Document and Entity Information	6 Months Ended
	Sep. 01, 2012	Sep. 28, 2012
Document and Entity Information [Abstract]
Entity Registrant Name	APOGEE ENTERPRISES, INC.
Entity Central Index Key	0000006845
Document Type	10-Q
Document Period End Date	Sep. 01, 2012
Amendment Flag	false
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	Q2
Current Fiscal Year End Date	--03-02
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		28,384,132