This information is incorporated herein by reference.

PART IV

ITEM 15. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES

a) List of documents filed as a part of this report:

1. Financial Statements - The consolidated financial statements listed below are set forth in Item 8 of Part II of this report.

Consolidated Balance Sheets as of March 4, 2017 and February 27, 2016

Consolidated Results of Operations for the Years Ended March 4, 2017, February 27, 2016 and February 28, 2015

Consolidated Statements of Comprehensive Earnings for the Years Ended March 4, 2017, February 27, 2016 and February 28, 2015

Consolidated Statements of Cash Flows for the Years Ended March 4, 2017, February 27, 2016 and February 28, 2015

Consolidated Statements of Shareholders' Equity for the Years Ended March 4, 2017, February 27, 2016 and February 28, 2015

Notes to Consolidated Financial Statements

2. Financial Statement Schedules - Valuation and Qualifying Accounts

(In thousands)	Balance at Beginning of Period		Acquisitions		Charged to Costs and Expenses			Deductions from Reserves(1)		Other Changes(2)			Balance at End of  Period
Allowances for doubtful receivables
For the year ended March 4, 2017	$	2,497	$	25	$	(416	)	$	579	$	(32	)	$	1,495
For the year ended February 27, 2016	3,242		—		(197		)	493		(55		)	2,497
For the year ended February 28, 2015	2,934		—		1,322			969		(45		)	3,242

(1) Net of recoveries

(2) Result of foreign currency effects

49

All other schedules for which provision is made in the applicable accounting regulations of the Securities and Exchange Commission have been omitted because they are not applicable or the required information is shown in the financial statements or notes thereto.

3. Exhibits - Exhibits marked with an asterisk (*) identify each management contract or compensatory plan or arrangement. Exhibits marked with a pound sign (#) are filed herewith. The remainder of the exhibits have heretofore been filed with the Securities and Exchange Commission and are incorporated herein by reference.

3.1	Restated Articles of Incorporation. Incorporated by reference to Exhibit 3.1 to Registrant's Annual Report on Form 10-K for the year-ended February 28, 2004.
3.2	Amended and Restated Bylaws of Apogee Enterprises, Inc., as amended through January 24, 2006. Incorporated by reference to Exhibit 3.1 to Registrant's Current Report on Form 8-K filed on January 30, 2006.
4.1	Specimen certificate for shares of common stock of Apogee Enterprises, Inc. Incorporated by reference to Exhibit 4.1 to Registrant's Annual Report on Form 10-K for the year ended March 3, 2012.
10.1*	Apogee Enterprises, Inc. Officers' Supplemental Executive Retirement Plan (2005 Restatement), First Amendment of Apogee Enterprises, Inc. Officers' Supplemental Executive Retirement Plan (2005 Restatement) and Second Amendment of Apogee Enterprises, Inc. Officers' Supplemental Executive Retirement Plan (2005 Restatement). Incorporated by reference to Exhibit 10.1 to Registrant's Current Report on Form 8-K filed on January 29, 2008.
10.2*	Third Amendment of Apogee Enterprises, Inc. Officers' Supplemental Executive Retirement Plan (2005 Restatement). Incorporated by reference to Exhibit 10.2 to Registrant's Current Report on Form 8-K filed on October 15, 2008.
10.3*	Apogee Enterprises, Inc. Deferred Compensation Plan for Non-Employee Directors (2014 Restatement). Incorporated by reference to Exhibit 4.4 to Registrant's Registration Statement on Form S-8 filed on July 24, 2014.
10.4*	Apogee Enterprises, Inc. Amended and Restated 2002 Omnibus Stock Incentive Plan. Incorporated by reference to Exhibit 10.1 to the Registrant's Current Report on Form 8-K filed on June 30, 2006.
10.5*	Apogee Enterprises, Inc. 2000 Employee Stock Purchase Plan (Amended and Restated Effective as of May 1, 2003). Incorporated by reference to Exhibit 4.4 to Registrant's Registration Statement on Form S-8 filed on October 9, 2015.
10.6*	First Amendment of Apogee Enterprises, Inc. 2000 Employee Stock Purchase Plan (Amended and Restated Effective as of May 1, 2003) dated February 27, 2009. Incorporated by reference to Exhibit 4.5 to Registrant's Registration Statement on Form S-8 filed on October 9, 2015.
10.7*	Form of Stock Appreciation Rights Agreement under the Apogee Enterprises, Inc. 2002 Omnibus Stock Incentive Plan. Incorporated by reference to Exhibit 10.2 to Registrant's Current Report on Form 8-K filed on April 19, 2005.
10.8*	Apogee Enterprises, Inc. Non-Employee Director Charitable Matching Contribution Program. Incorporated by reference to Exhibit 10.25 to Registrant's Annual Report on Form 10-K for the year-ended February 26, 2005.
10.9*	Form of Non-Employee Director Stock Option Agreement under the Apogee Enterprises, Inc. 2002 Omnibus Stock Incentive Plan. Incorporated by reference to Exhibit 10.1 to Registrant's Current Report on Form 8-K filed on June 16, 2005.
10.10*	Apogee Enterprises, Inc. Deferred Incentive Compensation Plan (2005 Restatement). Incorporated by reference to Exhibit 10.3 to Registrant's Current Report on Form 8-K filed on October 17, 2006.
10.11*	First Amendment of Apogee Enterprises, Inc. Deferred Incentive Compensation Plan (2005 Restatement). Incorporated by reference to Exhibit 10.4 to Registrant's Current Report on Form 8-K filed on October 15, 2008.
10.12*	Second Amendment of Apogee Enterprises, Inc. Deferred Incentive Compensation Plan (2005 Restatement). Incorporated by reference to Exhibit 10.3 to Registrant's Current Report on Form 8-K filed on March 4, 2009.
10.13*	Third Amendment of Apogee Enterprises, Inc. Deferred Incentive Compensation Plan (2005 Restatement). Incorporated by reference to Exhibit 10.5 to Registrant's Current Report on Form 8-K filed on October 12, 2010.
10.14*	Fourth Amendment of Apogee Enterprises, Inc. Deferred Incentive Compensation Plan (2005 Restatement). Incorporated by reference to Exhibit 10.3 to Registrant's Quarterly Report on Form 10-Q filed on January 6, 2011.
10.15*	Apogee Enterprises, Inc. Partnership Plan (2005 Restatement). Incorporated by reference to Exhibit 10.5 to Registrant's Current Report on Form 8-K filed on October 17, 2006.
10.16*	First Amendment of Apogee Enterprises, Inc. Partnership Plan (2005 Restatement). Incorporated by reference to Exhibit 10.6 to Registrant's Current Report on Form 8-K filed on October 15, 2008.
10.17*	Second Amendment of Apogee Enterprises, Inc. Partnership Plan (2005 Restatement). Incorporated by reference to Exhibit 10.8 to Registrant's Current Report on Form 8-K filed on March 4, 2009.

50

10.18*	Third Amendment of Apogee Enterprises, Inc. Partnership Plan (2005 Restatement). Incorporated by reference to Exhibit 10.4 to Registrant's Quarterly Report on Form 10-Q filed on January 6, 2011.
10.19*	Apogee Enterprises, Inc. 2009 Stock Incentive Plan, as amended and restated (2011). Incorporated by reference to Exhibit 10.1 to Registrant's Current Report on Form 8-K filed on June 28, 2011.
10.20*	Apogee Enterprises, Inc. 2009 Non-Employee Director Stock Incentive Plan, as amended and restated (2014). Incorporated by reference to Exhibit 4.4 to Registrant's Registration Statement on Form S-8 filed on July 24, 2014.
10.21*	Form of Restricted Stock Agreement under the Apogee Enterprises, Inc. 2009 Non-Employee Director Stock Incentive Plan. Incorporated by reference to Exhibit 10.3 to Registrant's Current Report on Form 8-K filed on June 30, 2009.
10.22*	Restricted Stock Deferral Program under the Apogee Enterprises, Inc. 2009 Non-Employee Director Stock Incentive Plan, as Amended and Restated (2014) (2015 Statement). Incorporated by reference to Exhibit 10.1 to Registrant's Current Report on Form 8-K filed on June 30, 2015.
10.23*	Form of Deferred Restricted Stock Unit Agreement under the Apogee Enterprises, Inc. 2009 Non-Employee Director Stock Incentive Plan, as Amended and Restated (2014) (2015 Statement). Incorporated by reference to Exhibit 10.2 to Registrant's Current Report on Form 8-K filed on June 30, 2015.
10.24*	Form of Restricted Stock Agreement under the Apogee Enterprises, Inc. 2009 Stock Incentive Plan for awards made on or after April 26, 2011. Incorporated by reference to Exhibit 10.3 to Registrant's Current Report on Form 8-K filed on May 2, 2011.
10.25*	Form of Performance Award Agreement under the Apogee Enterprises, Inc. 2009 Stock Incentive Plan, as amended and restated (2011). Incorporated by reference to Exhibit 10.3 to Registrant's Current Report on Form 8-K filed on May 5, 2014.
10.26*	Apogee Enterprises, Inc. 2011 Deferred Compensation Plan, effective January 1, 2011. Incorporated by reference to Exhibit 10.1 to Registrant's Current Report on Form 8-K filed on October 12, 2010.
10.27*	First Amendment to the Apogee Enterprises, Inc. 2011 Deferred Compensation Plan. Incorporated by reference to Exhibit 10.3 to the Registrant's Current Report on Form 8-K filed July 1, 2014.
10.28*	Second Amendment to the Apogee Enterprises, Inc. 2011 Deferred Compensation Plan. Incorporated herein by reference to Exhibit 10.2 to Registrant’s Current Report on Form 8-K filed on June 29, 2016.
10.29*	Form of Change in Control Severance Agreement. Incorporated by reference to Exhibit 10.1 to Registrant's Current Report on Form 8-K filed on March 3, 2011.
10.30*	Employment Agreement between Apogee Enterprises, Inc. and Joseph F. Puishys, made and entered into as of August 5, 2011, to be effective as of August 22, 2011. Incorporated by reference to Exhibit 10.1 to Registrant's Current Report on Form 8-K filed on August 8, 2011.
10.31*	Form of Restricted Stock Agreement to be entered into by Apogee Enterprises, Inc. and Joseph F. Puishys on August 22, 2011. Incorporated by reference to Exhibit 10.2 to Registrant's Current Report on Form 8-K filed on August 8, 2011.
10.32*	Form of Option Agreement to be entered into by Apogee Enterprises, Inc. and Joseph F. Puishys on August 22, 2011. Incorporated by reference to Exhibit 10.3 to Registrant's Current Report on Form 8-K filed on August 8, 2011.
10.33*	Form of Bonus Pool Award Agreement under the Apogee Enterprises, Inc. 2012 Executive Management Incentive Plan. Incorporated by reference to Exhibit 10.1 to Registrant's Current Report on Form 8-K filed on May 5, 2014.
10.34*	Form of Performance Award Agreement under the Apogee Enterprises, Inc. 2009 Stock Incentive Plan, as amended and restated (2011). Incorporated by reference to Exhibit 10.2 to Registrant's Current Report on Form 8-K filed on May 2, 2012.
10.35*	Apogee Enterprises, Inc. 2012 Executive Management Incentive Plan. Incorporated by reference to Exhibit 10.1 to Registrant's Current Report on Form 8-K filed on June 27, 2012.
10.36*	Form of Retention Incentive Agreement under the Apogee Enterprises, Inc. 2009 Stock Incentive Plan, as amended and restated (2011). Incorporated by reference to Exhibit 10.1 to Registrant's Current Report on Form 8-K filed July 1, 2014.
10.37*	Form of CEO Performance-Based Retention Incentive Agreement under the Apogee Enterprises, Inc. 2009 Stock Incentive Plan, as amended and restated (2011). Incorporated herein by reference to Exhibit 10.5 to Registrant’s Current Report on Form 8-K filed on April 27, 2016.
10.38*	Form of Evaluation-Based Retention Agreement under the Apogee Enterprises, Inc. 2012 Executive Management Incentive Plan. Incorporated by reference to Exhibit 10.2 to Registrant's Current Report on Form 8-K filed July 1, 2014.
10.39*	Form of CEO Evaluation-Based Retention Incentive Agreement under the Apogee Enterprises, Inc. 2012 Executive Management Incentive Plan. Incorporated herein by reference to Exhibit 10.3 to Registrant’s Current Report on Form 8-K filed on May 6, 2015.

51

10.40*	Apogee Enterprises, Inc. 2016 Executive Management Incentive Plan. Incorporated herein by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K filed on June 29, 2016.
10.41*	First Amendment to Apogee Enterprises, Inc. 2016 Executive Management Incentive Plan. Incorporated herein by reference to Exhibit 10.1 to Registrant’s Current Report on Form 8-K/A filed on August 10, 2016.
10.42	Share Purchase Agreement, dated November 5, 2013, between 2393514 Ontario Inc., Apogee Enterprises, Inc., PEF 2005 Alumicor Investment Limited Partnership, on behalf of itself and as Sellers’ Agent, Andre Belanger, Ken Rowson, John Castelhano, Anthony Kerwin, Lawrence Maker, Paul Antoniadis, and Alumicor Limited. Incorporated by reference to Exhibit 2.1 to Registrant’s Current Report on Form 8-K filed on November 5, 2013.
10.43	Second Amended and Restated Credit Agreement, dated November 2, 2016, by and among Apogee Enterprises, Inc., as the Borrower, the Lenders referred to therein, Wells Fargo Bank, National Association, as Administrative Agent, Swing Line Lender and Issuing Lender, and U.S. Bank National Association, as Syndication Agent and Issuing Lender. Incorporated herein by reference to Exhibit 10.1 to Registrant’s Current Report on Form 8-K filed on November 4, 2016.
10.44	Asset Purchase Agreement between Sotawall, Inc., Juan A. Speck and WPP Acquisition Corporation, dated December 14, 2016. Incorporated herein by reference to Exhibit 10.1 to Registrant’s Current Report on Form 8-K filed on December 20, 2016.
10.45*	Apogee Enterprises, Inc. 401(k) Retirement Plan, effective January 1, 2015. Incorporated by reference to Exhibit 4.4 to Registrant's Registration Statement on Form S-8 filed October 9, 2015.
21#	Subsidiaries of the Registrant.
23#	Consent of Deloitte & Touche LLP.
31.1#	Certification of Chief Executive Officer pursuant to rule 13a-14(a) under the Securities Exchange Act of 1934.
31.2#	Certification of Chief Financial Officer pursuant to rule 13a-14(a) under the Securities Exchange Act of 1934.
32.1#	Certification of Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
32.2#	Certification of Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101	The following materials from Apogee Enterprises, Inc.'s Annual Report on Form 10-K for the year ended March 4, 2017 are furnished herewith, formatted in XBRL (Extensible Business Reporting Language): (i) the Consolidated Balance Sheets as of March 4, 2017 and February 27, 2016, (ii) the Consolidated Results of Operations for the three years ended March 4, 2017, February 27, 2016 and February 28, 2015, (iii) the Consolidated Statements of Comprehensive Earnings for the three years ended March 4, 2017, February 27, 2016 and February 28, 2015, (iv) the Consolidated Statements of Cash Flows for the three years ended March 4, 2017, February 27, 2016 and February 28, 2015, (v) the Consolidated Statements of Shareholders' Equity for the years ended March 4, 2017, February 27, 2016 and February 28, 2015 and (vi) the Notes to Consolidated Financial Statements.

ITEM 16. FORM 10-K SUMMARY

None.

52

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized, on April 28, 2017.

APOGEE ENTERPRISES, INC.

/s/ Joseph F. Puishys

Joseph F. Puishys

President and Chief Executive Officer

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities indicated on April 28, 2017.

Signature	Title	Signature	Title
/s/ Joseph F. Puishys	President, CEO and	/s/ James S. Porter	Executive Vice
Joseph F. Puishys	Director (Principal Executive Officer)	James S. Porter	President and CFO (Principal Financial and Accounting Officer)
/s/ Bernard P. Aldrich	Chairman	/s/ Robert J. Marzec	Director
Bernard P. Aldrich		Robert J. Marzec
/s/ Jerome L. Davis	Director	/s/ Donald A. Nolan	Director
Jerome L. Davis		Donald A. Nolan
/s/ Sara L. Hays	Director	/s/ Richard V. Reynolds	Director
Sara L. Hays		Richard V. Reynolds
/s/ John T. Manning	Director	/s/ Patricia K. Wagner	Director
John T. Manning		Patricia K. Wagner
		/s/ David E. Weiss	Director
		David E. Weiss

53

EX-21

Exhibit 21

SUBSIDIARIES OF THE REGISTRANT

The Company is the owner of all of the issued and outstanding stock of the following corporations, except as noted below.

Name of Subsidiary	State or Country of Incorporation
Prism Assurance, Ltd.	Vermont
Harmon, Inc.	Minnesota
Harmon Contract, Inc.	Minnesota
Viracon, Inc.	Minnesota
Viracon Georgia, Inc. (1)	Minnesota
Viracon Singapore Pte. Ltd (1)	Singapore
Glassec Vidros de Seguranca Ltda. (2)	Brazil
Tru Vue, Inc.	Illinois
Tru Vue Netherlands, B.V. (3)	Netherlands
Apogee Services, Inc. (4)	Minnesota
Apogee Wausau Group, Inc.	Wisconsin
Tubelite Inc.	Michigan
Alumicor Limited	Canada
Sotawall Limited	Canada

(1)Owned by Viracon, Inc.

(2)Owned 99.9+% by Viracon, Inc. and <0.1% by Harmon Contract, Inc.

(3)Owned by Tru Vue, Inc.

(4)Owned by Harmon, Inc.

EX-23

Exhibit 23

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in Registration Statements Nos. 333‑58181, 333‑95863, 333‑137982, 333-160205, 333-169944, 333-175404, 333-190179, 333-197617, 333-197618, 333-207364, and 333-207369 on Form S‑8 of our reports dated April 28, 2017, relating to the consolidated financial statements and financial statement schedule of Apogee Enterprises, Inc. and subsidiaries (the “Company”) and the effectiveness of the Company’s internal control over financial reporting, appearing in this Annual Report on Form 10‑K of Apogee Enterprises, Inc. for the year ended March 4, 2017.

