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Segment Information
 9 Months Ended
Nov. 28, 2020
Segment Reporting [Abstract]  
Segment Information Segment Information
The Company has four reporting segments: Architectural Framing Systems, Architectural Glass, Architectural Services and LSO.
•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.
•The Architectural Glass segment fabricates coated, high-performance glass used in customized window and wall systems comprising the outside skin of commercial, institutional and high-end multi-family residential buildings.
•The Architectural Services segment designs, engineers, fabricates and installs the walls of glass, windows and other curtainwall products making up the outside skin of commercial and institutional buildings.
•The LSO segment manufactures value-added glass and acrylic products primarily for framing and display applications.
Three Months EndedNine Months Ended
(In thousands)November 28, 2020November 30, 2019November 28, 2020November 30, 2019
Net sales
Architectural Framing Systems$136,688 $165,517 $439,779 $533,432 
Architectural Glass84,779 89,433 248,274 288,862 
Architectural Services76,690 69,043 213,911 195,787 
Large-Scale Optical25,267 24,405 48,438 66,449 
Intersegment eliminations(9,841)(10,482)(28,240)(34,190)
Net sales$313,583 $337,916 $922,162 $1,050,340 
Operating income (loss)
Architectural Framing Systems$7,218 $6,345 $26,211 $34,141 
Architectural Glass10,825 4,092 15,306 16,951 
Architectural Services8,558 6,533 20,470 15,082 
Large-Scale Optical(1)
26,114 6,754 25,131 15,561 
Corporate and other(2,965)(2,130)(7,685)(9,525)
Operating income$49,750 $21,594 $79,433 $72,210 
(1) LSO operating income amounts for the three- and nine-month periods ended November 28, 2020 include a $19.3 million gain on the sale-lease back of a building.

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