Document and Entity Information - shares	3 Months Ended
	Jun. 02, 2018	Jul. 11, 2018
Document and Entity Information [Abstract]
Entity Registrant Name	APOGEE ENTERPRISES, INC.
Entity Central Index Key	0000006845
Document Type	10-Q
Document Period End Date	Jun. 02, 2018
Amendment Flag	false
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q1
Current Fiscal Year End Date	--03-02
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		28,271,461