/s/ Deloitte & Touche LLP

Minneapolis, Minnesota

April 28, 2017

EX-31.1

Exhibit 31.1

CERTIFICATION

I, Joseph F. Puishys, certify that:

1. I have reviewed this annual report on Form 10-K of Apogee Enterprises, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrants most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: April 28, 2017

/s/ Joseph F. Puishys

Joseph F. Puishys

President and Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATION

I, James S. Porter, certify that:

1. I have reviewed this annual report on Form 10-K of Apogee Enterprises, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrants most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: April 28, 2017

/s/ James S. Porter

James S. Porter

Executive Vice President and Chief Financial Officer

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report of Apogee Enterprises, Inc. (the “Company”) on Form 10-K for the period ended March 4, 2017, as filed with the Securities and Exchange Commission (the “Report”), I, Joseph F. Puishys, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. §1350, as adopted pursuant §906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Joseph F. Puishys

Joseph F. Puishys

President and Chief Executive Officer

April 28, 2017

EX-32.2

Exhibit 32.2

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report of Apogee Enterprises, Inc. (the “Company”) on Form 10-K for the period ended March 4, 2017, as filed with the Securities and Exchange Commission (the “Report”), I, James S. Porter, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. §1350, as adopted pursuant §906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ James S. Porter

James S. Porter

Executive Vice President and Chief Financial Officer

April 28, 2017

XML

Document and Entity Information - USD ($)	12 Months Ended
	Mar. 04, 2017	Apr. 26, 2017	Aug. 27, 2016
Document and Entity Information [Abstract]
Entity Registrant Name	APOGEE ENTERPRISES, INC.
Trading Symbol	APOG
Entity Central Index Key	0000006845
Document Type	10-K
Document Period End Date	Mar. 04, 2017
Amendment Flag	false
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	FY
Current Fiscal Year End Date	--03-04
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		28,679,636
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Public Float			$ 1,386,000,000

XML

Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 04, 2017	Feb. 27, 2016
Current assets
Cash and cash equivalents	$ 19,463	$ 60,470
Short-term available for sale securities	548	30,173
Restricted cash	7,834	0
Receivables, net of allowance for doubtful accounts	185,740	172,832
Inventories	73,409	63,386
Refundable income taxes	1,743	0
Deferred tax assets	0	1,820
Other current assets	8,724	8,112
Total current assets	297,461	336,793
Property, plant and equipment, net	246,748	202,462
Available for sale securities	9,041	12,519
Deferred tax assets	4,025	0
Goodwill	101,334	73,996
Intangible assets	106,686	19,862
Other non-current assets	19,363	11,808
Total assets	784,658	657,440
Current liabilities
Accounts payable	63,182	64,762
Accrued payroll and related benefits	51,244	39,946
Accrued self-insurance reserves	8,575	7,818
Other current liabilities	34,200	29,339
Billings in excess of costs and earnings on uncompleted contracts	28,857	31,890
Accrued income taxes	0	3,626
Total current liabilities	186,058	177,381
Long-term debt	65,400	20,400
Unrecognized tax benefits	3,980	4,441
Long-term self-insurance reserves	8,831	7,137
Deferred tax liabilities	4,025	4,972
Other non-current liabilities	45,787	36,914
Commitments and contingent liabilities (Note 11)
Shareholders’ equity
Common stock of $0.33-1/3 par value; authorized 50,000,000 shares; issued and outstanding 28,680,841 and 28,683,948 shares, respectively	9,560	9,561
Additional paid-in capital	150,111	145,528
Retained earnings	341,996	282,477
Common stock held in trust	(875)	(837)
Deferred compensation obligations	875	837
Accumulated other comprehensive loss	(31,090)	(31,371)
Total shareholders’ equity	470,577	406,195
Total liabilities and shareholders’ equity	$ 784,658	$ 657,440

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Consolidated Balance Sheets (Parenthetical) - $ / shares	Mar. 04, 2017	Feb. 27, 2016
Statement of Financial Position [Abstract]
Common stock, par value	$ 0.3333	$ 0.3333
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	28,680,841	28,683,948
Common stock, shares outstanding	28,680,841	28,683,948

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Consolidated Results of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Mar. 04, 2017	Feb. 27, 2016	Feb. 28, 2015
Income Statement [Abstract]
Net sales	$ 1,114,533	$ 981,189	$ 933,936
Cost of sales	822,510	737,619	725,392
Gross profit	292,023	243,570	208,544
Selling, general and administrative expenses	169,798	146,177	144,959
Operating income	122,225	97,393	63,585
Interest income	1,008	981	954
Interest expense	971	593	924
Other income (expense), net	543	(457)	1,384
Earnings before income taxes	122,805	97,324	64,999
Income tax expense	37,015	31,982	14,483
Net earnings	$ 85,790	$ 65,342	$ 50,516
Earnings per share - basic (USD per share)	$ 2.98	$ 2.25	$ 1.76
Earnings per share - diluted (USD per share)	$ 2.97	$ 2.22	$ 1.72
Weighted average basic shares outstanding	28,781	29,058	28,763
Weighted average diluted shares outstanding	28,893	29,375	29,374

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Consolidated Statements of Comprehensive Earnings - USD ($) $ in Thousands	12 Months Ended
	Mar. 04, 2017	Feb. 27, 2016	Feb. 28, 2015
Statement of Comprehensive Income [Abstract]
Net earnings	$ 85,790	$ 65,342	$ 50,516
Other comprehensive earnings (loss):
Unrealized (loss) gain on marketable securities, net of $(45), $38 and $88 of tax (benefit) expense, respectively	(83)	73	163
Unrealized loss on foreign currency hedge, net of $-, $- and $(36) of tax benefit, respectively	0	0	(62)
Unrealized gain (loss) on pension obligation, net of $74, $347 and $(830) of tax expense (benefit), respectively	130	610	(1,458)
Foreign currency translation adjustments	234	(9,734)	(8,003)
Other comprehensive earnings (loss)	281	(9,051)	(9,360)
Total comprehensive earnings	$ 86,071	$ 56,291	$ 41,156

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Consolidated Statements of Comprehensive Earnings (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Mar. 04, 2017	Feb. 27, 2016	Feb. 28, 2015
Statement of Comprehensive Income [Abstract]
Unrealized gain (loss) on marketable securities, tax	$ (45)	$ 38	$ 88
Unrealized gain (loss) on foreign currency hedge, tax	0	0	(36)
Unrealized gain (loss) on pension obligation, tax	$ 74	$ 347	$ (830)

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Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Mar. 04, 2017	Feb. 27, 2016	Feb. 28, 2015
Operating Activities
Net earnings	$ 85,790	$ 65,342	$ 50,516
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	35,607	31,248	29,423
Share-based compensation	6,000	4,900	4,793
Deferred income taxes	(1,065)	(6,139)	4,274
Gain on disposal of assets	(371)	(198)	(933)
Proceeds from new markets tax credit transaction, net of deferred costs	5,109	0	0
Other, net	(2,331)	1,017	229
Changes in operating assets and liabilities:
Receivables	3,460	(2,918)	(18,588)
Inventories	(6,387)	(2,798)	(8,660)
Accounts payable and accrued expenses	17,449	17,265	12,871
Billings in excess of costs and earnings on uncompleted contracts	(9,991)	9,657	(324)
Refundable and accrued income taxes	(9,647)	12,589	(1,091)
Other, net	392	(1,045)	(711)
Net cash provided by operating activities	124,001	128,943	71,799
Investing Activities
Capital expenditures	(68,061)	(42,037)	(27,220)
Purchases of marketable securities	(3,705)	(35,814)	(6,142)
Sales/maturities of marketable securities	36,433	4,047	6,946
Acquisition of business and intangibles	(137,932)	0	0
Change in restricted cash	(7,834)	0	0
Other, net	(2,659)	(4,052)	1,941
Net cash used in investing activities	(183,758)	(77,856)	(24,475)
Financing Activities
Borrowings on line of credit	121,000	0	0
Payments on line of credit	(76,012)	0	0
Payments on debt, net	(396)	(56)	(139)
Shares withheld for taxes, net of stock issued to employees	(446)	(3,254)	(3,905)
Repurchase and retirement of common stock	(10,817)	(24,911)	(6,894)
Dividends paid	(14,667)	(13,184)	(12,071)
Net cash provided by (used in) financing activities	18,662	(41,405)	(23,009)
(Decrease) increase in cash and cash equivalents	(41,095)	9,682	24,315
Effect of exchange rates on cash	88	(1,397)	(595)
Cash and cash equivalents at beginning of year	60,470	52,185	28,465
Cash and cash equivalents at end of period	19,463	60,470	52,185
Noncash Activity
Capital expenditures in accounts payable	$ 3,254	$ 2,737	$ 2,656

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Consolidated Statements Of Shareholders' Equity Statement - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Common Stock Held in Trust	Deferred Compensation Obligation	Accumulated Other Comprehensive (Loss) Income
Balance at Mar. 01, 2014		$ 9,653	$ 130,570	$ 228,841	$ (791)	$ 791	$ (12,960)
Balance, shares at Mar. 01, 2014	28,958
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	$ 50,516			50,516
Unrealized gain (loss) on marketable securities, net of tax	163						163
Unrealized gain (loss) on foreign currency hedge, net of tax	(62)	0	0	0	0	0	(62)
Unrealized gain (loss) on pension obligation, net of tax	(1,458)						(1,458)
Foreign currency translation adjustments	$ (8,003)					0	(8,003)
Issuance of stock, net of cancellations		101	(47)	28	(10)	10
Issuance of stock, net of cancellations, shares	304
Share-based compensation			4,793
Tax benefit (deficit) associated with stock plans			3,293
Exercise of stock options		49	1,190
Exercise of stock options, shares	146
Share repurchases		(68)	(965)	(5,861)
Share repurchases, shares	(203)
Other share retirements		(52)	(259)	(4,915)
Other share retirements, shares	(155)
Cash dividends				(12,071)
Balance at Feb. 28, 2015		9,683	138,575	256,538	(801)	801	(22,320)
Balance, shares at Feb. 28, 2015	29,050
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	$ 65,342			65,342
Unrealized gain (loss) on marketable securities, net of tax	73						73
Unrealized gain (loss) on foreign currency hedge, net of tax	0
Unrealized gain (loss) on pension obligation, net of tax	610						610
Foreign currency translation adjustments	$ (9,734)						(9,734)
Issuance of stock, net of cancellations		34	114		(36)	36
Issuance of stock, net of cancellations, shares	102
Share-based compensation			4,923
Tax benefit (deficit) associated with stock plans			3,856
Exercise of stock options		67	1,539
Exercise of stock options, shares	200
Share repurchases		(192)	(2,996)	(21,723)
Share repurchases, shares	(575)
Other share retirements		(31)	(483)	(4,496)
Other share retirements, shares	(93)
Cash dividends				(13,184)
Balance at Feb. 27, 2016	$ 406,195	9,561	145,528	282,477	(837)	837	(31,371)
Balance, shares at Feb. 27, 2016	28,684
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	$ 85,790			85,790
Unrealized gain (loss) on marketable securities, net of tax	(83)						(83)
Unrealized gain (loss) on foreign currency hedge, net of tax	0
Unrealized gain (loss) on pension obligation, net of tax	130						130
Foreign currency translation adjustments	$ 234						234
Issuance of stock, net of cancellations		47	105	36	(38)	38
Issuance of stock, net of cancellations, shares	140
Share-based compensation			5,986
Tax benefit (deficit) associated with stock plans			(1,745)
Exercise of stock options		54	1,893
Exercise of stock options, shares	163
Share repurchases		83	1,357	9,377	0	0	0
Share repurchases, shares	250
Other share retirements		(19)	(299)	(2,263)
Other share retirements, shares	(57)
Cash dividends				(14,667)
Balance at Mar. 04, 2017	$ 470,577	$ 9,560	$ 150,111	$ 341,996	$ (875)	$ 875	$ (31,090)
Balance, shares at Mar. 04, 2017	28,680

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Consolidated Statements Of Shareholders' Equity (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Mar. 04, 2017	Feb. 27, 2016	Feb. 28, 2015
Statement of Stockholders' Equity [Abstract]
Unrealized gain (loss) on marketable securities, tax	$ (45)	$ 38	$ 88
Unrealized gain (loss) on foreign currency hedge, tax	0	0	(36)
Unrealized gain (loss) on pension obligation, tax	$ 74	$ 347	$ (830)
Cash dividends per share	$ 0.515	$ 0.455	$ 0.41

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Summary of Significant Accounting Policies and Related Data

12 Months Ended

Mar. 04, 2017

Accounting Policies [Abstract]

Summary of Significant Accounting Policies and Related Data

Summary of Significant Accounting Policies and Related Data

Basis of Consolidation. The consolidated financial statements include the balances of Apogee Enterprises, Inc. and its subsidiaries (Apogee, the Company or we) after elimination of intercompany balances and transactions. We consolidate variable interest entities where it has been determined that the Company is the primary beneficiary of those entities' operations.

Fiscal Year. Our fiscal year ends on the Saturday closest to the last day of February, or as determined by the Board of Directors. Fiscal 2017 consisted of 53 weeks, while 2016 and 2015 each consisted of 52 weeks. Our Brazilian subsidiary follows a calendar year-end and is consolidated on a two-month lag. 

Accounting Estimates. The preparation of the consolidated financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts in the consolidated financial statements and accompanying notes. Actual results could differ significantly from those estimates.

Cash Equivalents. Highly liquid investments with an original maturity of three months or less are included in cash equivalents and are stated at cost, which approximates fair value.

Marketable securities. We hold marketable securities classified as available for sale, and we test for other-than-temporary losses on a quarterly basis or whenever events or changes in circumstances indicate that the carrying amount of a security may not be recoverable. We consider all unrealized losses to be temporary in nature. We intend to hold our securities until the full principal amount can be recovered, and we have the ability to do so based on other sources of liquidity. Gross realized gains and losses are included in other income (expense), net in our consolidated results of operations.

Inventories. Inventories, which consist primarily of purchased glass and aluminum, are valued at lower of cost or market using the first-in, first-out (FIFO) method.

Property, Plant and Equipment. Property, plant and equipment (PP&E) is recorded at cost. Significant improvements and renewals that extend the useful life of the asset are capitalized. Repairs and maintenance are charged to expense as incurred. When an asset is retired or otherwise disposed of, the cost and related accumulated depreciation are removed from the accounts and any related gains or losses are included in selling, general and administrative expenses. Long-lived assets to be held and used, such as PP&E, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable.

Depreciation is computed on a straight-line basis, based on the following estimated useful lives:

	Years
Buildings and improvements	15 to 25
Machinery and equipment	3 to 15
Office equipment and furniture	3 to 10

Goodwill and Intangible Assets. Goodwill represents the excess of the cost over the net tangible and identified intangible assets of acquired businesses. We evaluate goodwill for impairment annually at our year-end, or more frequently if impairment indicators exist. We have eight business units, each of which represents a reporting unit for the goodwill impairment analysis. This year we elected first to perform a qualitative assessment to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount (commonly referred to as “step 0”). For certain of our reporting units, we also completed step 1 of the goodwill assessment process, which compares the fair value of each of our reporting units to carrying value, including goodwill. If the fair value exceeds the carrying value, goodwill impairment is not indicated. In all periods presented, we have followed a consistent discounted cash flow methodology in our step one evaluation of goodwill for impairment. Based on our analysis, we concluded that it was not more likely than not that the fair value of any reporting unit was less than carrying amount.

Intangible assets with defined useful lives are amortized based on estimated useful lives ranging from 18 months to 20 years and are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. Intangible assets with an indefinite useful life are tested for impairment annually at our year-end, or more frequently if events or changes in circumstances indicate that it is more likely than not that the asset is impaired. The estimated useful lives of all intangible assets are reviewed annually, and we have determined that the remaining lives were appropriate.

Self-Insurance. We obtain commercial insurance for potential losses for general liability, employment practices, workers' compensation, automobile liability, architect's and engineer's errors and omissions risk, product rework and other miscellaneous coverages. A substantial portion of this risk is retained on a self-insured basis through our wholly-owned insurance subsidiary. We establish a reserve for estimated ultimate losses on reported claims and those incurred but not yet reported utilizing actuarial projections. Reserves are classified within accrued or long-term self-insurance reserves based on expectations of when the estimated loss will be paid.

Additionally, we maintain a self-insurance reserve for health insurance programs offered to eligible employees, included within accrued self-insurance reserves. The reserve includes an estimate for losses on reported claims as well as for amounts incurred but not yet reported, based on historical trends.

Warranty. We are subject to claims associated with our products and services, principally as a result of disputes with our customers involving the performance or aesthetics of our architectural products and services. We reserve estimated exposures on known claims, as well as on a portion of anticipated claims for product warranty and rework costs, based on historical product liability claims as a ratio of sales. Our warranty reserves are included in other current and non-current liabilities, based on the estimated timing of dispute resolution.

Environmental Liability. We recognize environmental clean-up liabilities on an undiscounted basis when loss is probable and can be reasonably estimated based on estimates by specialists and applicable law. Such estimates are based primarily on the estimated cost of investigation and remediation required, and the likelihood that, where applicable, other potentially responsible parties will not be able to fulfill their commitments at the sites where the Company may be jointly and severally liable. The reserve for environmental liabilities is included in other current and non-current liabilities in the consolidated balance sheets.

Foreign Currency. The financial statements of subsidiaries located outside of the U.S. are measured in their functional currency, which is local currency. Assets and liabilities of these subsidiaries are translated at the exchange rates at the balance sheet date. Income and expense items are translated using average monthly exchange rates. Translation adjustments are included in accumulated other comprehensive loss in the consolidated balance sheets.

Revenue Recognition. We recognize revenue when title has transferred, except within our Architectural Services segment and for one business within our Architectural Framing Systems segment, which enter into fixed-price contracts for projects typically performed over a 12- to 24-month timeframe. We record revenue for these contracts on a percentage-of-completion basis as we are able to reasonably estimate total contract revenue and total contract costs. We compare the total costs incurred to date to the total estimated costs for the contract, and record that proportion of the total contract revenue in the period. Contract costs include materials, labor and other direct costs related to contract performance. We believe utilizing the cost-to-cost method for revenue recognition provides the greatest degree of accuracy in measuring revenue throughout the contract period. Provisions are established for estimated losses, if any, on uncompleted contracts in the period in which such losses are determined. Amounts representing contract change orders, claims or other items are included in contract revenue only upon customer approval. Approximately 26 percent of our consolidated net sales in fiscal 2017, and 25 percent in each of fiscal 2016 and 2015, were recorded on a percentage-of-completion basis.

Revenue excludes sales taxes as the Company considers itself a pass-through conduit for collecting and remitting sales taxes.

Pricing and Sales Incentives. The Company records estimated reductions to revenue for customer programs and incentive offerings, including pricing arrangements, promotions and other volume-based incentives, at the later of the date revenue is recognized or the incentive is offered. Sales incentives given to customers are recorded as a reduction to net sales unless (1) the Company receives an identifiable benefit for goods or services in exchange for the consideration, and (2) the Company can reasonably estimate the fair value of the benefit received.

Shipping and Handling. All amounts billed to a customer in a sales transaction related to shipping and handling represent revenues earned and are reported as revenue. Costs incurred by the Company for shipping and handling are reported as cost of sales.

Research and Development. Research and development costs are expensed as incurred within selling, general and administrative expenses, and were $8.6 million, $8.0 million and $6.5 million for fiscal 2017, 2016 and 2015, respectively. Of these amounts, $2.2 million, $2.4 million and $2.4 million, respectively, were focused primarily upon design of custom window and curtainwall systems in accordance with customer specifications and are included in cost of sales.

Advertising. Advertising costs are expensed as incurred and were $1.1 million in fiscal 2017, $1.2 million in fiscal 2016, and $1.1 million in fiscal 2015, and they are included in selling, general and administrative expenses.

Income Taxes. The Company recognizes deferred tax assets and liabilities based upon the future tax consequences of temporary differences between financial statement carrying amounts of assets and liabilities and their respective tax bases. See Note 14 for additional information regarding income taxes.

Subsequent Events. We have evaluated subsequent events for potential recognition and disclosure through the date of this filing and determined that there were no subsequent events that required recognition or disclosure in the consolidated financial statements.

New Accounting Standards.In March 2016, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2016-09, Improvements to Employee Share-Based Payment Accounting, which simplifies several aspects of the accounting and reporting for employee share-based payment transactions. The new standard requires excess tax benefits and tax deficiencies to be recorded in the statements of income as a component of the provision for income taxes when stock awards vest or are settled. In addition, it eliminates the requirement to reclassify cash flows related to excess tax benefits from operating activities to financing activities on the consolidated statements of cash flows. We elected to early adopt the new guidance in the fourth quarter of fiscal 2017, with the following impacts to our consolidated financial statements:

• Differences between the accounting expense and the tax deduction for share-based compensation (excess tax benefits or deficits) are now recognized in the income statement within income taxes upon vesting or settlement of the award and are treated as discrete tax items impacting our effective tax rate in the period of settlement. Previously, these differences were recognized within additional paid-in capital. Net tax benefits related to share-based compensation awards of $0.9 million for the year were recognized in the fourth quarter as a reduction of income tax expense in the consolidated statements of operations. The impact of this change to prior interim reporting periods in fiscal 2017 was not material.

