Document And Entity Information - shares	9 Months Ended
	Sep. 01, 2018	Sep. 21, 2018
Document Information [Line Items]
Entity Registrant Name	FULLER H B CO
Entity Central Index Key	0000039368
Trading Symbol	ful
Current Fiscal Year End Date	--12-01
Entity Filer Category	Large Accelerated Filer
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	Yes
Entity Common Stock, Shares Outstanding (in shares)		50,695,705
Document Type	10-Q
Document Period End Date	Sep. 01, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q3
Amendment Flag	false