Document And Entity Information - USD ($)	12 Months Ended
	Dec. 01, 2018	Jan. 22, 2019	Jun. 01, 2017
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 Emerging Growth Company	false
Entity Small Business	false
Entity Common Stock, Shares Outstanding (in shares)		50,767,021
Entity Public Float			$ 2,601,453,076
Document Type	10-K
Document Period End Date	Dec. 01, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	FY
Amendment Flag	false
Entity Shell Company	false