• The excess tax benefits from share-based compensation are included within the income taxes line as part of operating activities in the statement of cash flows, and are no longer included as a financing activity. This change is applied retrospectively.

The standard allows for an accounting policy election to continue to account for forfeitures as an estimate or to account for forfeitures as they occur. We elect to recognize forfeitures of any share-based awards as they occur.

In November 2015, the FASB issued ASU 2015-17, Balance Sheet Classification of Deferred Taxes, which requires all deferred tax assets and liabilities, along with any related valuation allowance, to be classified as noncurrent on the balance sheet. We early adopted this standard in the first quarter of the current fiscal year, and prior periods were not retrospectively adjusted. The adoption of this standard did not have a significant impact to our consolidated financial statements in any period presented.

In January 2017, the FASB issued ASU 2017-04, Simplifying the Test for Goodwill Impairment, which simplifies the accounting for goodwill impairment by requiring impairment charges to be based on the first step in the current two-step impairment test process. The new guidance eliminates the current requirement to calculate a goodwill impairment charge using step 2. The standard is applicable to impairment tests performed in periods beginning after December 15, 2019, with early adoption permitted. We are currently evaluating early adoption of this guidance for our future annual goodwill impairment review process.

In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows, and in November 2016, it issued 2016-18, Restricted Cash. Both standards provide guidance for presentation of certain topics within the statement of cash flows, including presenting restricted cash within cash and cash equivalents, and are intended to improve consistency in presentation. The new classification guidance is effective for fiscal years beginning after December 15, 2017, our fiscal year 2019, and is to be applied retrospectively for comparability across all periods. These standards may be adopted early, and we are considering the timing of adoption but we do not expect this guidance to have a significant impact on our consolidated financial statements.

In February 2016, the FASB issued ASU 2016-02, Leases, which provides for a comprehensive change to lease accounting. The new standard requires that a lessee recognize a lease obligation liability and a right to use asset for virtually all leases of property, plant and equipment, subsequently amortized over the lease term. The new standard is effective for fiscal years beginning after December 15, 2018, with a modified retrospective transition. We are currently evaluating whether we will early adopt this standard in our fiscal year 2019 to align with the adoption of the new revenue recognition standard discussed below. The adoption of this standard will result in reflecting assets and liabilities for the value of our leased property and equipment on our consolidated balance sheet but it is not expected to have a significant impact on our consolidated results of operations.

In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers, which outlines a single comprehensive model to use in accounting for revenue arising from contracts with customers and supersedes most current revenue recognition guidance. Under the new standard, an entity recognizes revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. This guidance is effective for annual reporting periods beginning after December 15, 2017, our fiscal 2019. We are in the process of fully evaluating the impact this standard will have on our financial statements. However, at this time we have determined the following:

• The standard allows a full retrospective or modified retrospective transition method. We plan to adopt the new guidance following the full retrospective method.

• We expect to have business units that will continue to recognize revenue at the point in time when goods are shipped, as that represents when control is transferred, and business units that will continue to recognize revenue over time, following a cost-to-cost percentage of completion method of revenue recognition. Additionally, we expect that one of our business units in the Architectural Framing Systems segment will change from recognizing revenue at a point in time to recognizing revenue over time to better reflect transfer of control to the customer in line with the new guidance. This business unit will follow a similar cost-to-cost percentage of completion method of revenue recognition, consistent with our other business units using percentage of completion.

• In the coming months, we will undertake a process to quantify the impact of the new accounting guidance on each of the relevant fiscal years and will provide further analysis and discussion as we progress in the evaluation process.

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Acquisitions

12 Months Ended

Mar. 04, 2017

Business Combinations [Abstract]

Acquisition

Acquisition

On December 14, 2016, we acquired substantially all the assets of Sotawall, Inc. (now operating under the name Sotawall Limited or "Sotawall") a privately-held company based in the Toronto, Canada area, for approximately $138 million, funded by existing cash and short-term investments of approximately $73 million and by approximately $65 million from our committed revolving line of credit. Sotawall specializes in the design, engineering, fabrication, assembly and installation of unitized curtainwall systems for industrial, commercial and institutional buildings, primarily serving the Canadian and northeastern U.S. geographic regions. Sotawall's results of operations have been included in the consolidated financial statements and within the Architectural Framing Systems segment since the date of acquisition. Those results include $17.8 million of sales, $0.7 million of operating income and de minimis net earnings.

The assets and liabilities of Sotawall were recorded in the consolidated balance sheet and within the Architectural Framing Systems segment as of the acquisition date, at their respective fair values. Fair value is estimated based on one or a combination of income, cost and/or market approaches, as determined based on the nature of the asset or liability, and the level of inputs available. With respect to assets and liabilities, the determination of fair value requires management to make subjective judgments as to projections of future operating performance, the appropriate discount rate to apply, long-term growth rates, etc. (i.e. - unobservable inputs classified as Level 3 inputs under the fair value hierarchy described in Note 5) which affect the amounts recorded in the purchase price allocation. The excess of the consideration transferred over the fair value of the identifiable assets, net of liabilities, is recorded as goodwill, which is indicative of the expected continued growth and development of Sotawall. The purchase price allocation is based on these estimated fair value of assets acquired and liabilities assumed, as follows:

(In thousands)	December 14, 2016
Net working capital	$	10,682
Property, plant and equipment	7,993
Goodwill	27,444
Other intangible assets	91,813
Net assets acquired	$	137,932

Other intangible assets reflect the following:

(In thousands)	Estimated fair value		Estimated useful life (in years)
Technology	$	6,319	10.0
Tradename	12,333		Indefinite
Backlog	12,638		1.5
Customer relationships	60,523		17.0
Total other intangible assets	$	91,813

These fair values are based on preliminary estimates and are subject to change based on finalization of net working capital values, intangible asset valuation and other purchase price adjustments expected to be completed in the first quarter of fiscal 2018. Up to 75 percent of the goodwill is tax deductible. Refer to Note 7 for more information on goodwill and intangible assets.

The following unaudited pro forma information provides the results of operations for the fiscal years ended March 4, 2017 and February 27, 2016, as if the acquisition had been completed at the beginning of fiscal year 2016:

	Pro Forma
(In thousands, except per share data)	2017		2016
Net sales	$	1,196,504	$	1,054,281
Net earnings	100,124		66,203
Earnings per share
Basic	$	3.48	$	2.28
Diluted	$	3.47	$	2.25

Unaudited pro forma information has been provided for comparative purposes only and the information does not necessarily reflect what the combined company's results of operations would have been had the acquisition occurred at the beginning of fiscal year 2016. It also may not be useful in predicting the future results of operations of the combined company. The pro forma information includes the impact of intangible asset amortization of approximately $12.7 million in 2016 and $8.2 million in 2017 (based on historical average exchange rates), which is expected to be recognized in Apogee's results for fiscal 2018 and fiscal 2019, respectively. The information also reflects the pro forma cost of required debt financing but does not reflect the effect of any synergies or integration costs that may result from the acquisition.

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Working Capital

12 Months Ended

Mar. 04, 2017

Working Capital [Abstract]

Working Capital

Working Capital

Receivables

(In thousands)	2017			2016
Trade accounts	$	122,149		$	102,627
Construction contracts	31,923			41,631
Contract retainage	29,191			28,249
Other receivables	3,972			2,822
Total receivables	187,235			175,329
Less allowance for doubtful accounts	(1,495		)	(2,497		)
Net receivables	$	185,740		$	172,832

Inventories

(In thousands)	2017		2016
Raw materials	$	22,761	$	21,404
Work-in-process	16,154		9,958
Finished goods	29,372		25,486
Costs and earnings in excess of billings on uncompleted contracts	5,122		6,538
Total inventories	$	73,409	$	63,386

Other Current Liabilities

(In thousands)	2017		2016
Warranties	$	21,100	$	14,666
Taxes, other than income taxes	4,452		5,058
Other	8,648		9,615
Total other current liabilities	$	34,200	$	29,339

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Marketable Securities

12 Months Ended

Mar. 04, 2017

Marketable Securities [Abstract]

Marketable Securities

Marketable Securities

We hold the following marketable securities, all classified as available for sale:

(In thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
March 4, 2017
Municipal bonds	$	9,595	$	91	$	(97	)	$	9,589
Total marketable securities	$	9,595	$	91	$	(97	)	$	9,589
February 27, 2016
Mutual fund	$	30,178	$	—	$	(55	)	$	30,123
Municipal bonds	12,393		285		(109		)	12,569
Total marketable securities	$	42,571	$	285	$	(164	)	$	42,692

In the prior year, we were invested in a mutual fund holding short-term government securities as a means of deploying excess cash from operations while preserving liquidity. We sold this security in fiscal 2017 to partially finance the Sotawall acquisition.

We have a wholly-owned insurance subsidiary, Prism Assurance, Ltd. (Prism), which holds our municipal bonds. Prism insures a portion of our general liability, workers' compensation and automobile liability risks using reinsurance agreements to meet statutory requirements. The reinsurance carrier requires Prism to maintain fixed-maturity investments, which are generally high-quality municipal bonds, for the purpose of providing collateral for Prism's obligations under the reinsurance agreement.

The following table presents the length of time that our securities were in continuous unrealized loss positions, but were not deemed to be other than temporarily impaired, as of March 4, 2017:

	Less Than 12 Months					Greater Than or Equal  to 12 Months					Total
(In thousands)	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
Municipal bonds	$	1,413	$	(14	)	$	1,167	$	(83	)	$	2,580	$	(97	)

The amortized cost and estimated fair values of our municipal bonds at March 4, 2017, by contractual maturity, are shown below. Expected maturities may differ from contractual maturities, as borrowers may have the right to call or prepay obligations with or without penalty. Gross realized gains and losses were insignificant for all periods presented.

(In thousands)	Amortized Cost		Estimated Market Value
Due within one year	$	548	$	548
Due after one year through five years	3,003		3,028
Due after five years through 10 years	4,553		4,605
Due after 10 years through 15 years	1,491		1,408
Total	$	9,595	$	9,589

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Fair Value Measurements

12 Months Ended

Mar. 04, 2017

Fair Value Disclosures [Abstract]

Fair Value Measurements

Fair Value Measurements

Financial assets and liabilities are classified in the fair value hierarchy based on the lowest level input that is significant to the fair value measurement: Level 1 (unadjusted quoted prices in active markets for identical assets or liabilities); Level 2 (observable market inputs, other than quoted prices included in Level 1); and Level 3 (unobservable inputs that cannot be corroborated by observable market data). We do not have any Level 3 assets or liabilities.

Financial assets and liabilities measured at fair value on a recurring basis were:

(In thousands)	Quoted Prices in Active Markets (Level 1)		Other Observable Inputs (Level 2)		Total Fair Value
March 4, 2017
Cash equivalents
Money market funds	$	4,423	$	—	$	4,423
Commercial paper	—		5,500		5,500
Total cash equivalents	4,423		5,500		9,923
Short-term securities
Municipal bonds	—		548		548
Long-term securities
Municipal bonds	—		$	9,041	9,041
Total assets at fair value	$	4,423	$	15,089	$	19,512
February 27, 2016
Cash equivalents
Money market funds	$	23,199	$	—	$	23,199
Commercial paper	—		29,774		29,774
Total cash equivalents	23,199		29,774		52,973
Short-term securities
Mutual fund	30,123		—		30,123
Municipal bonds	—		50		50
Total short-term securities	30,123		50		30,173
Long-term securities
Municipal bonds	—		12,519		12,519
Total assets at fair value	$	53,322	$	42,343	$	95,665

Cash equivalents

Fair value of money market funds was determined based on quoted prices for identical assets in active markets. Commercial paper was measured at fair value using inputs based on quoted prices for similar securities in active markets.

Short- and long-term securities

Municipal bonds were measured at fair value based on market prices from recent trades of similar securities and are classified as short-term or long-term based on maturity date. Mutual funds were measured at fair value based on quoted prices for identical assets in active markets.

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Property, Plant and Equipment

12 Months Ended

Mar. 04, 2017

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

Property, Plant and Equipment

(In thousands)	2017			2016
Land	$	8,400		$	8,827
Buildings and improvements	162,184			149,685
Machinery and equipment	316,406			296,388
Office equipment and furniture	49,720			48,805
Construction in progress	46,544			18,384
Total property, plant and equipment	583,254			522,089
Less accumulated depreciation	(336,506		)	(319,627		)
Net property, plant and equipment	$	246,748		$	202,462

Depreciation expense was $31.6 million, $29.8 million and $27.5 million in fiscal 2017, 2016 and 2015, respectively.

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Goodwill and Other Identifiable Intangible Assets

12 Months Ended

Mar. 04, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Other Identifiable Intangible Assets

Goodwill and Other Intangible Assets

The carrying amount of goodwill attributable to each reporting segment was:

(In thousands)	Architectural Glass			Architectural Services		Architectural Framing Systems			Large-Scale Optical		Total
Balance at February 28, 2015	$	26,355		$	1,120	$	37,825		$	10,557	$	75,857
Foreign currency translation	(716		)	—		(1,145		)	—		(1,861		)
Balance at February 27, 2016	25,639			1,120		36,680			10,557		73,996
Goodwill acquired	—			—		27,444			—		27,444
Foreign currency translation	317			—		(423		)	—		(106		)
Balance at March 4, 2017	$	25,956		$	1,120	$	63,701		$	10,557	$	101,334

No goodwill impairment has been recorded in any period presented.

The gross carrying amount of other intangible assets and related accumulated amortization was:

(In thousands)	Gross Carrying Amount		Accumulated Amortization			Foreign Currency Translation			Net
March 4, 2017
Definite-lived intangible assets
Debt issue costs	$	4,066	$	(2,960	)	$	—		$	1,106
Non-compete agreements	6,286		(6,025		)	(65		)	196
Customer relationships	82,479		(14,013		)	(145		)	68,321
Trademarks and other intangibles	25,950		(4,917		)	(31		)	21,002
Total definite-lived intangible assets	118,781		(27,915		)	(241		)	90,625
Indefinite-lived intangible assets
Trademarks	16,022		—			39			16,061
Total intangible assets	$	134,803	$	(27,915	)	$	(202	)	$	106,686
February 27, 2016
Definite-lived intangible assets
Debt issue costs	$	3,677	$	(2,758	)	$	—		$	919
Non-compete agreements	6,673		(6,419		)	(16		)	238
Customer relationships	24,174		(12,737		)	(1,162		)	10,275
Trademarks and other intangibles	8,213		(3,271		)	(431		)	4,511
Total definite-lived intangible assets	42,737		(25,185		)	(1,609		)	15,943
Indefinite-lived intangible assets
Trademarks	4,239		—			(320		)	3,919
Total intangible assets	$	46,976	$	(25,185	)	$	(1,929	)	$	19,862

Amortization expense on definite-lived intangible assets was $4.0 million, $1.6 million and $2.1 million in fiscal 2017, 2016 and 2015, respectively. The amortization expense associated with the debt issue costs is included in interest expense while the remainder is in selling, general and administrative expenses in the consolidated results of operations. Estimated future amortization expense for definite-lived intangible assets is as follows:

(In thousands)	2018		2019		2020		2021		2022
Estimated amortization expense	$	14,157	$	7,918	$	5,592	$	5,479	$	5,372

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Debt

12 Months Ended

Mar. 04, 2017

Debt Disclosure [Abstract]

Debt

Debt

In December 2016, we amended and restated the credit agreement governing our credit facility to, among other changes, increase the amount of the revolving credit facility to $175.0 million, extend the maturity date to November 2021 and to modify the financial covenants under the credit agreement. We had $45.0 million outstanding on our revolving credit facility as of March 4, 2017 and no borrowings outstanding as of February 27, 2016. As defined within our facility, we have two financial covenants that require us to stay below a maximum debt-to-EBITDA ratio and maintain a minimum ratio of interest expense-to-EBITDA. Both ratios are computed quarterly, with EBITDA calculated on a rolling four-quarter basis. If the Company is not in compliance with either of these covenants, our credit facility may be terminated and/or any amounts then outstanding may be declared immediately due and payable. At March 4, 2017, we were in compliance with both financial covenants. We have the ability to issue letters of credit of up to $70.0 million under this credit facility, the outstanding amounts of which decrease the available commitment. At March 4, 2017, $106.5 million was available under this credit facility.

Debt at March 4, 2017 also included $20.4 million of industrial revenue bonds that mature in fiscal years 2021 through 2043. The fair value of the industrial revenue bonds approximated carrying value at March 4, 2017, due to the variable interest rates on these instruments. The bonds would be classified as Level 2 within the fair value hierarchy described in Note 5.

We also maintain a $4.0 million Canadian dollar revolving demand facility. No borrowings were outstanding under the facility as of March 4, 2017 or February 27, 2016. Borrowings under the facility are made available at the sole discretion of the lender and are payable on demand, with interest at rates specified in the credit agreement for the demand facility.

Debt maturities and other selected information follows:

(In thousands)	2018	2019	2020	2021	2022	Thereafter	Total
Maturities	$—	$—	$—	$5,400	$47,000	$13,000	$	65,400

(In thousands, except percentages)	2017			2016
Average daily borrowings during the year	$	34,320		$	21,730
Maximum borrowings outstanding during the year	91,400			22,480
Weighted average interest rate during the year	2.22		%	0.29		%

(In thousands)	2017		2016		2015
Interest on debt	$	971	$	544	$	581
Other interest expense	—		49		343
Interest expense	$	971	$	593	$	924

Interest payments were $0.8 million in fiscal 2017, $0.5 million in fiscal 2016 and $0.8 million in fiscal 2015.

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Other Non-Current Liabilities

12 Months Ended

Mar. 04, 2017

Other Liabilities Disclosure [Abstract]

Other Non-Current Liabilities

Other Non-Current Liabilities

(In thousands)	2017		2016
Deferred benefit from New Markets Tax Credit transactions	$	16,708	$	10,741
Retirement plan obligations	9,635		9,992
Deferred compensation plan	7,463		4,814
Other	11,981		11,367
Total other non-current liabilities	$	45,787	$	36,914

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Employee Benefit Plans

12 Months Ended

Mar. 04, 2017

Compensation and Retirement Disclosure [Abstract]

Employee Benefit Plans

Employee Benefit Plans

401(k) Retirement Plan

The Company sponsors a single 401(k) retirement plan covering substantially all full-time, non-union employees, as well as union employees at two of its manufacturing facilities. Under the plan, employees are allowed to contribute up to 60 percent of eligible earnings to the plan, up to statutory limits. The Company contributes a match of 100 percent of the first one percent contributed and 50 percent of the next five percent contributed on eligible compensation that non-union employees contribute and according to contract terms for union employees. The Company match was $6.2 million in fiscal 2017, $5.4 million in fiscal 2016 and $4.7 million in fiscal 2015.

Deferred Compensation Plan

The Company maintains a plan that allows participants to defer compensation. The deferred compensation liability was $7.7 million and $5.0 million at March 4, 2017 and February 27, 2016, respectively. The Company has investments in corporate-owned life insurance policies (COLI) of $7.7 million and money market funds (classified as cash equivalents) of $0.3 million with the intention of utilizing them as long-term funding sources for this plan. The COLI assets are recorded at their net cash surrender values and are included in other non-current assets in the consolidated balance sheet.

Plans under Collective Bargaining Agreements

We contribute to various multi-employer union retirement plans, which provide retirement benefits to the majority of our union employees; none of the plans are considered significant. The total contribution to these plans in fiscal 2017, 2016 and 2015 was $3.9 million, $3.6 million and $4.3 million, respectively.

Pension Plan

The Company sponsors the Tubelite Inc. Hourly Employees' Pension Plan (Tubelite Plan), a defined-benefit pension plan that was frozen to new entrants in fiscal 2004, with no additional benefits accruing to plan participants after such time.

