April 1, 2005


Mail Stop 0510

Via U.S. mail and facsimile

Mr. Todd R. Moore
Vice President and General Counsel
NCI Building Systems, Inc.
10943 North Sam Houston Parkway West
Houston, TX 77064

Re: 	NCI Building Systems, Inc.
Form S-3/A filed March 3, 2005
File No. 333-122457

Dear Mr. Moore:

      We have reviewed your supplemental response and have the
following comments.  Where indicated, we think you should revise
your
document in response to these comments.  If you disagree, we will
consider your explanation as to why our comment is inapplicable or
a
revision is unnecessary.  Please be as detailed as necessary in
your
explanation.  In some of our comments, we may ask you to provide
us
with supplemental information so we may better understand your
disclosure.  After reviewing this information, we may or may not
raise additional comments.

      Please understand that the purpose of our review process is
to
assist you in your compliance with the applicable disclosure
requirements and to enhance the overall disclosure in your filing.
We look forward to working with you in these respects.  We welcome
any questions you may have about our comments or on any other
aspect
of our review.  Feel free to call us at the telephone numbers
listed
at the end of this letter.

Exhibit 5.1

1. We reissue prior comment 2 as it relates to the limitations set
forth in the first paragraph on page 3 of the legal opinion.
Counsel`s opinion as to the Rights must address the state contract
law governing the Rights Agreement.  In this regard, we note that
it
appears that the Rights Agreement is governed by the contract law
of
the State of Delaware.
2. We note the second qualification set forth in opinion (3)
relating
to fiduciary considerations.  Counsel may not limit its opinion in
this manner.  Please revise accordingly.

*	*	*	*

      As appropriate, please amend your registration statement in
response to these comments.  You may wish to provide us with
marked
copies of the amendment to expedite our review.  Please furnish a
cover letter that is filed on EDGAR with your amendment that keys
your responses to our comments and provides any requested
supplemental information.  Detailed cover letters greatly
facilitate
our review.  Please understand that we may have additional
comments
after reviewing your amendment and responses to our comments.

      We urge all persons who are responsible for the accuracy and
adequacy of the disclosure in your registration statement to be
certain that they have provided all information investors require
for
an informed decision.  Since the company and its management are in
possession of all facts relating to a company`s disclosure, they
are
responsible for the accuracy and adequacy of the disclosures they
have made.

      Notwithstanding our comments, in the event the company
requests
acceleration of the effective date of the pending registration
statement, it should furnish a letter, at the time of such
request,
acknowledging that:

* the company is responsible for the adequacy and accuracy of the
disclosure in its filing;

* staff comments or changes to disclosure in response to staff
comments do not foreclose the Commission from taking any action
with
respect to the filing; and

* the company may not assert staff comments as a defense in any
proceeding initiated by the Commission or any person under the
federal securities laws of the United States.

      In addition, please be advised that the Division of
Enforcement
has access to all information you provide to the staff of the
Division of Corporation Finance in our review of your filing or in
response to our comments on your filing.

      We will consider a written request for acceleration of the
effective date of the registration statement as a confirmation of
the
fact that those requesting acceleration are aware of their
respective
responsibilities under the Securities Act of 1933 and the
Securities
Exchange Act of 1934 as they relate to the proposed public
offering
of the securities specified in the above registration statement.
We
will act on the request and, pursuant to delegated authority,
grant
acceleration of the effective date.

      We direct your attention to Rules 460 and 461 regarding
requesting acceleration of a registration statement.  Please allow
adequate time after the filing of any amendment for further review
before submitting a request for acceleration.  Please provide this
request at least two business days in advance of the requested
effective date.

      If you have any questions regarding the foregoing, please do
not hesitate to call Andrew Schoeffler, Staff Attorney, at (202)
824-
5612 or, in his absence, Chris Edwards, Senior Staff Attorney, at
(202) 942-2842.

Sincerely,



Pamela A. Long
Assistant Director


cc:	Kelly B. Rose, Esq.
Baker Botts L.L.P.
910 Louisiana
One Shell Plaza
Houston, TX 77002
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Mr. Todd R. Moore
April 1, 2005
Page 1 of 3




UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549-0510

         DIVISION OF
CORPORATION FINANCE