<SEC-DOCUMENT>0000050725-15-000048-index.html : 20150501
<SEC-HEADER>0000050725-15-000048.hdr.sgml : 20150501
<ACCEPTANCE-DATETIME>20150501114521
ACCESSION NUMBER:		0000050725-15-000048
CONFORMED SUBMISSION TYPE:	S-3
PUBLIC DOCUMENT COUNT:		5
FILED AS OF DATE:		20150501
DATE AS OF CHANGE:		20150501

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			GRIFFON CORP
		CENTRAL INDEX KEY:			0000050725
		STANDARD INDUSTRIAL CLASSIFICATION:	METAL DOORS, SASH, FRAMES, MOLDING & TRIM [3442]
		IRS NUMBER:				111893410
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0930

	FILING VALUES:
		FORM TYPE:		S-3
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-203776
		FILM NUMBER:		15822797

	BUSINESS ADDRESS:	
		STREET 1:		712 FIFTH AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10019
		BUSINESS PHONE:		2129575000

	MAIL ADDRESS:	
		STREET 1:		712 FIFTH AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10019

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	INSTRUMENT SYSTEMS CORP /DE/
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
<DOCUMENT>
<TYPE>S-3
<SEQUENCE>1
<FILENAME>griffon-formsx320154x28.htm
<DESCRIPTION>S-3
<TEXT>
Document 1 - file: griffon-formsx320154x28.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>2
<FILENAME>exhibit51tos-3xdechertopin.htm
<DESCRIPTION>EXHIBIT 5.1
<TEXT>
Document 2 - file: exhibit51tos-3xdechertopin.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-12.1
<SEQUENCE>3
<FILENAME>gffs-4ex121.htm
<DESCRIPTION>EXHIBIT 12.1
<TEXT>
Document 3 - file: gffs-4ex121.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>4
<FILENAME>exhibit231gtconsents-3.htm
<DESCRIPTION>EXHIBIT 23.1
<TEXT>
Document 4 - file: exhibit231gtconsents-3.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>exhibit51tos3decherto_image1.gif
<TEXT>
Document 5 - file: exhibit51tos3decherto_image1.gif

</DOCUMENT>
</SEC-DOCUMENT>