Officers' Supplemental Executive Retirement Plan (SERP)

The Company sponsors an unfunded SERP for the benefit of certain executives, a defined-benefit pension plan that was frozen to new entrants in fiscal 2009, with no additional benefits accruing to plan participants after such time.

Obligations and Funded Status of Defined-Benefit Pension Plans

The following tables present reconciliations of the benefit obligation of the defined-benefit pension plans and the funded status of the defined-benefit pension plans. The Tubelite plan uses a measurement date as of the calendar month-end closest to our fiscal year-end, while the SERP uses a measurement date aligned with our fiscal year-end.

(In thousands)	2017			2016
Change in projected benefit obligation
Benefit obligation beginning of period	$	14,900		$	16,253
Interest cost	555			566
Actuarial loss (gain)	54			(907		)
Benefits paid	(1,017		)	(1,012		)
Benefit obligation at measurement date	14,492			14,900
Change in plan assets
Fair value of plan assets beginning of period	$	4,261		$	4,419
Actual return on plan assets	73			(62		)
Company contributions	868			916
Benefits paid	(1,017		)	(1,012		)
Fair value of plan assets at measurement date	4,185			4,261
Underfunded status	$	(10,307	)	$	(10,639	)

The underfunded status of our plans was recognized in the consolidated balance sheets:

(In thousands)	2017			2016
Current liabilities	$	(672	)	$	(647	)
Other non-current liabilities	(9,635		)	(9,992		)
Total	$	(10,307	)	$	(10,639	)

The following was included in accumulated other comprehensive loss and has not yet been recognized as a component of net periodic benefit cost:

(In thousands)	2017		2016
Net actuarial loss	$	5,696	$	5,899
Accumulated other comprehensive loss	$	5,696	$	5,899

The amount recognized in comprehensive earnings, net of tax expense, was:

(In thousands)	2017			2016
Net actuarial gain	$	(130	)	$	(610	)
Total	$	(130	)	$	(610	)

Components of the defined-benefit pension plans' net periodic benefit cost:

(In thousands)	2017			2016			2015
Interest cost	$	555		$	566		$	550
Expected return on assets	(41		)	(137		)	(171		)
Amortization of unrecognized net loss	225			249			172
Net periodic benefit cost	$	739		$	678		$	551

Total net periodic pension benefit cost is expected to be approximately $0.7 million in fiscal 2018. The estimated net actuarial loss for the defined-benefit pension plans that will be amortized from accumulated other comprehensive loss into net periodic benefit cost for fiscal 2018 is $0.2 million, net of tax benefit.

Additional Information

Assumptions

Benefit Obligation Weighted-Average Assumptions	2017		2016		2015
Discount rate	3.80	%	3.85	%	3.60	%

Net Periodic Benefit Expense Weighted-Average Assumptions	2017		2016		2015
Discount rate	3.85	%	3.60	%	4.00	%
Expected long-term rate of return on assets	2.00	%	2.00	%	4.50	%

Discount rate. The discount rate reflects the current rate at which the defined-benefit plans' pension liabilities could be effectively settled at the end of the year based on the measurement date. The discount rate was determined by matching the expected benefit payments to payments from the Principal Discount Yield Curve. There are no known or anticipated changes in the discount rate assumption that will have a significant impact on pension expense in fiscal 2018.

Expected return on assets. To develop the expected long-term rate of return on assets, we considered historical long-term rates of return achieved by the plan investments, the plan's investment strategy, and current and projected market conditions.

In accordance with its policy, during fiscal 2016, the assets of the Tubelite plan were invested in a short-term bond fund and carried at fair value based on prices from recent trades of similar securities, which would be classified as Level 2 in the valuation hierarchy. Prior to this strategy change, the assets were invested in a long-term bond fund.

We do not maintain assets intended for the future use of the SERP.

Contributions

Contributions to the plans for each of fiscal 2017 and 2016 totaled $0.9 million, which equaled or exceeded the minimum funding requirement.

Estimated Future Benefit Payments

The following benefit payments, which reflect expected future service, are expected to be paid by the plans:

(In thousands)	2018		2019		2020		2021		2022		2023-2027
Estimated future benefit payments	$	1,016	$	1,052	$	1,026	$	1,009	$	984	$	4,602

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Commitments and Contingent Liabilities

12 Months Ended

Mar. 04, 2017

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingent Liabilities

Commitments and Contingent Liabilities

Operating lease commitments. As of March 4, 2017, the Company was obligated under non-cancelable operating leases for buildings and equipment. Certain leases provide for increased rentals based upon increases in real estate taxes or operating costs. As part of our acquisition of Sotawall, we acquired leases to two properties which hold Sotawall's current principal facilities. The lessor under these leases is a company owned by the President of Sotawall. Future minimum rental payments under non-cancelable operating leases are:

(In thousands)	2018		2019		2020		2021		2022		Thereafter		Total
Total minimum payments	$	11,419	$	10,796	$	9,286	$	6,342	$	5,605	$	9,002	$	52,450

Total rental expense, including operating leases and short-term equipment rentals, was $16.9 million, $15.5 million and $18.7 million in fiscal 2017, 2016 and 2015, respectively.

At March 4, 2017, we had one sale and leaseback agreement for equipment that provides an option to purchase the equipment at projected future fair market value upon expiration of the lease in 2021. The lease is classified as an operating lease in accordance with applicable financial accounting standards. The Company has a deferred gain of $1.8 million under the sale and leaseback transaction, which is included in the balance sheet as other current and non-current liabilities. The average annual lease payment over the remaining life of the lease is $1.0 million.

Bond commitments. In the ordinary course of business, predominantly in the Company’s Architectural Services segment, the Company is required to provide surety or performance bonds that commit payments to its customers for any non-performance. At March 4, 2017, $96.2 million of the Company’s backlog was bonded by performance bonds with a face value of $343.7 million. Performance bonds do not have stated expiration dates, as the Company is released from the bonds upon completion of the contract. The Company has never been required to make any payments related to these performance-based bonds with respect to any of its current portfolio of businesses.

Warranties. We reserve estimated exposures on known claims, as well as on a portion of anticipated claims for product warranty and rework costs based on historical product liability claims as a ratio of sales. Claims are deducted from the accrual when paid. Factors that could have an impact on the warranty accrual in any given period include the following: changes in manufacturing quality, shifts in product mix and any significant changes in sales volume. A warranty rollforward follows:

(In thousands)	2017			2016
Balance at beginning of period	$	16,340		$	11,275
Additional accruals	11,499			8,214
Claims paid	(5,906		)	(3,149		)
Balance at end of period	$	21,933		$	16,340

Letters of credit. At March 4, 2017, we had ongoing letters of credit related to construction contracts and certain industrial revenue bonds. The total value of letters of credit under which we were obligated as of March 4, 2017 was approximately $23.5 million, all of which have been issued under our credit facility. Our total availability under our $175.0 million credit facility is reduced by borrowings under the credit facility and also by letters of credit issued under the credit facility.

Purchase obligations. Purchase obligations for raw material commitments and capital expenditures totaled $115.8 million as of March 4, 2017.

Environmental liability. In fiscal 2008, we acquired one manufacturing facility which has certain historical environmental conditions. We are working to remediate these conditions; remediation has been conducted without significant disruption to our operations. Our liability for these remediation activities was $1.4 million and $1.6 million at March 4, 2017 and February 27, 2016, respectively.

New Markets Tax Credit transactions. In June 2016, we entered into a transaction with a subsidiary of Wells Fargo (WF) under a qualified New Markets Tax Credit (NMTC) program related to an investment in plant and equipment within our Architectural Glass segment. Previously, in fiscal 2014, we entered into a NMTC transaction with JP Morgan Chase (JPM) related to a separate investment in plant and equipment within the Architectural Glass segment. Each NMTC transaction is subject to 100 percent tax credit recapture for a period of seven years. Therefore, proceeds received in exchange for the transfer of the tax credits will be recognized as earnings in fiscal 2021 and 2024, if the expected tax benefits are delivered without risk of recapture to each bank and our performance obligations are relieved.

In exchange for substantially all the benefits derived from tax credits, WF contributed $6.0 million and JPM contributed $10.7 million into each respective project. These amounts are included within other non-current liabilities on our consolidated balance sheets. Direct and incremental costs incurred in structuring these arrangements have been deferred and will be recognized in proportion to the recognition of the related profits. These costs amounted to $4.5 million and are included in other non-current assets on our consolidated balance sheets. Variable-interest entities were created as a result of the structure of these transactions, which have been included within our consolidated financial statements as the banks do not have a material interest in the underlying economics of the projects.

Litigation. The Company is a party to various legal proceedings incidental to its normal operating activities. In particular, like others in the construction supply and services industry, the Company’s construction supply and services businesses are routinely involved in various disputes and claims arising out of construction projects, sometimes involving significant monetary damages or product replacement. The Company is subject to litigation arising out of general liability, employment practices, workers' compensation and automobile claims. Although it is very difficult to accurately predict the outcome of such proceedings, facts currently available indicate that no such claims will result in losses that would have a material adverse effect on the results of operations, cash flows or financial condition of the Company.

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Shareholders' Equity

12 Months Ended

Mar. 04, 2017

Equity [Abstract]

Stockholders' Equity

Shareholders' Equity

A class of 200,000 shares of junior preferred stock with a par value of $1.00 is authorized, but unissued.

Share Repurchases

During fiscal 2004, the Board of Directors authorized a share repurchase program of 1,500,000 shares of common stock. The Board of Directors subsequently increased this authorization by 750,000 shares in fiscal 2008; by 1,000,000 shares in fiscal 2009; and by another 1,000,000 shares in fiscal 2016. We repurchased 250,001 shares under the program during fiscal 2017, for a total cost of $10.8 million. We repurchased 575,000 shares under the program, for a total cost of $24.9 million, in fiscal 2016 and 203,509 shares under the program, for a total cost of $6.9 million, in fiscal 2015. The Company has repurchased a total of 3,307,633 shares, at a total cost of $72.3 million, since the inception of this program. We have remaining authority to repurchase 942,367 shares under this program, which has no expiration date.

In addition to the shares repurchased under this repurchase plan, during fiscal 2017, 2016 and 2015, the Company also withheld $2.6 million, $5.1 million and $5.2 million, respectively, of Company stock from employees in order to satisfy stock-for-stock option exercises or tax obligations related to stock-based compensation, pursuant to terms of board and shareholder-approved compensation plans.

Accumulated Other Comprehensive Loss

The following summarizes the accumulated other comprehensive loss, net of tax, at March 4, 2017 and February 27, 2016:

(In thousands)	2017			2016
Net unrealized (loss) gain on marketable securities	$	(4	)	$	79
Pension liability adjustments	(3,628		)	(3,758		)
Foreign currency translation adjustments	(27,458		)	(27,692		)
Total accumulated other comprehensive loss	$	(31,090	)	$	(31,371	)

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Stock-Based Compensation

12 Months Ended

Mar. 04, 2017

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock-Based Compensation

Share-Based Compensation

We have a 2009 Stock Incentive Plan and a 2009 Non-Employee Director Stock Incentive Plan (the Plans) which provide for the issuance of 1,888,000 and 350,000 shares, respectively, for various forms of stock-based compensation to employees and non-employee directors. Awards under these Plans may be in the form of incentive stock options (to employees only), nonstatutory options or stock-settled stock appreciation rights (SARs) and are granted with an exercise price equal to the fair market value of the Company’s stock at the date of award. We also issue nonvested share awards and nonvested share unit awards under the Plans. Issued SARs vest over a three-year period and options issued to non-employee directors vest at the end of six months, both with a 10-year term. Nonvested share awards and nonvested share unit awards generally vest over a two, three or four-year period.

We had a 2002 Omnibus Stock Incentive Plan, which was terminated in June 2009; no new grants may be made under this plan, although exercises of SARs and options previously granted thereunder will still occur in accordance with the terms of the various grants.

Total stock-based compensation expense under all Plans included in the results of operations was $6.0 million for fiscal 2017, $4.9 million for fiscal 2016 and $4.8 million for 2015. We elect to account for any forfeitures as they occur.

Stock Options and SARs

There were no stock options or SARs issued in any fiscal year presented. Activity for the current year is summarized as follows:

	Number of Shares		Weighted Average Exercise  Price		Weighted Average Remaining Contractual Life	Aggregate Intrinsic Value at Year-End
Outstanding at February 27, 2016	403,714		$	11.81
Awards exercised	(173,813	)	14.34
Outstanding and exercisable at March 4, 2017	229,901		$	9.90	4.0 Years	$	11,101,695

Cash proceeds from the exercise of stock options were $1.9 million, $1.6 million and $1.2 million for fiscal 2017, 2016 and 2015, respectively. The aggregate intrinsic value of securities exercised (the amount by which the stock price on the date of exercise exceeded the stock price of the award on the date of grant) was $6.0 million, $7.5 million and $4.6 million in fiscal 2017, 2016 and 2015, respectively.

Nonvested Share Awards and Units

The following table summarizes nonvested share activity for fiscal 2017:

	Number of Shares and Units		Weighted Average Grant Date Fair Value
February 27, 2016	275,457		$	37.48
Granted	148,672		42.90
Vested	(143,875	)	28.81
Canceled	(1,050	)	44.55
March 4, 2017	279,204		$	44.80

At March 4, 2017, there was $6.6 million of total unrecognized compensation cost related to nonvested share and nonvested share unit awards, which is expected to be recognized over a weighted average period of approximately 20 months. The total fair value of shares vested during fiscal 2017 was $6.3 million.

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Income Taxes

12 Months Ended

Mar. 04, 2017

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

Earnings before income taxes consisted of the following:

(In thousands)	2017			2016			2015
U.S.	$	123,229		$	100,859		$	59,898
International	(424		)	(3,535		)	5,101
Earnings before income taxes	$	122,805		$	97,324		$	64,999

The components of income tax expense (benefit) for each of the last three fiscal years was:

(In thousands)	2017			2016			2015
Current
Federal	$	35,610		$	35,888		$	7,328
State and local	2,929			2,866			1,198
International	(147		)	(636		)	1,790
Total current	38,392			38,118			10,316
Deferred
Federal	(945		)	(5,403		)	4,738
State and local	(78		)	(512		)	(363		)
International	(42		)	(224		)	(101		)
Total deferred	(1,065		)	(6,139		)	4,274
Total non-current tax (benefit) expense	(312		)	3			(107		)
Total income tax expense	$	37,015		$	31,982		$	14,483

Income tax payments, net of refunds were $47.8 million, $25.9 million and $11.3 million in fiscal 2017, 2016 and 2015, respectively.

The following table provides a reconciliation of the statutory federal income tax rate to our consolidated effective tax rates:

	2017		2016		2015
Federal income tax expense at statutory rate	35.0	%	35.0	%	35.0	%
Manufacturing deduction	(3.3	)	(3.4	)	(2.3	)
State and local income taxes, net of federal tax benefit	1.6		1.6		1.2
Foreign tax rate differential	(1.6	)	—		—
Tax credits - research & development	(0.7	)	(0.8	)	(1.1	)
Tax credits - 48C	—		—		(9.9	)
Other, net	(0.9	)	0.5		(0.6	)
Income tax expense	30.1	%	32.9	%	22.3	%

In the current year, we recorded a net tax benefit of $1.9 million on a distribution from our Brazilian operation. Additionally, in the fourth quarter, as a result of the adoption of ASU 2016-09 (see additional discussion in Note 1), we recognized tax benefits of $0.9 million within income tax expense. In fiscal 2016 and 2015, tax benefits associated with stock-based incentive plans were $3.9 million and $3.3 million, respectively. These benefits impacted additional paid-in capital and were not reflected in the determination of income tax expense or benefit.

In fiscal 2015, the Company recognized approximately $6.4 million of tax benefit from an energy-efficient investment credit under Section 48C of the U.S. Internal Revenue Code, upon successful start-up and commercial production of coatings on our new architectural glass coater. The tax credit was awarded in 2011 by the U.S. Internal Revenue Service (IRS) in cooperation with the Department of Energy as part of the American Reinvestment and Recovery Act to incent energy-efficient investments.

In the first quarter of fiscal 2017, the Company adopted ASU 2015-17, which requires deferred tax assets and liabilities to be classified as noncurrent in the financial statements. We have not elected to apply this change in accounting principle retroactively. Deferred tax assets and deferred tax liabilities at March 4, 2017 and February 27, 2016 were:

	2017			2016
(In thousands)	Noncurrent			Current			Noncurrent
Accounts receivable	$	408		$	825		$	—
Other accruals	4,254			2,968			1,281
Deferred compensation	15,189			554			12,594
Goodwill and other intangibles	(7,601		)	18			(7,615		)
Depreciation	(18,714		)	—			(17,354		)
Liability for unrecognized tax benefits	2,623			—			2,797
Net operating losses	5,790			—			2,945
Valuation allowance on net operating losses	(2,352		)	(2,194		)	(306		)
Other	403			(351		)	686
Deferred tax (liabilities) assets	$	—		$	1,820		$	(4,972	)

The Company has U.S. federal tax credits as well as state net operating loss carryforwards with a tax effect of $5.5 million. A valuation allowance of $2.4 million has been established for these net operating loss carryforwards due to the uncertainty of the use of the tax benefits in future periods.

The Company files income tax returns in the U.S. federal jurisdiction, various U.S. state jurisdictions, Canada, Brazil and other international jurisdictions. The Company is no longer subject to U.S. federal tax examinations for years prior to fiscal 2014, or state and local income tax examinations for years prior to fiscal 2010. The Company is not currently under U.S. federal examination for years subsequent to fiscal 2013, and there is very limited audit activity of the Company’s income tax returns in U.S. state jurisdictions or international jurisdictions.

The Company considers the earnings of its non-U.S. subsidiaries to be indefinitely invested outside of the U.S. on the basis of estimates that future domestic cash generation will be sufficient to meet future domestic cash needs and specific plans for reinvestment of those subsidiary earnings. Should the Company decide to repatriate foreign earnings, it would need to adjust the income tax provision in the period it was determined that the earnings will no longer be indefinitely invested outside the U.S.

If we were to prevail on all unrecognized tax benefits recorded, $2.1 million, $2.7 million and $2.6 million for fiscal 2017, 2016 and 2015, respectively, would benefit the effective tax rate. Also included in the balance of unrecognized tax benefits for fiscal 2017, 2016 and 2015, are $2.0 million, $1.8 million and $1.9 million, respectively, of tax benefits that, if recognized, would result in adjustments to deferred taxes.

Penalties and interest related to unrecognized tax benefits are recorded in income tax expense. For fiscal 2017, we accrued penalties and interest related to unrecognized tax benefits of $0.4 million. For each of fiscal 2016 and 2015, the accrual was $0.5 million.

The following table provides a reconciliation of the total amounts of gross unrecognized tax benefits:

(In thousands)	2017			2016			2015
Gross unrecognized tax benefits at beginning of year	$	4,512		$	4,491		$	4,431
Gross increases in tax positions for prior years	54			60			261
Gross decreases in tax positions for prior years	(233		)	(158		)	(276		)
Gross increases based on tax positions related to the current year	508			526			508
Gross decreases based on tax positions related to the current year	—			(33		)	(21		)
Settlements	(23		)	—			(93		)
Statute of limitations expiration	(743		)	(374		)	(319		)
Gross unrecognized tax benefits at end of year	$	4,075		$	4,512		$	4,491

The total liability for unrecognized tax benefits is expected to decrease by approximately $0.4 million during fiscal 2018 due to lapsing of statutes.

