WARRANTY LIABILITY (Tables)

3 Months Ended

Dec. 31, 2019

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 December 31,
	2019			2018
Balance, beginning of period	$	7,894		$	8,174
Warranties issued and changes in estimated pre-existing warranties	3,365			4,061
Actual warranty costs incurred	(3,915		)	(3,194		)
Balance, end of period	$	7,344		$	9,041