v3.19.2
Cover Cover
Aug. 01, 2019
Cover page.  
Document Type 8-K
Amendment Flag false
Document Period End Date Aug. 01, 2019
Entity Registrant Name GRIFFON CORPORATION
Entity Central Index Key 0000050725
Entity Incorporation, State or Country Code DE
Entity File Number 1-06620
Entity Tax Identification Number 11-1893410
Entity Address, Address Line One 712 Fifth Avenue, 18th Floor
Entity Address, City or Town New York
Entity Address, State or Province NY
Entity Address, Postal Zip Code 10019
City Area Code 212
Local Phone Number 957-5000
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock, $0.25 par value
Trading Symbol GFF
Security Exchange Name NYSE
Entity Emerging Growth Company false