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Quarterly Data (Unaudited)

12 Months Ended

Mar. 04, 2017

Quarterly Financial Information Disclosure [Abstract]

Quarterly Data (Unaudited)

Quarterly Data (Unaudited)

	Quarter
(In thousands, except per share data)	First		Second		Third		Fourth (1)		Total
2017
Net sales	$	247,880	$	278,455	$	274,072	$	314,126	$	1,114,533
Gross profit	64,428		72,531		72,868		82,196		292,023
Net earnings	17,722		22,397		22,552		23,119		85,790
Earnings per share - basic	0.62		0.78		0.78		0.81		2.98
Earnings per share - diluted	0.61		0.77		0.78		0.80		2.97
2016
Net sales	$	239,962	$	240,754	$	238,324	$	262,149	$	981,189
Gross profit	55,588		56,699		62,426		68,857		243,570
Net earnings	12,126		14,760		18,521		19,935		65,342
Earnings per share - basic	0.42		0.51		0.64		0.69		$	2.25
Earnings per share - diluted	0.41		0.50		0.63		0.69		$	2.22

Per share amounts are computed independently for each of the quarters presented. The sum of the quarters may not equal the total year amount due to the impact of changes in average quarterly shares outstanding, and all other quarterly amounts may not equal the total year due to rounding.

⁽¹⁾ We acquired Sotawall in the fourth quarter of fiscal 2017; refer to Note 2 for additional information.

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Earnings per Share

12 Months Ended

Mar. 04, 2017

Earnings Per Share [Abstract]

Earnings per Share

Earnings per Share

Basic earnings per share is computed by dividing net earnings by the weighted average number of common shares outstanding. Diluted earnings per share is computed by dividing net earnings by the weighted average number of common shares outstanding, including the dilutive effects of stock options, SARs and nonvested shares. The following table presents a reconciliation of the share amounts used in the computation of basic and diluted earnings per share:

(In thousands)	2017	2016	2015
Basic earnings per share - weighted average common shares outstanding	28,781	29,058	28,763
Weighted average effect of nonvested share grants and assumed exercise of stock options	112	317	611
Diluted earnings per share - weighted average common shares and potential common shares outstanding	28,893	29,375	29,374
Stock options excluded from the calculation of earnings per share because the exercise price was greater than the average market price of the common shares	—	—	—

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Business Segment Data

12 Months Ended

Mar. 04, 2017

Segment Reporting [Abstract]

Business Segment Data

Business Segment Data

We have four reporting segments:

• The Architectural Glass segment fabricates coated, high-performance glass used globally in customized window and wall systems comprising the outside skin of commercial, institutional and high-end multi-family residential buildings.

• The Architectural Framing Systems segment designs, engineers, fabricates and finishes the aluminum frames used in customized aluminum and glass window, curtainwall, storefront and entrance systems comprising the outside skin and entrances of commercial, institutional and high-end multi-family residential buildings. We have aggregated five operating segments into this reporting segment based on their similar products, customers, distribution methods, production processes and economic characteristics.

• The Architectural Services segment provides full-service installation of the walls of glass, windows and other curtainwall products making up the outside skin of commercial and institutional buildings.

• The Large-Scale Optical Technologies (LSO) segment manufactures value-added glass and acrylic products for framing and display applications.

(In thousands)	2017			2016			2015
Net Sales
Architectural Glass	$	411,881		$	377,713		$	346,471
Architectural Framing Systems	385,978			308,593			298,395
Architectural Services	270,937			245,935			230,650
Large-Scale Optical	89,710			88,541			87,693
Intersegment elimination	(43,973		)	(39,593		)	(29,273		)
Total	$	1,114,533		$	981,189		$	933,936
Operating Income (Loss)
Architectural Glass	$	44,656		$	35,504		$	16,431
Architectural Framing Systems	44,768			31,911			21,808
Architectural Services	18,494			11,687			7,442
Large-Scale Optical	22,467			22,963			21,954
Corporate and other	(8,160		)	(4,672		)	(4,050		)
Total	$	122,225		$	97,393		$	63,585
Depreciation and Amortization
Architectural Glass	$	15,912		$	14,397		$	12,897
Architectural Framing Systems	12,404			8,019			8,001
Architectural Services	1,364			1,274			1,375
Large-Scale Optical	4,785			4,998			4,817
Corporate and other	1,142			2,560			2,333
Total	$	35,607		$	31,248		$	29,423
Capital Expenditures
Architectural Glass	$	44,439		$	17,701		$	12,307
Architectural Framing Systems	14,070			19,166			9,238
Architectural Services	1,981			929			595
Large-Scale Optical	1,510			1,962			3,500
Corporate and other	6,061			2,279			1,580
Total	$	68,061		$	42,037		$	27,220
Identifiable Assets
Architectural Glass	$	254,840		$	215,571		$	223,525
Architectural Framing Systems	359,633			193,823			190,106
Architectural Services	70,875			81,574			68,930
Large-Scale Optical	58,198			57,369			60,356
Corporate and other	41,112			109,103			69,140
Total	$	784,658		$	657,440		$	612,057

Due to the varying combinations and integration of individual window, storefront and curtainwall systems, the Company has determined that it is impractical to report product revenues generated by class of product beyond the segment revenues currently reported.

Segment operating income is equal to net sales less cost of sales and operating expenses. Operating income does not include interest expense or a provision for income taxes. Corporate and other includes miscellaneous corporate activity not allocable to our segments. Identifiable assets for Corporate and other include all short- and long-term available-for-sale securities.

The following table presents net sales, based on the location in which the sale originated, and long-lived assets, representing property, plant and equipment, net of related depreciation, by geographic region.

(In thousands)	2017		2016		2015
Net Sales
United States	$	1,031,214	$	923,018	$	847,887
Canada	65,958		39,324		50,807
Brazil	17,361		18,847		35,242
Total	$	1,114,533	$	981,189	$	933,936
Long-Lived Assets
United States	$	227,145	$	189,624	$	178,048
Canada	13,303		7,162		8,214
Brazil	6,300		5,676		7,278
Total	$	246,748	$	202,462	$	193,540

Apogee's export net sales from U.S. operations of $76.2 million for fiscal 2017 were approximately 7 percent of consolidated net sales; export net sales of $79.5 million for fiscal 2016 were approximately 8 percent of consolidated net sales; and export sales of $72.7 million for fiscal 2015 were approximately 8 percent of consolidated net sales.

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Schedule - Valuation and Qualifying Accounts

12 Months Ended

Mar. 04, 2017

Valuation and Qualifying Accounts [Abstract]

Financial Statement Schedules - Valuation and Qualifying Accounts

Financial Statement Schedules - Valuation and Qualifying Accounts

(In thousands)	Balance at Beginning of Period		Acquisitions		Charged to Costs and Expenses			Deductions from Reserves(1)		Other Changes(2)			Balance at End of  Period
Allowances for doubtful receivables
For the year ended March 4, 2017	$	2,497	$	25	$	(416	)	$	579	$	(32	)	$	1,495
For the year ended February 27, 2016	3,242		—		(197		)	493		(55		)	2,497
For the year ended February 28, 2015	2,934		—		1,322			969		(45		)	3,242

(1) Net of recoveries

(2) Result of foreign currency effects

All other schedules for which provision is made in the applicable accounting regulations of the Securities and Exchange Commission have been omitted because they are not applicable or the required information is shown in the financial statements or notes thereto.

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Summary of Significant Accounting Policies and Related Data (Policies)

12 Months Ended

Mar. 04, 2017

Accounting Policies [Abstract]

Basis of Consolidation

Basis of Consolidation. The consolidated financial statements include the balances of Apogee Enterprises, Inc. and its subsidiaries (Apogee, the Company or we) after elimination of intercompany balances and transactions. We consolidate variable interest entities where it has been determined that the Company is the primary beneficiary of those entities' operations.

Fiscal Year

Fiscal Year. Our fiscal year ends on the Saturday closest to the last day of February, or as determined by the Board of Directors. Fiscal 2017 consisted of 53 weeks, while 2016 and 2015 each consisted of 52 weeks. Our Brazilian subsidiary follows a calendar year-end and is consolidated on a two-month lag.

Accounting Estimates

Accounting Estimates. The preparation of the consolidated financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts in the consolidated financial statements and accompanying notes. Actual results could differ significantly from those estimates.

Cash Equivalents

Cash Equivalents. Highly liquid investments with an original maturity of three months or less are included in cash equivalents and are stated at cost, which approximates fair value

Inventories

Inventories. Inventories, which consist primarily of purchased glass and aluminum, are valued at lower of cost or market using the first-in, first-out (FIFO) method.

Property, Plant and Equipment

Property, Plant and Equipment. Property, plant and equipment (PP&E) is recorded at cost. Significant improvements and renewals that extend the useful life of the asset are capitalized. Repairs and maintenance are charged to expense as incurred. When an asset is retired or otherwise disposed of, the cost and related accumulated depreciation are removed from the accounts and any related gains or losses are included in selling, general and administrative expenses. Long-lived assets to be held and used, such as PP&E, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable.

Depreciation is computed on a straight-line basis, based on the following estimated useful lives:

	Years
Buildings and improvements	15 to 25
Machinery and equipment	3 to 15
Office equipment and furniture	3 to 10

Goodwill and Other Intangible Assets

Goodwill and Intangible Assets. Goodwill represents the excess of the cost over the net tangible and identified intangible assets of acquired businesses. We evaluate goodwill for impairment annually at our year-end, or more frequently if impairment indicators exist. We have eight business units, each of which represents a reporting unit for the goodwill impairment analysis. This year we elected first to perform a qualitative assessment to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount (commonly referred to as “step 0”). For certain of our reporting units, we also completed step 1 of the goodwill assessment process, which compares the fair value of each of our reporting units to carrying value, including goodwill. If the fair value exceeds the carrying value, goodwill impairment is not indicated. In all periods presented, we have followed a consistent discounted cash flow methodology in our step one evaluation of goodwill for impairment. Based on our analysis, we concluded that it was not more likely than not that the fair value of any reporting unit was less than carrying amount.

Intangible assets with defined useful lives are amortized based on estimated useful lives ranging from 18 months to 20 years and are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. Intangible assets with an indefinite useful life are tested for impairment annually at our year-end, or more frequently if events or changes in circumstances indicate that it is more likely than not that the asset is impaired. The estimated useful lives of all intangible assets are reviewed annually, and we have determined that the remaining lives were appropriate.

Self-Insurance

Self-Insurance. We obtain commercial insurance for potential losses for general liability, employment practices, workers' compensation, automobile liability, architect's and engineer's errors and omissions risk, product rework and other miscellaneous coverages. A substantial portion of this risk is retained on a self-insured basis through our wholly-owned insurance subsidiary. We establish a reserve for estimated ultimate losses on reported claims and those incurred but not yet reported utilizing actuarial projections. Reserves are classified within accrued or long-term self-insurance reserves based on expectations of when the estimated loss will be paid.

Additionally, we maintain a self-insurance reserve for health insurance programs offered to eligible employees, included within accrued self-insurance reserves. The reserve includes an estimate for losses on reported claims as well as for amounts incurred but not yet reported, based on historical trends.

Warranty

Warranty. We are subject to claims associated with our products and services, principally as a result of disputes with our customers involving the performance or aesthetics of our architectural products and services. We reserve estimated exposures on known claims, as well as on a portion of anticipated claims for product warranty and rework costs, based on historical product liability claims as a ratio of sales. Our warranty reserves are included in other current and non-current liabilities, based on the estimated timing of dispute resolution.

Environmental Liability

Environmental Liability. We recognize environmental clean-up liabilities on an undiscounted basis when loss is probable and can be reasonably estimated based on estimates by specialists and applicable law. Such estimates are based primarily on the estimated cost of investigation and remediation required, and the likelihood that, where applicable, other potentially responsible parties will not be able to fulfill their commitments at the sites where the Company may be jointly and severally liable. The reserve for environmental liabilities is included in other current and non-current liabilities in the consolidated balance sheets.

Foreign Currency

Foreign Currency. The financial statements of subsidiaries located outside of the U.S. are measured in their functional currency, which is local currency. Assets and liabilities of these subsidiaries are translated at the exchange rates at the balance sheet date. Income and expense items are translated using average monthly exchange rates. Translation adjustments are included in accumulated other comprehensive loss in the consolidated balance sheets.

Revenue Recognition

Revenue Recognition. We recognize revenue when title has transferred, except within our Architectural Services segment and for one business within our Architectural Framing Systems segment, which enter into fixed-price contracts for projects typically performed over a 12- to 24-month timeframe. We record revenue for these contracts on a percentage-of-completion basis as we are able to reasonably estimate total contract revenue and total contract costs. We compare the total costs incurred to date to the total estimated costs for the contract, and record that proportion of the total contract revenue in the period. Contract costs include materials, labor and other direct costs related to contract performance. We believe utilizing the cost-to-cost method for revenue recognition provides the greatest degree of accuracy in measuring revenue throughout the contract period. Provisions are established for estimated losses, if any, on uncompleted contracts in the period in which such losses are determined. Amounts representing contract change orders, claims or other items are included in contract revenue only upon customer approval. Approximately 26 percent of our consolidated net sales in fiscal 2017, and 25 percent in each of fiscal 2016 and 2015, were recorded on a percentage-of-completion basis.

Revenue excludes sales taxes as the Company considers itself a pass-through conduit for collecting and remitting sales taxes.

Pricing and Sales Incentives

Pricing and Sales Incentives. The Company records estimated reductions to revenue for customer programs and incentive offerings, including pricing arrangements, promotions and other volume-based incentives, at the later of the date revenue is recognized or the incentive is offered. Sales incentives given to customers are recorded as a reduction to net sales unless (1) the Company receives an identifiable benefit for goods or services in exchange for the consideration, and (2) the Company can reasonably estimate the fair value of the benefit received.

Shipping and Handling

Shipping and Handling. All amounts billed to a customer in a sales transaction related to shipping and handling represent revenues earned and are reported as revenue. Costs incurred by the Company for shipping and handling are reported as cost of sales.

Research and Development

Research and Development. Research and development costs are expensed as incurred within selling, general and administrative expenses, and were $8.6 million, $8.0 million and $6.5 million for fiscal 2017, 2016 and 2015, respectively. Of these amounts, $2.2 million, $2.4 million and $2.4 million, respectively, were focused primarily upon design of custom window and curtainwall systems in accordance with customer specifications and are included in cost of sales.

Advertising

Advertising. Advertising costs are expensed as incurred and were $1.1 million in fiscal 2017, $1.2 million in fiscal 2016, and $1.1 million in fiscal 2015, and they are included in selling, general and administrative expenses.

Income Taxes

Income Taxes. The Company recognizes deferred tax assets and liabilities based upon the future tax consequences of temporary differences between financial statement carrying amounts of assets and liabilities and their respective tax bases. See Note 14 for additional information regarding income taxes.

Subsequent Events

Subsequent Events. We have evaluated subsequent events for potential recognition and disclosure through the date of this filing and determined that there were no subsequent events that required recognition or disclosure in the consolidated financial statements.

New Accounting Standards

New Accounting Standards.In March 2016, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2016-09, Improvements to Employee Share-Based Payment Accounting, which simplifies several aspects of the accounting and reporting for employee share-based payment transactions. The new standard requires excess tax benefits and tax deficiencies to be recorded in the statements of income as a component of the provision for income taxes when stock awards vest or are settled. In addition, it eliminates the requirement to reclassify cash flows related to excess tax benefits from operating activities to financing activities on the consolidated statements of cash flows. We elected to early adopt the new guidance in the fourth quarter of fiscal 2017, with the following impacts to our consolidated financial statements:

• Differences between the accounting expense and the tax deduction for share-based compensation (excess tax benefits or deficits) are now recognized in the income statement within income taxes upon vesting or settlement of the award and are treated as discrete tax items impacting our effective tax rate in the period of settlement. Previously, these differences were recognized within additional paid-in capital. Net tax benefits related to share-based compensation awards of $0.9 million for the year were recognized in the fourth quarter as a reduction of income tax expense in the consolidated statements of operations. The impact of this change to prior interim reporting periods in fiscal 2017 was not material.

• The excess tax benefits from share-based compensation are included within the income taxes line as part of operating activities in the statement of cash flows, and are no longer included as a financing activity. This change is applied retrospectively.

The standard allows for an accounting policy election to continue to account for forfeitures as an estimate or to account for forfeitures as they occur. We elect to recognize forfeitures of any share-based awards as they occur.

In November 2015, the FASB issued ASU 2015-17, Balance Sheet Classification of Deferred Taxes, which requires all deferred tax assets and liabilities, along with any related valuation allowance, to be classified as noncurrent on the balance sheet. We early adopted this standard in the first quarter of the current fiscal year, and prior periods were not retrospectively adjusted. The adoption of this standard did not have a significant impact to our consolidated financial statements in any period presented.

In January 2017, the FASB issued ASU 2017-04, Simplifying the Test for Goodwill Impairment, which simplifies the accounting for goodwill impairment by requiring impairment charges to be based on the first step in the current two-step impairment test process. The new guidance eliminates the current requirement to calculate a goodwill impairment charge using step 2. The standard is applicable to impairment tests performed in periods beginning after December 15, 2019, with early adoption permitted. We are currently evaluating early adoption of this guidance for our future annual goodwill impairment review process.

In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows, and in November 2016, it issued 2016-18, Restricted Cash. Both standards provide guidance for presentation of certain topics within the statement of cash flows, including presenting restricted cash within cash and cash equivalents, and are intended to improve consistency in presentation. The new classification guidance is effective for fiscal years beginning after December 15, 2017, our fiscal year 2019, and is to be applied retrospectively for comparability across all periods. These standards may be adopted early, and we are considering the timing of adoption but we do not expect this guidance to have a significant impact on our consolidated financial statements.

In February 2016, the FASB issued ASU 2016-02, Leases, which provides for a comprehensive change to lease accounting. The new standard requires that a lessee recognize a lease obligation liability and a right to use asset for virtually all leases of property, plant and equipment, subsequently amortized over the lease term. The new standard is effective for fiscal years beginning after December 15, 2018, with a modified retrospective transition. We are currently evaluating whether we will early adopt this standard in our fiscal year 2019 to align with the adoption of the new revenue recognition standard discussed below. The adoption of this standard will result in reflecting assets and liabilities for the value of our leased property and equipment on our consolidated balance sheet but it is not expected to have a significant impact on our consolidated results of operations.

In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers, which outlines a single comprehensive model to use in accounting for revenue arising from contracts with customers and supersedes most current revenue recognition guidance. Under the new standard, an entity recognizes revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. This guidance is effective for annual reporting periods beginning after December 15, 2017, our fiscal 2019. We are in the process of fully evaluating the impact this standard will have on our financial statements. However, at this time we have determined the following:

• The standard allows a full retrospective or modified retrospective transition method. We plan to adopt the new guidance following the full retrospective method.

• We expect to have business units that will continue to recognize revenue at the point in time when goods are shipped, as that represents when control is transferred, and business units that will continue to recognize revenue over time, following a cost-to-cost percentage of completion method of revenue recognition. Additionally, we expect that one of our business units in the Architectural Framing Systems segment will change from recognizing revenue at a point in time to recognizing revenue over time to better reflect transfer of control to the customer in line with the new guidance. This business unit will follow a similar cost-to-cost percentage of completion method of revenue recognition, consistent with our other business units using percentage of completion.

• In the coming months, we will undertake a process to quantify the impact of the new accounting guidance on each of the relevant fiscal years and will provide further analysis and discussion as we progress in the evaluation process.

