WARRANTY LIABILITY (Tables)

9 Months Ended

Jun. 30, 2023

Product Warranties Disclosures [Abstract]

Summary of Changes in Warranty Liability, Included in Accrued Liabilities

Changes in Griffon’s warranty liability for the three and nine months ended June 30, 2023 and 2022 were as follows:

	Three Months Ended June 30,				Nine Months Ended June 30,
	2023		2022		2023		2022
Balance, beginning of period	$	21,341	$	19,197	$	18,026	$	7,818
Warranties issued and changes in estimated pre-existing warranties	4,999		5,119		16,079		14,368
Actual warranty costs incurred	(3,402)		(4,937)		(11,167)		(10,399)
Other warranty liabilities assumed from acquisitions	—		—		—		7,592
Balance, end of period	$	22,938	$	19,379	$	22,938	$	19,379