Exhibit 23
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We consent to the incorporation by reference in Registration Statement No. 333-144133 on Form S-8 of Apogee Enterprises, Inc., of our report dated June 29, 2011 (which report expresses an unqualified opinion and includes an explanatory paragraph relating to the change in Apogee Enterprises, Inc. 401(k) Retirement Plan’s presentation of participant loans), relating to the financial statements and financial statement schedule of Apogee Enterprises, Inc. 401(k) Retirement Plan for the year ended December 31, 2010.
/s/ Deloitte & Touche LLP
Minneapolis, Minnesota
June 29, 2011
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