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Summary of Significant Accounting Policies and Related Data (Tables)

12 Months Ended

Mar. 04, 2017

Accounting Policies [Abstract]

Property, Plant and Equipment

Depreciation is computed on a straight-line basis, based on the following estimated useful lives:

	Years
Buildings and improvements	15 to 25
Machinery and equipment	3 to 15
Office equipment and furniture	3 to 10

(In thousands)	2017			2016
Land	$	8,400		$	8,827
Buildings and improvements	162,184			149,685
Machinery and equipment	316,406			296,388
Office equipment and furniture	49,720			48,805
Construction in progress	46,544			18,384
Total property, plant and equipment	583,254			522,089
Less accumulated depreciation	(336,506		)	(319,627		)
Net property, plant and equipment	$	246,748		$	202,462

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Acquisitions Acquisition (Tables)

12 Months Ended

Mar. 04, 2017

Business Combinations [Abstract]

Schedule of Recognized Identified Assets Acquired

The purchase price allocation is based on these estimated fair value of assets acquired and liabilities assumed, as follows:

(In thousands)	December 14, 2016
Net working capital	$	10,682
Property, plant and equipment	7,993
Goodwill	27,444
Other intangible assets	91,813
Net assets acquired	$	137,932

Finite-Lived and Indefinite-Lived Intangible Assets Acquired as Part of Business Combination

Other intangible assets reflect the following:

(In thousands)	Estimated fair value		Estimated useful life (in years)
Technology	$	6,319	10.0
Tradename	12,333		Indefinite
Backlog	12,638		1.5
Customer relationships	60,523		17.0
Total other intangible assets	$	91,813

Business Acquisition, Pro Forma Information

The following unaudited pro forma information provides the results of operations for the fiscal years ended March 4, 2017 and February 27, 2016, as if the acquisition had been completed at the beginning of fiscal year 2016:

	Pro Forma
(In thousands, except per share data)	2017		2016
Net sales	$	1,196,504	$	1,054,281
Net earnings	100,124		66,203
Earnings per share
Basic	$	3.48	$	2.28
Diluted	$	3.47	$	2.25

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Working Capital (Tables)

12 Months Ended

Mar. 04, 2017

Working Capital [Abstract]

Receivables

Receivables

(In thousands)	2017			2016
Trade accounts	$	122,149		$	102,627
Construction contracts	31,923			41,631
Contract retainage	29,191			28,249
Other receivables	3,972			2,822
Total receivables	187,235			175,329
Less allowance for doubtful accounts	(1,495		)	(2,497		)
Net receivables	$	185,740		$	172,832

Inventories

Inventories

(In thousands)	2017		2016
Raw materials	$	22,761	$	21,404
Work-in-process	16,154		9,958
Finished goods	29,372		25,486
Costs and earnings in excess of billings on uncompleted contracts	5,122		6,538
Total inventories	$	73,409	$	63,386

Other Current Liabilities

Other Current Liabilities

(In thousands)	2017		2016
Warranties	$	21,100	$	14,666
Taxes, other than income taxes	4,452		5,058
Other	8,648		9,615
Total other current liabilities	$	34,200	$	29,339

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Marketable Securities (Tables)

12 Months Ended

Mar. 04, 2017

Marketable Securities [Abstract]

Amortized cost, gross unrealized gains and losses, and estimated fair values of investments available for sale

(In thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
March 4, 2017
Municipal bonds	$	9,595	$	91	$	(97	)	$	9,589
Total marketable securities	$	9,595	$	91	$	(97	)	$	9,589
February 27, 2016
Mutual fund	$	30,178	$	—	$	(55	)	$	30,123
Municipal bonds	12,393		285		(109		)	12,569
Total marketable securities	$	42,571	$	285	$	(164	)	$	42,692

Schedule of length of time that available-for-sale securities were in continuous unrealized loss positions

The following table presents the length of time that our securities were in continuous unrealized loss positions, but were not deemed to be other than temporarily impaired, as of March 4, 2017:

	Less Than 12 Months					Greater Than or Equal  to 12 Months					Total
(In thousands)	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
Municipal bonds	$	1,413	$	(14	)	$	1,167	$	(83	)	$	2,580	$	(97	)

Schedule of amortized cost and estimated fair values of investments by contractual maturity

The amortized cost and estimated fair values of our municipal bonds at March 4, 2017, by contractual maturity, are shown below. Expected maturities may differ from contractual maturities, as borrowers may have the right to call or prepay obligations with or without penalty. Gross realized gains and losses were insignificant for all periods presented.

(In thousands)	Amortized Cost		Estimated Market Value
Due within one year	$	548	$	548
Due after one year through five years	3,003		3,028
Due after five years through 10 years	4,553		4,605
Due after 10 years through 15 years	1,491		1,408
Total	$	9,595	$	9,589

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Fair Value Measurements (Tables)

12 Months Ended

Mar. 04, 2017

Fair Value Disclosures [Abstract]

Financial assets and liabilities measured at fair value

Financial assets and liabilities are classified in the fair value

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Property, Plant and Equipment (Tables)

12 Months Ended

Mar. 04, 2017

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

Depreciation is computed on a straight-line basis, based on the following estimated useful lives:

	Years
Buildings and improvements	15 to 25
Machinery and equipment	3 to 15
Office equipment and furniture	3 to 10

(In thousands)	2017			2016
Land	$	8,400		$	8,827
Buildings and improvements	162,184			149,685
Machinery and equipment	316,406			296,388
Office equipment and furniture	49,720			48,805
Construction in progress	46,544			18,384
Total property, plant and equipment	583,254			522,089
Less accumulated depreciation	(336,506		)	(319,627		)
Net property, plant and equipment	$	246,748		$	202,462

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Goodwill and Other Identifiable Intangible Assets (Tables)

12 Months Ended

Mar. 04, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of goodwill attributable to each business segment

The carrying amount of goodwill attributable to each reporting segment was:

(In thousands)	Architectural Glass			Architectural Services		Architectural Framing Systems			Large-Scale Optical		Total
Balance at February 28, 2015	$	26,355		$	1,120	$	37,825		$	10,557	$	75,857
Foreign currency translation	(716		)	—		(1,145		)	—		(1,861		)
Balance at February 27, 2016	25,639			1,120		36,680			10,557		73,996
Goodwill acquired	—			—		27,444			—		27,444
Foreign currency translation	317			—		(423		)	—		(106		)
Balance at March 4, 2017	$	25,956		$	1,120	$	63,701		$	10,557	$	101,334

Schedule of finite lived intangible assets

The gross carrying amount of other intangible assets and related accumulated amortization was:

(In thousands)	Gross Carrying Amount		Accumulated Amortization			Foreign Currency Translation			Net
March 4, 2017
Definite-lived intangible assets
Debt issue costs	$	4,066	$	(2,960	)	$	—		$	1,106
Non-compete agreements	6,286		(6,025		)	(65		)	196
Customer relationships	82,479		(14,013		)	(145		)	68,321
Trademarks and other intangibles	25,950		(4,917		)	(31		)	21,002
Total definite-lived intangible assets	118,781		(27,915		)	(241		)	90,625
Indefinite-lived intangible assets
Trademarks	16,022		—			39			16,061
Total intangible assets	$	134,803	$	(27,915	)	$	(202	)	$	106,686
February 27, 2016
Definite-lived intangible assets
Debt issue costs	$	3,677	$	(2,758	)	$	—		$	919
Non-compete agreements	6,673		(6,419		)	(16		)	238
Customer relationships	24,174		(12,737		)	(1,162		)	10,275
Trademarks and other intangibles	8,213		(3,271		)	(431		)	4,511
Total definite-lived intangible assets	42,737		(25,185		)	(1,609		)	15,943
Indefinite-lived intangible assets
Trademarks	4,239		—			(320		)	3,919
Total intangible assets	$	46,976	$	(25,185	)	$	(1,929	)	$	19,862

Schedule of estimated future amortization expense for identifiable intangible assets

Estimated future amortization expense for definite-lived intangible assets is as follows:

(In thousands)	2018		2019		2020		2021		2022
Estimated amortization expense	$	14,157	$	7,918	$	5,592	$	5,479	$	5,372

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Debt (Tables)

12 Months Ended

Mar. 04, 2017

Debt Disclosure [Abstract]

Schedule of Maturities of Long-term Debt

Debt maturities and other selected information follows:

(In thousands)	2018	2019	2020	2021	2022	Thereafter	Total
Maturities	$—	$—	$—	$5,400	$47,000	$13,000	$	65,400

Selected Information Related to Long-term Debt

(In thousands, except percentages)	2017			2016
Average daily borrowings during the year	$	34,320		$	21,730
Maximum borrowings outstanding during the year	91,400			22,480
Weighted average interest rate during the year	2.22		%	0.29		%

Schedule of Interest Expense

(In thousands)	2017		2016		2015
Interest on debt	$	971	$	544	$	581
Other interest expense	—		49		343
Interest expense	$	971	$	593	$	924

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Other Non-Current Liabilities (Tables)

12 Months Ended

Mar. 04, 2017

Other Liabilities Disclosure [Abstract]

Other Noncurrent Liabilities

(In thousands)	2017		2016
Deferred benefit from New Markets Tax Credit transactions	$	16,708	$	10,741
Retirement plan obligations	9,635		9,992
Deferred compensation plan	7,463		4,814
Other	11,981		11,367
Total other non-current liabilities	$	45,787	$	36,914

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Employee Benefit Plans (Tables)

12 Months Ended

Mar. 04, 2017

Compensation and Retirement Disclosure [Abstract]

Schedule of Defined Benefit Plans Disclosures

The following tables present reconciliations of the benefit obligation of the defined-benefit pension plans and the funded status of the defined-benefit pension plans. The Tubelite plan uses a measurement date as of the calendar month-end closest to our fiscal year-end, while the SERP uses a measurement date aligned with our fiscal year-end.

(In thousands)	2017			2016
Change in projected benefit obligation
Benefit obligation beginning of period	$	14,900		$	16,253
Interest cost	555			566
Actuarial loss (gain)	54			(907		)
Benefits paid	(1,017		)	(1,012		)
Benefit obligation at measurement date	14,492			14,900
Change in plan assets
Fair value of plan assets beginning of period	$	4,261		$	4,419
Actual return on plan assets	73			(62		)
Company contributions	868			916
Benefits paid	(1,017		)	(1,012		)
Fair value of plan assets at measurement date	4,185			4,261
Underfunded status	$	(10,307	)	$	(10,639	)

Schedule of Amounts Recognized in Balance Sheet

The underfunded status of our plans was recognized in the consolidated balance sheets:

(In thousands)	2017			2016
Current liabilities	$	(672	)	$	(647	)
Other non-current liabilities	(9,635		)	(9,992		)
Total	$	(10,307	)	$	(10,639	)

Schedule of Amounts in Accumulated Other Comprehensive Income (Loss) to be Recognized as Components of Net Periodic Benefit Cost

The following was included in accumulated other comprehensive loss and has not yet been recognized as a component of net periodic benefit cost:

(In thousands)	2017		2016
Net actuarial loss	$	5,696	$	5,899
Accumulated other comprehensive loss	$	5,696	$	5,899

Schedule of Amounts Recognized in Comprehensive Earnings

The amount recognized in comprehensive earnings, net of tax expense, was:

(In thousands)	2017			2016
Net actuarial gain	$	(130	)	$	(610	)
Total	$	(130	)	$	(610	)

Schedule of Net Benefit Costs

Components of the defined-benefit pension plans' net periodic benefit cost:

(In thousands)	2017			2016			2015
Interest cost	$	555		$	566		$	550
Expected return on assets	(41		)	(137		)	(171		)
Amortization of unrecognized net loss	225			249			172
Net periodic benefit cost	$	739		$	678		$	551

Schedule of Assumptions Used

Benefit Obligation Weighted-Average Assumptions	2017		2016		2015
Discount rate	3.80	%	3.85	%	3.60	%

Net Periodic Benefit Expense Weighted-Average Assumptions	2017		2016		2015
Discount rate	3.85	%	3.60	%	4.00	%
Expected long-term rate of return on assets	2.00	%	2.00	%	4.50	%

Schedule of Expected Benefit Payments

The following benefit payments, which reflect expected future service, are expected to be paid by the plans:

(In thousands)	2018		2019		2020		2021		2022		2023-2027
Estimated future benefit payments	$	1,016	$	1,052	$	1,026	$	1,009	$	984	$	4,602

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Commitments and Contingent Liabilities (Tables)

12 Months Ended

Mar. 04, 2017

Commitments and Contingencies Disclosure [Abstract]

Future minimum rental payments under noncancelable operating leases

Future minimum rental payments under non-cancelable operating leases are:

(In thousands)	2018		2019		2020		2021		2022		Thereafter		Total
Total minimum payments	$	11,419	$	10,796	$	9,286	$	6,342	$	5,605	$	9,002	$	52,450

Guarantees and warranties

A warranty rollforward follows:

(In thousands)	2017			2016
Balance at beginning of period	$	16,340		$	11,275
Additional accruals	11,499			8,214
Claims paid	(5,906		)	(3,149		)
Balance at end of period	$	21,933		$	16,340

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Shareholders' Equity (Tables)

12 Months Ended

Mar. 04, 2017

Equity [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss)

The following summarizes the accumulated other comprehensive loss, net of tax, at March 4, 2017 and February 27, 2016:

(In thousands)	2017			2016
Net unrealized (loss) gain on marketable securities	$	(4	)	$	79
Pension liability adjustments	(3,628		)	(3,758		)
Foreign currency translation adjustments	(27,458		)	(27,692		)
Total accumulated other comprehensive loss	$	(31,090	)	$	(31,371	)

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Stock-Based Compensation (Tables)

12 Months Ended

Mar. 04, 2017

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Award transactions on stock options

	Number of Shares		Weighted Average Exercise  Price		Weighted Average Remaining Contractual Life	Aggregate Intrinsic Value at Year-End
Outstanding at February 27, 2016	403,714		$	11.81
Awards exercised	(173,813	)	14.34
Outstanding and exercisable at March 4, 2017	229,901		$	9.90	4.0 Years	$	11,101,695

Nonvested share award transactions

The following table summarizes nonvested share activity for fiscal 2017:

	Number of Shares and Units		Weighted Average Grant Date Fair Value
February 27, 2016	275,457		$	37.48
Granted	148,672		42.90
Vested	(143,875	)	28.81
Canceled	(1,050	)	44.55
March 4, 2017	279,204		$	44.80

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Income Taxes (Tables)

12 Months Ended

Mar. 04, 2017

Income Tax Disclosure [Abstract]

Schedule of Income before Income Tax, Domestic and Foreign

Earnings before income taxes consisted of the following:

(In thousands)	2017			2016			2015
U.S.	$	123,229		$	100,859		$	59,898
International	(424		)	(3,535		)	5,101
Earnings before income taxes	$	122,805		$	97,324		$	64,999

Schedule of Components of Income Tax Expense (Benefit)

The components of income tax expense (benefit) for each of the last three fiscal years was:

(In thousands)	2017			2016			2015
Current
Federal	$	35,610		$	35,888		$	7,328
State and local	2,929			2,866			1,198
International	(147		)	(636		)	1,790
Total current	38,392			38,118			10,316
Deferred
Federal	(945		)	(5,403		)	4,738
State and local	(78		)	(512		)	(363		)
International	(42		)	(224		)	(101		)
Total deferred	(1,065		)	(6,139		)	4,274
Total non-current tax (benefit) expense	(312		)	3			(107		)
Total income tax expense	$	37,015		$	31,982		$	14,483

Schedule of Effective Income Tax Rate Reconciliation

The following table provides a reconciliation of the statutory federal income tax rate to our consolidated effective tax rates:

	2017		2016		2015
Federal income tax expense at statutory rate	35.0	%	35.0	%	35.0	%
Manufacturing deduction	(3.3	)	(3.4	)	(2.3	)
State and local income taxes, net of federal tax benefit	1.6		1.6		1.2
Foreign tax rate differential	(1.6	)	—		—
Tax credits - research & development	(0.7	)	(0.8	)	(1.1	)
Tax credits - 48C	—		—		(9.9	)
Other, net	(0.9	)	0.5		(0.6	)
Income tax expense	30.1	%	32.9	%	22.3	%

Schedule of Deferred Tax Assets and Liabilities

Deferred tax assets and deferred tax liabilities at March 4, 2017 and February 27, 2016 were:

	2017			2016
(In thousands)	Noncurrent			Current			Noncurrent
Accounts receivable	$	408		$	825		$	—
Other accruals	4,254			2,968			1,281
Deferred compensation	15,189			554			12,594
Goodwill and other intangibles	(7,601		)	18			(7,615		)
Depreciation	(18,714		)	—			(17,354		)
Liability for unrecognized tax benefits	2,623			—			2,797
Net operating losses	5,790			—			2,945
Valuation allowance on net operating losses	(2,352		)	(2,194		)	(306		)
Other	403			(351		)	686
Deferred tax (liabilities) assets	$	—		$	1,820		$	(4,972	)

Schedule of Unrecognized Tax Benefits Roll Forward

The following table provides a reconciliation of the total amounts of gross unrecognized tax benefits:

(In thousands)	2017			2016			2015
Gross unrecognized tax benefits at beginning of year	$	4,512		$	4,491		$	4,431
Gross increases in tax positions for prior years	54			60			261
Gross decreases in tax positions for prior years	(233		)	(158		)	(276		)
Gross increases based on tax positions related to the current year	508			526			508
Gross decreases based on tax positions related to the current year	—			(33		)	(21		)
Settlements	(23		)	—			(93		)
Statute of limitations expiration	(743		)	(374		)	(319		)
Gross unrecognized tax benefits at end of year	$	4,075		$	4,512		$	4,491

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Quarterly Data (Unaudited) (Tables)

12 Months Ended

Mar. 04, 2017

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Financial Information

	Quarter
(In thousands, except per share data)	First		Second		Third		Fourth (1)		Total
2017
Net sales	$	247,880	$	278,455	$	274,072	$	314,126	$	1,114,533
Gross profit	64,428		72,531		72,868		82,196		292,023
Net earnings	17,722		22,397		22,552		23,119		85,790
Earnings per share - basic	0.62		0.78		0.78		0.81		2.98
Earnings per share - diluted	0.61		0.77		0.78		0.80		2.97
2016
Net sales	$	239,962	$	240,754	$	238,324	$	262,149	$	981,189
Gross profit	55,588		56,699		62,426		68,857		243,570
Net earnings	12,126		14,760		18,521		19,935		65,342
Earnings per share - basic	0.42		0.51		0.64		0.69		$	2.25
Earnings per share - diluted	0.41		0.50		0.63		0.69		$	2.22

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Earnings per Share (Tables)

12 Months Ended

Mar. 04, 2017

Earnings Per Share [Abstract]

Reconciliation of basic and diluted earnings per share

The following table presents a reconciliation of the share amounts used in the computation of basic and diluted earnings per share:

(In thousands)	2017	2016	2015
Basic earnings per share - weighted average common shares outstanding	28,781	29,058	28,763
Weighted average effect of nonvested share grants and assumed exercise of stock options	112	317	611
Diluted earnings per share - weighted average common shares and potential common shares outstanding	28,893	29,375	29,374
Stock options excluded from the calculation of earnings per share because the exercise price was greater than the average market price of the common shares	—	—	—

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Business Segment Data (Tables)

12 Months Ended

Mar. 04, 2017

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment

(In thousands)	2017			2016			2015
Net Sales
Architectural Glass	$	411,881		$	377,713		$	346,471
Architectural Framing Systems	385,978			308,593			298,395
Architectural Services	270,937			245,935			230,650
Large-Scale Optical	89,710			88,541			87,693
Intersegment elimination	(43,973		)	(39,593		)	(29,273		)
Total	$	1,114,533		$	981,189		$	933,936
Operating Income (Loss)
Architectural Glass	$	44,656		$	35,504		$	16,431
Architectural Framing Systems	44,768			31,911			21,808
Architectural Services	18,494			11,687			7,442
Large-Scale Optical	22,467			22,963			21,954
Corporate and other	(8,160		)	(4,672		)	(4,050		)
Total	$	122,225		$	97,393		$	63,585
Depreciation and Amortization
Architectural Glass	$	15,912		$	14,397		$	12,897
Architectural Framing Systems	12,404			8,019			8,001
Architectural Services	1,364			1,274			1,375
Large-Scale Optical	4,785			4,998			4,817
Corporate and other	1,142			2,560			2,333
Total	$	35,607		$	31,248		$	29,423
Capital Expenditures
Architectural Glass	$	44,439		$	17,701		$	12,307
Architectural Framing Systems	14,070			19,166			9,238
Architectural Services	1,981			929			595
Large-Scale Optical	1,510			1,962			3,500
Corporate and other	6,061			2,279			1,580
Total	$	68,061		$	42,037		$	27,220
Identifiable Assets
Architectural Glass	$	254,840		$	215,571		$	223,525
Architectural Framing Systems	359,633			193,823			190,106
Architectural Services	70,875			81,574			68,930
Large-Scale Optical	58,198			57,369			60,356
Corporate and other	41,112			109,103			69,140
Total	$	784,658		$	657,440		$	612,057

Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas

The following table presents net sales, based on the location in which the sale originated, and long-lived assets, representing property, plant and equipment, net of related depreciation, by geographic region.

