WARRANTY LIABILITY (Tables)

9 Months Ended

Jun. 30, 2022

Product Warranties Disclosures [Abstract]

Summary of Changes in Warranty Liability, Included in Accrued Liabilities

Changes in Griffon’s warranty liability, included in Accrued liabilities, were as follows:

	Three Months Ended June 30,				Nine Months Ended June 30,
	2022		2021		2022		2021
Balance, beginning of period	$	17,958	$	7,920	$	7,818	$	6,268
Warranties issued and changes in estimated pre-existing warranties	5,119		3,579		14,368		12,088
Actual warranty costs incurred	(4,937)		(2,952)		(10,399)		(9,809)
Other warranty liabilities assumed from acquisitions	—		—		6,353		—
Balance, end of period	$	18,140	$	8,547	$	18,140	$	8,547