Document and Entity Information (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Feb. 28, 2015	Apr. 24, 2015	Aug. 30, 2014
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	Feb. 28, 2015
Amendment Flag	false
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	FY
Current Fiscal Year End Date	--02-28
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		29,181,874
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Public Float			$ 1,057