(In thousands)	2017		2016		2015
Net Sales
United States	$	1,031,214	$	923,018	$	847,887
Canada	65,958		39,324		50,807
Brazil	17,361		18,847		35,242
Total	$	1,114,533	$	981,189	$	933,936
Long-Lived Assets
United States	$	227,145	$	189,624	$	178,048
Canada	13,303		7,162		8,214
Brazil	6,300		5,676		7,278
Total	$	246,748	$	202,462	$	193,540

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Summary of Significant Accounting Policies and Related Data (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Mar. 04, 2017	Feb. 27, 2016	Feb. 28, 2015
Accounting Policies [Line Items]
Reporting period monthly lag	2 months
Fiscal time period	P53W	P52W	P52W
Percentage of net sales recorded on a percentage of completion basis	26.00%		25.00%
Research and development expense	$ 8.6	$ 8.0	$ 6.5
Cost of Sales
Accounting Policies [Line Items]
Research and development expense	2.2	2.4	2.4
Selling, general and administrative expenses
Accounting Policies [Line Items]
Advertising expense	$ 1.1	$ 1.2	$ 1.1
Minimum
Accounting Policies [Line Items]
Performance Period For Percentage Of Completion Contracts	12 months
Maximum
Accounting Policies [Line Items]
Performance Period For Percentage Of Completion Contracts	18 months

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Summary of Significant Accounting Policies and Related Data (Schedule of Property Plant and Equipment Useful Lives) (Details)	12 Months Ended
	Mar. 04, 2017
Property, Plant and Equipment [Line Items]
Intangible Asset Life Minimum	18 months
Intangible Asset Life Maximum	20 years
Minimum
Property, Plant and Equipment [Line Items]
Performance Period For Percentage Of Completion Contracts	12 months
Maximum
Property, Plant and Equipment [Line Items]
Performance Period For Percentage Of Completion Contracts	18 months
Buildings and improvements | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful lives	15 years
Buildings and improvements | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful lives	25 years
Machinery and equipment | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful lives	3 years
Machinery and equipment | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful lives	15 years
Office equipment and furniture | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful lives	3 years
Office equipment and furniture | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful lives	10 years

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Acquisitions Acquisition (Narrative) (Details) - USD ($) $ in Thousands		12 Months Ended
	Dec. 14, 2016	Mar. 04, 2017	Feb. 27, 2016	Feb. 28, 2015
Business Acquisition [Line Items]
Payments to acquire business		$ 137,932	$ 0	$ 0
Revenues		76,200	79,500	72,700
Operating income		$ 122,225	97,393	63,585
Deductible portion of goodwill		75.00%
Amortization of intangible assets		$ 4,000	1,600	$ 2,100
Sotawall
Business Acquisition [Line Items]
Payments to acquire business	$ 138,000
Cash	73,000
Line of credit	$ 65,000
Revenues		17,800
Operating income		700
Amortization of intangible assets		$ 8,200	$ 12,700

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Acquisitions Acquisition (Details 1) - USD ($) $ in Thousands	Mar. 04, 2017	Dec. 14, 2016	Feb. 27, 2016	Feb. 28, 2015
Business Acquisition [Line Items]
Goodwill	$ 101,334		$ 73,996	$ 75,857
Sotawall
Business Acquisition [Line Items]
Net working capital		$ 10,682
Property, plant and equipment		7,993
Goodwill		27,444
Net assets acquired		91,813
Net assets acquired		$ 137,932

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Acquisitions Acquisition (Details 2) - Sotawall $ in Thousands	Dec. 14, 2016 USD ($)
Business Acquisition [Line Items]
Total other intangible assets	$ 91,813
Technology
Business Acquisition [Line Items]
Finite lived intangibles	$ 6,319
Estimated useful life (in years)	10 years
Backlog
Business Acquisition [Line Items]
Finite lived intangibles	$ 12,638
Estimated useful life (in years)	1 year 6 months
Customer relationships
Business Acquisition [Line Items]
Finite lived intangibles	$ 60,523
Estimated useful life (in years)	17 years
Tradename
Business Acquisition [Line Items]
Indefinite lived intangibles	$ 12,333

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Acquisitions (Details 3) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Mar. 04, 2017	Feb. 27, 2016
Business Combinations [Abstract]
Net sales	$ 1,196,504	$ 1,054,281
Net earnings	$ 100,124	$ 66,203
Basic (USD per share)	$ 3.48	$ 2.28
Diluted (USD per share)	$ 3.47	$ 2.25

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Working Capital (Schedule of Receivables) (Details) - USD ($) $ in Thousands	Mar. 04, 2017	Feb. 27, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total receivables	$ 187,235	$ 175,329
Less allowance for doubtful accounts	(1,495)	(2,497)
Net receivables	185,740	172,832
Trade accounts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total receivables	122,149	102,627
Construction contracts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total receivables	31,923	41,631
Contract retainage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total receivables	29,191	28,249
Other receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total receivables	$ 3,972	$ 2,822

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Working Capital (Schedule of Inventory) (Details) - USD ($) $ in Thousands	Mar. 04, 2017	Feb. 27, 2016
Working Capital [Abstract]
Raw materials	$ 22,761	$ 21,404
Work-in-process	16,154	9,958
Finished goods	29,372	25,486
Costs and earnings in excess of billings on uncompleted contracts	5,122	6,538
Total inventories	$ 73,409	$ 63,386

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Working Capital (Schedule of Other Current Liabilities) (Details) - USD ($) $ in Thousands	Mar. 04, 2017	Feb. 27, 2016
Working Capital [Abstract]
Warranties	$ 21,100	$ 14,666
Taxes, other than income taxes	4,452	5,058
Other	8,648	9,615
Total other current liabilities	$ 34,200	$ 29,339

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Marketable Securities (Details) - USD ($) $ in Thousands	Mar. 04, 2017	Feb. 27, 2016
Amortized cost, gross unrealized gains and losses, and estimated fair values of investments available for sale
Amortized Cost	$ 9,595	$ 42,571
Gross Unrealized Gains	91	285
Gross Unrealized Losses	(97)	(164)
Estimated Fair Value	9,589	42,692
Municipal bonds
Amortized cost, gross unrealized gains and losses, and estimated fair values of investments available for sale
Amortized Cost	9,595	12,393
Gross Unrealized Gains	91	285
Gross Unrealized Losses	(97)	(109)
Estimated Fair Value	$ 9,589	12,569
Mutual fund
Amortized cost, gross unrealized gains and losses, and estimated fair values of investments available for sale
Amortized Cost		30,178
Gross Unrealized Gains		0
Gross Unrealized Losses		(55)
Estimated Fair Value		$ 30,123

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Marketable Securities (Details 1) - Municipal bonds $ in Thousands	Mar. 04, 2017 USD ($)
Schedule of length of time that available-for-sale securities were in continuous unrealized loss positions
Less Than 12 Months, Fair Value	$ 1,413
Less Than 12 Months, Unrealized Losses	(14)
Greater Than or Equal to 12 Months, Fair Value	1,167
Greater Than or Equal to 12 Months, Unrealized Losses	(83)
Total Fair Value	2,580
Total Unrealized Losses	$ (97)

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Marketable Securities (Details 2) - USD ($) $ in Thousands	Mar. 04, 2017	Feb. 27, 2016
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 9,595	$ 42,571
Estimated Fair Value	9,589	42,692
Municipal bonds
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost, Due within one year	548
Amortized Cost, Due after one year through five years	3,003
Amortized Cost, Due after five years through 10 years	4,553
Amortized Cost, Due after 10 years through 15 years	1,491
Amortized Cost	9,595	12,393
Estimated Market Value, Due within one year	548
Estimated Market Value, Due after one year through five years	3,028
Estimated Market Value, Due after five years through 10 years	4,605
Estimated Market Value, Due after 10 years through 15 years	1,408
Estimated Fair Value	$ 9,589	$ 12,569

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Fair Value Measurements (Details) - USD ($) $ in Thousands	Mar. 04, 2017	Feb. 27, 2016
Cash equivalents
Total cash equivalents	$ 9,923	$ 52,973
Available for sale securities
Total available for sale securities		30,173
Long-term securities
Total assets at fair value	19,512	95,665
Money market funds
Cash equivalents
Total cash equivalents	4,423	23,199
Commercial paper
Cash equivalents
Total cash equivalents	5,500	29,774
Mutual fund
Available for sale securities
Total available for sale securities		30,123
Municipal bonds
Available for sale securities
Total available for sale securities	548	50
Long-term securities
Total long-term securities	9,041	12,519
Quoted Prices in Active Markets (Level 1)
Cash equivalents
Total cash equivalents	4,423	23,199
Available for sale securities
Total available for sale securities		30,123
Long-term securities
Total assets at fair value	4,423	53,322
Quoted Prices in Active Markets (Level 1) | Money market funds
Cash equivalents
Total cash equivalents	4,423	23,199
Quoted Prices in Active Markets (Level 1) | Commercial paper
Cash equivalents
Total cash equivalents	0	0
Quoted Prices in Active Markets (Level 1) | Mutual fund
Available for sale securities
Total available for sale securities		30,123
Quoted Prices in Active Markets (Level 1) | Municipal bonds
Available for sale securities
Total available for sale securities	0	0
Long-term securities
Total long-term securities	0	0
Other Observable Inputs (Level 2)
Cash equivalents
Total cash equivalents	5,500	29,774
Available for sale securities
Total available for sale securities		50
Long-term securities
Total assets at fair value	15,089	42,343
Other Observable Inputs (Level 2) | Money market funds
Cash equivalents
Total cash equivalents	0	0
Other Observable Inputs (Level 2) | Commercial paper
Cash equivalents
Total cash equivalents	5,500	29,774
Other Observable Inputs (Level 2) | Mutual fund
Available for sale securities
Total available for sale securities		0
Other Observable Inputs (Level 2) | Municipal bonds
Available for sale securities
Total available for sale securities	548	50
Long-term securities
Total long-term securities	$ 9,041	$ 12,519

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Property, Plant and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 04, 2017	Feb. 27, 2016	Feb. 28, 2015
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	$ 583,254	$ 522,089
Less accumulated depreciation	(336,506)	(319,627)
Net property, plant and equipment	246,748	202,462	$ 193,540
Depreciation expense	31,600	29,800	$ 27,500
Land
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	8,400	8,827
Buildings and improvements
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	162,184	149,685
Machinery and equipment
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	316,406	296,388
Office equipment and furniture
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	49,720	48,805
Construction in progress
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	$ 46,544	$ 18,384

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Goodwill and Other Identifiable Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 04, 2017	Feb. 27, 2016
Schedule of goodwill attributable to each business segment
Goodwill, Beginning	$ 73,996	$ 75,857
Goodwill acquired	27,444
Foreign currency translation	(106)	(1,861)
Goodwill, Ending	101,334	73,996
Architectural Glass
Schedule of goodwill attributable to each business segment
Goodwill, Beginning	25,639	26,355
Goodwill acquired	0
Foreign currency translation	317	(716)
Goodwill, Ending	25,956	25,639
Architectural Services
Schedule of goodwill attributable to each business segment
Goodwill, Beginning	1,120	1,120
Goodwill acquired	0
Foreign currency translation	0	0
Goodwill, Ending	1,120	1,120
Architectural Framing Systems
Schedule of goodwill attributable to each business segment
Goodwill, Beginning	36,680	37,825
Goodwill acquired	27,444
Foreign currency translation	(423)	(1,145)
Goodwill, Ending	63,701	36,680
Large-Scale Optical
Schedule of goodwill attributable to each business segment
Goodwill, Beginning	10,557	10,557
Goodwill acquired	0
Foreign currency translation	0	0
Goodwill, Ending	$ 10,557	$ 10,557

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Goodwill and Other Identifiable Intangible Assets (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Mar. 04, 2017	Feb. 27, 2016
Schedule of finite lived identifiable intangible assets
Gross Carrying Amount	$ 118,781	$ 42,737
Accumulated Amortization	(27,915)	(25,185)
Foreign Currency Translation	(241)	(1,609)
Net	90,625	15,943
Intangible Assets Gross Excluding Goodwill	134,803	46,976
Intangible Assets Accumulated Amortization	(27,915)	(25,185)
Intangible Assets Foreign Currency Translation	(202)	(1,929)
Intangible Assets, Net (Excluding Goodwill)	106,686	19,862
Debt issue costs
Schedule of finite lived identifiable intangible assets
Gross Carrying Amount	4,066	3,677
Accumulated Amortization	(2,960)	(2,758)
Foreign Currency Translation	0	0
Net	1,106	919
Non-compete agreements
Schedule of finite lived identifiable intangible assets
Gross Carrying Amount	6,286	6,673
Accumulated Amortization	(6,025)	(6,419)
Foreign Currency Translation	(65)	(16)
Net	196	238
Customer relationships
Schedule of finite lived identifiable intangible assets
Gross Carrying Amount	82,479	24,174
Accumulated Amortization	(14,013)	(12,737)
Foreign Currency Translation	(145)	(1,162)
Net	68,321	10,275
Trademarks and other intangibles
Schedule of finite lived identifiable intangible assets
Gross Carrying Amount	25,950	8,213
Accumulated Amortization	(4,917)	(3,271)
Foreign Currency Translation	(31)	(431)
Net	21,002	4,511
Indefinite-Lived Intangible Assets (Excluding Goodwill)	16,022	4,239
Indefinite-lived Intangible Assets, Translation Adjustments	39	(320)
Indefinite-lived Intangible Assets (Excluding Goodwill), Net of translation adjustments	$ 16,061	$ 3,919

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Goodwill and Other Identifiable Intangible Assets (Details 2) $ in Thousands	Mar. 04, 2017 USD ($)
Schedule of estimated future amortization expense for identifiable intangible assets
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	$ 14,157
Estimated amortization expense, Fiscal 2017	7,918
Estimated amortization expense, Fiscal 2018	5,592
Estimated amortization expense, Fiscal 2019	5,479
Estimated amortization expense, Fiscal 2020	$ 5,372

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Goodwill and Other Identifiable Intangible Assets (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Mar. 04, 2017	Feb. 27, 2016	Feb. 28, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of Intangible Assets	$ 4.0	$ 1.6	$ 2.1

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Debt (Details Textual) $ in Thousands, CAD in Millions	12 Months Ended
	Mar. 04, 2017 USD ($)	Feb. 27, 2016 USD ($)	Feb. 28, 2015 USD ($)	Mar. 04, 2017 CAD
Debt (Textual) [Abstract]
Line of Credit Facility, Maximum Borrowing Capacity	$ 175,000
Revolving credit facility expiration date	Nov. 01, 2021
Amount of available commitment	$ 106,500
Debt	65,400
Interest payments	800	$ 500	$ 800
Letter of Credit [Member]
Debt (Textual) [Abstract]
Line of Credit Facility, Maximum Borrowing Capacity	70,000
Borrowings under revolving credit agreement
Debt (Textual) [Abstract]
Line of Credit Facility, Maximum Borrowing Capacity	175,000
Line of Credit Facility, Amount Outstanding	45,000	$ 0
Line of Credit [Member]
Debt (Textual) [Abstract]
Line of Credit Facility, Maximum Borrowing Capacity | CAD				CAD 4.0
Line of Credit Facility, Amount Outstanding	0
Industrial Revenue Bonds [Member]
Debt (Textual) [Abstract]
Debt	$ 20,400

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Debt (Schedule of Debt Maturities) (Details) $ in Thousands	Mar. 04, 2017 USD ($)
Debt Disclosure [Abstract]
2016	$ 0
2017	0
2018	0
2019	5,400
2020	47,000
Thereafter	13,000
Total long-term debt	$ 65,400

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Debt (Schedule of Selected Information Related to Long Term Debt) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 04, 2017	Feb. 27, 2016
Debt Disclosure [Abstract]
Average daily borrowings during the year	$ 34,320	$ 21,730
Maximum borrowings outstanding during the year	$ 91,400	$ 22,480
Weighted average interest rate during the year	2.22%	0.29%

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Debt (Schedule of Interest Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 04, 2017	Feb. 27, 2016	Feb. 28, 2015
Debt Disclosure [Abstract]
Interest on debt	$ 971	$ 544	$ 581
Other interest expense	0	49	343
Interest expense	$ 971	$ 593	$ 924

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Other Non-Current Liabilities (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 04, 2017	Feb. 27, 2016
Other Liabilities Disclosure [Abstract]
Deferred benefit from New Markets Tax Credit transactions	$ 16,708	$ 10,741
Retirement plan obligations	9,635	9,992
Deferred compensation plan	7,463	4,814
Other	11,981	11,367
Total other non-current liabilities	$ 45,787	$ 36,914

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Employee Benefit Plans (Schedule of Changes in Plan Assets, Changes in Projected Benefit Obligation, and Funded Status) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 04, 2017	Feb. 27, 2016	Feb. 28, 2015
Change in projected benefit obligation
Benefit obligation beginning of period	$ 14,900	$ 16,253
Interest cost	555	566	$ 550
Actuarial loss (gain)	54	(907)
Benefits paid	(1,017)	(1,012)
Benefit obligation at measurement date	14,492	14,900	16,253
Change in plan assets
Fair value of plan assets beginning of period	4,261	4,419
Actual return on plan assets	73	(62)
Company contributions	868	916
Fair value of plan assets at measurement date	4,185	4,261	$ 4,419
Underfunded status	$ (10,307)	$ (10,639)

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Employee Benefit Plans (Amounts Recognized in Balance Sheet) (Details) - USD ($) $ in Thousands	Mar. 04, 2017	Feb. 27, 2016
Compensation and Retirement Disclosure [Abstract]
Current liabilities	$ (672)	$ (647)
Other non-current liabilities	(9,635)	(9,992)
Total	$ (10,307)	$ (10,639)

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Employee Benefit Plans (Schedule of Accumulated Other Comprehensive Loss That Have Not Yet Been Recognized as Components of Net Periodic Benefit Cost) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 04, 2017	Feb. 27, 2016	Feb. 28, 2015
Compensation and Retirement Disclosure [Abstract]
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Gains (Losses), before Tax	$ (5,696)	$ (5,899)
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), before Tax	$ 5,696	$ 5,899
Net periodic pension expense, Expected return on plan assets	2.00%	2.00%	4.50%

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Employee Benefit Plans (Amounts Recognized in Comprehensive Earnings) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 04, 2017	Feb. 27, 2016
Compensation and Retirement Disclosure [Abstract]
Net actuarial gain	$ (130)	$ (610)
Total	$ (130)	$ (610)

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Employee Benefit Plans (Schedule of Components of Defined Benefit Pension Plans Net Periodic Benefit Cost) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 04, 2017	Feb. 27, 2016	Feb. 28, 2015
Components of net periodic benefit cost
Interest cost	$ 555	$ 566	$ 550
Expected return on assets	(41)	(137)	(171)
Amortization of unrecognized net loss	225	249	172
Net periodic benefit cost	$ 739	$ 678	$ 551

