WARRANTY LIABILITY (Tables)

12 Months Ended

Sep. 30, 2022

Product Warranties Disclosures [Abstract]

Schedule of Product Warranty Liability

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

	Years Ended September 30,
	2022		2021
Balance, beginning of period	$	7,818	$	6,268
Warranties issued and changes in estimated pre-existing warranties	19,028		15,560
Actual warranty costs incurred	(16,413)		(14,010)
Other warranty liabilities assumed from acquisitions	$	6,353	$	—
Balance, end of period	$	16,786	$	7,818