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Employee Benefit Plans (Schedule of Assumptions Used) (Details)	12 Months Ended
	Mar. 04, 2017	Feb. 27, 2016	Feb. 28, 2015
Compensation and Retirement Disclosure [Abstract]
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate	3.85%	3.60%	4.00%
Discount rate	3.80%	3.85%	3.60%
Net periodic pension expense, Expected return on plan assets	2.00%	2.00%	4.50%

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Employee Benefit Plans (Schedule of Expected Benefit Payments) (Details) $ in Thousands	12 Months Ended
	Mar. 04, 2017 USD ($)
Compensation and Retirement Disclosure [Abstract]
Estimated future benefit payments	$ 1,016
2019	1,052
2020	1,026
2021	1,009
2022	984
2023-2027	$ 4,602

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Employee Benefit Plans (Details Textual) $ in Thousands	12 Months Ended
	Mar. 03, 2018 USD ($)	Mar. 04, 2017 USD ($) Facility	Feb. 27, 2016 USD ($)	Feb. 28, 2015 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Number of manufacturing facilities | Facility		2
Percentage employees are allowed to contribute (up to 60 percent)		60.00%
Annual company match amount		$ 6,200	$ 5,400	$ 4,700
Deferred compensation obligations		875	837
Investments in corporate-owned life insurance policies		7,700
Mutual funds		300
Total contribution to multi-employer union retirement plans		3,900	3,600	4,300
Estimated amortization from accumulated other comprehensive loss into net periodic benefit cost in the next fiscal year		200
Net periodic benefit cost		739	678	$ 551
Company contributions		868	916
Scenario, Forecast
Defined Benefit Plan Disclosure [Line Items]
Net periodic benefit cost	$ 700
Other current and non-current liabilities
Defined Benefit Plan Disclosure [Line Items]
Deferred compensation obligations		$ 7,700	$ 5,000
First one percent contributed
Defined Benefit Plan Disclosure [Line Items]
Company matching contribution percentage		100.00%
Percentage of eligible compensation contributed		1.00%
Two through six percent
Defined Benefit Plan Disclosure [Line Items]
Company matching contribution percentage		50.00%
Percentage of eligible compensation contributed		5.00%

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Commitments and Contingent Liabilities (Details) $ in Thousands	Mar. 04, 2017 USD ($)
Future minimum rental payments under noncancelable operating leases
Total minimum payments, Fiscal 2016	$ 11,419
Total minimum payments, Fiscal 2017	10,796
Total minimum payments, Fiscal 2018	9,286
Total minimum payments, Fiscal 2019	6,342
Total minimum payments, Fiscal 2020	5,605
Total minimum payments, Thereafter	9,002
Total	$ 52,450

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Commitments and Contingent Liabilities (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Mar. 04, 2017	Feb. 27, 2016
Guarantees and warranties
Balance at beginning of period	$ 16,340	$ 11,275
Additional accruals	11,499	8,214
Claims paid	(5,906)	(3,149)
Balance at end of period	$ 21,933	$ 16,340

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Commitments and Contingent Liabilities (Details Textual) $ in Thousands	12 Months Ended
	Mar. 04, 2017 USD ($) Sale_And_Leaseback_Agreement Facility	Feb. 27, 2016 USD ($)	Feb. 28, 2015 USD ($)
Long-term Purchase Commitment [Line Items]
Total rental expense	$ 16,900	$ 15,500	$ 18,700
Number of sale and leaseback agreements | Sale_And_Leaseback_Agreement	1
Average annual lease payment	$ 1,000
Company's backlog bonded by performance bonds	96,200
Face value of performance bonds	343,700
Total value of letter of credit	23,500
Line of Credit Facility, Maximum Borrowing Capacity	175,000
Purchase obligations	$ 115,800
Number of properties acquired with historical environmental conditions | Facility	1
Proceeds from new markets tax credit transaction, net of deferred costs	$ 6,000
Deferred benefit from New Markets Tax Credit transactions	16,708	10,741
Deferred Costs		4,500
Other current and non-current liabilities
Long-term Purchase Commitment [Line Items]
Deferred gain on sale leaseback arrangements	1,800
Current Liabilities and Other Non Current Liabilities
Long-term Purchase Commitment [Line Items]
Reserve for environmental liabilities	$ 1,400	$ 1,600

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Shareholders' Equity (Details Textual) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended		12 Months Ended			158 Months Ended
	Oct. 31, 2008	Jan. 31, 2008	Mar. 04, 2017	Feb. 27, 2016	Feb. 28, 2015	Mar. 04, 2017	Feb. 28, 2004
Class of Stock [Line Items]
Junior preferred stock, shares			200,000			200,000
Junior preferred stock par value			$ 1.00			$ 1.00
Share repurchases, shares			(250,000)	575,000	203,000
Stock Based Compensation Plans
Class of Stock [Line Items]
Adjustments Related to Tax Withholding for Share-based Compensation			$ 2.6	$ 5.1	$ 5.2
Share Repurchase Program
Class of Stock [Line Items]
Number of shares authorized under share repurchase program							1,500,000
Increase in authorized shares under the share repurchase program	1,000,000	750,000	1,000,000
Share repurchases, shares			250,001	575,000	203,509	3,307,633
Share repurchases, value			$ 10.8	$ 24.9	$ 6.9	$ 72.3
Remaining shares authorized to be repurchased			942,367,000			942,367,000

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Shareholders' Equity (Schedule of Accumulated Other Comprehensive Loss Net of Tax) (Details) - USD ($) $ in Thousands	Mar. 04, 2017	Feb. 27, 2016
Equity [Abstract]
Net unrealized (loss) gain on marketable securities	$ (4)	$ 79
Pension liability adjustments	(3,628)	(3,758)
Foreign currency translation adjustments	(27,458)	(27,692)
Total accumulated other comprehensive loss	$ (31,090)	$ (31,371)

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Stock-Based Compensation (Details) - USD ($)	12 Months Ended
	Mar. 04, 2017	Feb. 27, 2016	Feb. 28, 2015
Award transactions on stock options
Outstanding shares awards exercised	(163,000)	(200,000)	(146,000)
Award transactions on stock options, Weighted Average Exercise Price
Weighted average exercise price, Beginning	$ 11.81
Weighted average exercise price, Awards exercised	14.34
Weighted average exercise price, Ending	9.90	$ 11.81
Weighted average exercise price, Exercisable	$ 9.90
Weighted average remaining contractual life, Outstanding	4 years
Weighted average remaining contractual life, Exercisable	4 years
Aggregate intrinsic value, Outstanding	$ 11,101,695
Aggregate intrinsic value, Exercisable	$ 11,101,695
Options/SARs Outstanding
Award transactions on stock options
Outstanding, Beginning	403,714
Outstanding shares awards exercised	(173,813)
Outstanding, Ending	229,901	403,714
Outstanding shares exercisable	229,901

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Stock-Based Compensation (Details 1)	12 Months Ended
	Mar. 04, 2017 $ / shares shares
Nonvested share award transactions
Nonvested Number, Beginning | shares	275,457
Number of shares, Granted | shares	148,672	[1]
Number of shares, Vested | shares	(143,875)
Number of shares, Canceled | shares	(1,050)
Nonvested Number, Ending | shares	279,204
Nonvested share award transactions, Wieghted Average Grant Date Fair Value
Weighted average grant date fair value, Beginning | $ / shares	$ 37.48
Weighted average grant date fair value, Granted | $ / shares	42.90
Weighted average grant date fair value, Vested | $ / shares	28.81
Weighted average grant date fair value, Canceled | $ / shares	44.55
Weighted average grant date fair value, Ending | $ / shares	$ 44.80

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Stock-Based Compensation (Details Textual) - USD ($) $ in Thousands		12 Months Ended
		Mar. 04, 2017	Feb. 27, 2016	Feb. 28, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Term of outstanding options and SARs		10 years
Share-based Compensation		$ 6,000	$ 4,900	$ 4,793
Number of shares, Granted	[1]	148,672
Cash proceeds from exercise of stock options		$ 1,900	1,600	1,200
Aggregate intrinsic value of securities		6,000	$ 7,500	$ 4,600
Total unrecognized compensation cost related to nonvested share		$ 6,600
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period		6 months
Stock Appreciation Rights (SARs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period		3 years
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period		3 years
Weighted average period, Nonvested		20 months
Total fair value of shares vested		$ 6,300
2009 Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized for issuance		1,888,000
2009 Non-Employee Director Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized for issuance		350,000
Minimum | Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period		2 years
Maximum | Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period		4 years

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Income Taxes (Details Textual) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 04, 2017	Mar. 04, 2017	Feb. 27, 2016	Feb. 28, 2015
Operating Loss Carryforwards [Line Items]
Tax expense (benefit)		$ 37,015	$ 31,982	$ 14,483
Income tax payments, net of refunds		47,800	25,900	11,300
Tax benefit due to adoption of ASU 2016-09	$ 900
Tax benefits associated with stock-based incentive plans			3,900	3,300
Income Tax Credits and Adjustments		6,400
Total liability for unrecognized tax benefits	3,980	3,980	4,441
Tax benefits that if recognized would decrease the effective tax rate	2,100	2,100	2,700	2,600
Tax benefits that if recognized would result in adjustments to deferred taxes	2,000	2,000	1,800	$ 1,900
Reserve for interest and penalties	(400)	(400)	$ (500)
Decrease in total liability for unrecognized tax benefits due to audit settlements and lapsing of statutes		400
Foreign Tax Authority
Operating Loss Carryforwards [Line Items]
Tax expense (benefit)		(1,900)
State
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	5,500	5,500
Valuation allowance of net operating loss carryforwards	$ 2,400	$ 2,400

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Income Taxes (Schedule of Earnings (loss) before Income Taxes) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 04, 2017	Feb. 27, 2016	Feb. 28, 2015
Income Tax Disclosure [Abstract]
U.S.	$ 123,229	$ 100,859	$ 59,898
International	(424)	(3,535)	5,101
Earnings before income taxes	$ 122,805	$ 97,324	$ 64,999

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Income Taxes (Schedule of Components of Income Tax Expense (Benefit)) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 04, 2017	Feb. 27, 2016	Feb. 28, 2015
Current
Federal	$ 35,610	$ 35,888	$ 7,328
State and local	2,929	2,866	1,198
International	(147)	(636)	1,790
Total current	38,392	38,118	10,316
Deferred
Federal	(945)	(5,403)	4,738
State and local	(78)	(512)	(363)
International	(42)	(224)	(101)
Total deferred	(1,065)	(6,139)	4,274
Total non-current tax (benefit) expense	(312)	3	(107)
Total income tax expense	$ 37,015	$ 31,982	$ 14,483

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Income Taxes (Income Tax Reconciliation) (Details)	12 Months Ended
	Mar. 04, 2017	Feb. 27, 2016	Feb. 28, 2015
Income Tax Disclosure [Abstract]
Federal income tax expense at statutory rate	35.00%	35.00%	35.00%
Manufacturing deduction	(3.30%)	(3.40%)	(2.30%)
State and local income taxes, net of federal tax benefit	1.60%	1.60%	1.20%
Foreign tax rate differential	(1.60%)	0.00%	0.00%
Tax credits - research & development	(0.70%)	(0.80%)	(1.10%)
Tax credits - 48C	(0.00%)	(0.00%)	(9.90%)
Other, net	(0.90%)	0.50%	(0.60%)
Income tax expense	30.10%	32.90%	22.30%

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Income Taxes (Schedule of Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Thousands	Mar. 04, 2017	Feb. 27, 2016
Income Tax Disclosure [Abstract]
Accounts receivable, Current		$ 825
Accounts receivable, Noncurrent	$ 408	0
Other accruals, Current		2,968
Other accruals, Noncurrent	4,254	1,281
Deferred compensation, Current		554
Deferred compensation, Noncurrent	15,189	12,594
Goodwill and other intangibles, Current		18
Goodwill and other intangibles, Noncurrent	(7,601)	(7,615)
Depreciation, Current		0
Depreciation, Noncurrent	(18,714)	(17,354)
Liability for unrecognized tax benefits, Current		0
Liability for unrecognized tax benefits, Noncurrent	2,623	2,797
Net operating losses, Current		0
Net operating losses, Noncurrent	5,790	2,945
Valuation allowance on net operating losses, Current		(2,194)
Valuation allowance on net operating losses, Noncurrent	(2,352)	(306)
Other, Current		(351)
Other, Noncurrent	403	686
Deferred Tax Assets (Liabilities) Current		1,820
Deferred Tax Assets (Liabilities), Noncurrent	$ 0	$ (4,972)

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Income Taxes (Schedule of Unrecognized Tax Benefits) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 04, 2017	Feb. 27, 2016	Feb. 28, 2015
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Gross unrecognized tax benefits at beginning of year	$ 4,512	$ 4,491	$ 4,431
Gross increases in tax positions for prior years	54	60	261
Gross decreases in tax positions for prior years	(233)	(158)	(276)
Gross increases based on tax positions related to the current year	508	526	508
Gross decreases based on tax positions related to the current year	0	(33)	(21)
Settlements	(23)	0	(93)
Statute of limitations expiration	(743)	(374)	(319)
Gross unrecognized tax benefits at end of year	$ 4,075	$ 4,512	$ 4,491

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Quarterly Data (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Mar. 04, 2017	Nov. 26, 2016	Aug. 27, 2016	May 28, 2016	Feb. 27, 2016	Nov. 28, 2015	Aug. 29, 2015	May 30, 2015	Mar. 04, 2017	Feb. 27, 2016	Feb. 28, 2015
Quarterly Financial Information Disclosure [Abstract]
Net sales	$ 314,126	$ 274,072	$ 278,455	$ 247,880	$ 262,149	$ 238,324	$ 240,754	$ 239,962	$ 1,114,533	$ 981,189	$ 933,936
Gross profit	82,196	72,868	72,531	64,428	68,857	62,426	56,699	55,588	292,023	243,570	208,544
Net earnings	$ 23,119	$ 22,552	$ 22,397	$ 17,722	$ 19,935	$ 18,521	$ 14,760	$ 12,126	$ 85,790	$ 65,342	$ 50,516
Earnings per share - basic
Earnings per share - basic (USD per share)	$ 0.81	$ 0.78	$ 0.78	$ 0.62	$ 0.69	$ 0.64	$ 0.51	$ 0.42	$ 2.98	$ 2.25	$ 1.76
Earnings per share - diluted
Earnings per share - diluted (USD per share)	$ 0.80	$ 0.78	$ 0.77	$ 0.61	$ 0.69	$ 0.63	$ 0.50	$ 0.41	$ 2.97	$ 2.22	$ 1.72

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Earnings per Share (Details) - shares shares in Thousands	12 Months Ended
	Mar. 04, 2017	Feb. 27, 2016	Feb. 28, 2015
Reconciliation of basic and diluted earnings per share
Basic earnings per share - weighted average common shares outstanding	28,781	29,058	28,763
Weighted average effect of nonvested share grants and assumed exercise of stock options	112	317	611
Diluted earnings per share - weighted average common shares and potential common shares outstanding	28,893	29,375	29,374
Stock options excluded from the calculation of earnings per share because the exercise price was greater than the average market price of the common shares	0	0	0

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Business Segment Data (Details Textual) $ in Millions	12 Months Ended
	Mar. 04, 2017 USD ($) operating_segment	Feb. 27, 2016 USD ($)	Feb. 28, 2015 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments	4
Number of operating segments | operating_segment	5
Revenues | $	$ 76.2	$ 79.5	$ 72.7
Geographic Concentration Risk | Net export sales
Segment Reporting Information [Line Items]
Export net sales as a percentage of consolidated net sales (percentage)	7.00%	8.00%	8.00%

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Business Segment Data (Schedule of Certain Segment Data) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Mar. 04, 2017	Nov. 26, 2016	Aug. 27, 2016	May 28, 2016	Feb. 27, 2016	Nov. 28, 2015	Aug. 29, 2015	May 30, 2015	Mar. 04, 2017	Feb. 27, 2016	Feb. 28, 2015
Segment Reporting Information [Line Items]
Net sales	$ 314,126	$ 274,072	$ 278,455	$ 247,880	$ 262,149	$ 238,324	$ 240,754	$ 239,962	$ 1,114,533	$ 981,189	$ 933,936
Operating Income (Loss)									122,225	97,393	63,585
Depreciation and Amortization									35,607	31,248	29,423
Capital Expenditures									68,061	42,037	27,220
Identifiable Assets	784,658				657,440				784,658	657,440	612,057
Architectural Glass
Segment Reporting Information [Line Items]
Net sales									411,881	377,713	346,471
Operating Income (Loss)									44,656	35,504	16,431
Depreciation and Amortization									15,912	14,397	12,897
Capital Expenditures									44,439	17,701	12,307
Identifiable Assets	254,840				215,571				254,840	215,571	223,525
Architectural Services
Segment Reporting Information [Line Items]
Net sales									270,937	245,935	230,650
Operating Income (Loss)									18,494	11,687	7,442
Depreciation and Amortization									1,364	1,274	1,375
Capital Expenditures									1,981	929	595
Identifiable Assets	70,875				81,574				70,875	81,574	68,930
Architectural Framing Systems
Segment Reporting Information [Line Items]
Net sales									385,978	308,593	298,395
Operating Income (Loss)									44,768	31,911	21,808
Depreciation and Amortization									12,404	8,019	8,001
Capital Expenditures									14,070	19,166	9,238
Identifiable Assets	359,633				193,823				359,633	193,823	190,106
Large-Scale Optical
Segment Reporting Information [Line Items]
Net sales									89,710	88,541	87,693
Operating Income (Loss)									22,467	22,963	21,954
Depreciation and Amortization									4,785	4,998	4,817
Capital Expenditures									1,510	1,962	3,500
Identifiable Assets	58,198				57,369				58,198	57,369	60,356
Intersegment elimination
Segment Reporting Information [Line Items]
Net sales									(43,973)	(39,593)	(29,273)
Corporate and other
Segment Reporting Information [Line Items]
Operating Income (Loss)									(8,160)	(4,672)	(4,050)
Depreciation and Amortization									1,142	2,560	2,333
Capital Expenditures									6,061	2,279	1,580
Identifiable Assets	$ 41,112				$ 109,103				$ 41,112	$ 109,103	$ 69,140

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Business Segment Data (Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Mar. 04, 2017	Nov. 26, 2016	Aug. 27, 2016	May 28, 2016	Feb. 27, 2016	Nov. 28, 2015	Aug. 29, 2015	May 30, 2015	Mar. 04, 2017	Feb. 27, 2016	Feb. 28, 2015
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 314,126	$ 274,072	$ 278,455	$ 247,880	$ 262,149	$ 238,324	$ 240,754	$ 239,962	$ 1,114,533	$ 981,189	$ 933,936
Long-Lived Assets	246,748				202,462				246,748	202,462	193,540
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									1,031,214	923,018	847,887
Long-Lived Assets	227,145				189,624				227,145	189,624	178,048
CANADA
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									65,958	39,324	50,807
Long-Lived Assets	13,303				7,162				13,303	7,162	8,214
Brazil
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									17,361	18,847	35,242
Long-Lived Assets	$ 6,300				$ 5,676				$ 6,300	$ 5,676	$ 7,278

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Schedule - Valuation and Qualifying Accounts (Details) - Allowances for doubtful receivables - USD ($) $ in Thousands		12 Months Ended
		Mar. 04, 2017	Feb. 27, 2016	Feb. 28, 2015
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period		$ 2,497	$ 3,242	$ 2,934
Valuation Allowances and Reserves, Reserves of Businesses Acquired		25	0	0
Charged to Costs and Expenses		(416)	(197)	1,322
Deductions from Reserves	[1]	579	493	969
Other changes add (deduct)	[2]	(32)	(55)	(45)
Balance at End of Period		$ 1,495	$ 2,497	$ 3,242

[1] Net of recoveries

[2] Result of foreign currency effects