<SEC-DOCUMENT>0000050725-22-000044-index.html : 20220411
<SEC-HEADER>0000050725-22-000044.hdr.sgml : 20220411
<ACCEPTANCE-DATETIME>20220411160817
ACCESSION NUMBER:		0000050725-22-000044
CONFORMED SUBMISSION TYPE:	8-K/A
PUBLIC DOCUMENT COUNT:		47
CONFORMED PERIOD OF REPORT:	20220128
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20220411
DATE AS OF CHANGE:		20220411

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:		8-K/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-06620
		FILM NUMBER:		22819760

	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>8-K/A
<SEQUENCE>1
<FILENAME>gff-20220128.htm
<DESCRIPTION>8-K/A
<TEXT>
Document 1 - file: gff-20220128.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>2
<FILENAME>exhibit231consentofindepen.htm
<DESCRIPTION>EX-23.1
<TEXT>
Document 2 - file: exhibit231consentofindepen.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>3
<FILENAME>exhibit991midoceanhunter.htm
<DESCRIPTION>EX-99.1
<TEXT>
Document 3 - file: exhibit991midoceanhunter.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.2
<SEQUENCE>4
<FILENAME>exhibit992proforma.htm
<DESCRIPTION>EX-99.2
<TEXT>
Document 4 - file: exhibit992proforma.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.SCH
<SEQUENCE>5
<FILENAME>gff-20220128.xsd
<DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
<TEXT>
Document 5 - file: gff-20220128.xsd

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.LAB
<SEQUENCE>6
<FILENAME>gff-20220128_lab.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT
<TEXT>
Document 6 - file: gff-20220128_lab.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.PRE
<SEQUENCE>7
<FILENAME>gff-20220128_pre.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT
<TEXT>
Document 7 - file: gff-20220128_pre.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>exhibit991midoceanhunter001.jpg
<TEXT>
Document 8 - file: exhibit991midoceanhunter001.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>exhibit991midoceanhunter002.jpg
<TEXT>
Document 9 - file: exhibit991midoceanhunter002.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>exhibit991midoceanhunter003.jpg
<TEXT>
Document 10 - file: exhibit991midoceanhunter003.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>11
<FILENAME>exhibit991midoceanhunter004.jpg
<TEXT>
Document 11 - file: exhibit991midoceanhunter004.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>12
<FILENAME>exhibit991midoceanhunter005.jpg
<TEXT>
Document 12 - file: exhibit991midoceanhunter005.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>13
<FILENAME>exhibit991midoceanhunter006.jpg
<TEXT>
Document 13 - file: exhibit991midoceanhunter006.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>14
<FILENAME>exhibit991midoceanhunter007.jpg
<TEXT>
Document 14 - file: exhibit991midoceanhunter007.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>15
<FILENAME>exhibit991midoceanhunter008.jpg
<TEXT>
Document 15 - file: exhibit991midoceanhunter008.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>16
<FILENAME>exhibit991midoceanhunter009.jpg
<TEXT>
Document 16 - file: exhibit991midoceanhunter009.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>17
<FILENAME>exhibit991midoceanhunter010.jpg
<TEXT>
Document 17 - file: exhibit991midoceanhunter010.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>18
<FILENAME>exhibit991midoceanhunter011.jpg
<TEXT>
Document 18 - file: exhibit991midoceanhunter011.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>19
<FILENAME>exhibit991midoceanhunter012.jpg
<TEXT>
Document 19 - file: exhibit991midoceanhunter012.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>20
<FILENAME>exhibit991midoceanhunter013.jpg
<TEXT>
Document 20 - file: exhibit991midoceanhunter013.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>21
<FILENAME>exhibit991midoceanhunter014.jpg
<TEXT>
Document 21 - file: exhibit991midoceanhunter014.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>22
<FILENAME>exhibit991midoceanhunter015.jpg
<TEXT>
Document 22 - file: exhibit991midoceanhunter015.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>23
<FILENAME>exhibit991midoceanhunter016.jpg
<TEXT>
Document 23 - file: exhibit991midoceanhunter016.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>24
<FILENAME>exhibit991midoceanhunter017.jpg
<TEXT>
Document 24 - file: exhibit991midoceanhunter017.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>25
<FILENAME>exhibit991midoceanhunter018.jpg
<TEXT>
Document 25 - file: exhibit991midoceanhunter018.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>26
<FILENAME>exhibit991midoceanhunter019.jpg
<TEXT>
Document 26 - file: exhibit991midoceanhunter019.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>27
<FILENAME>exhibit991midoceanhunter020.jpg
<TEXT>
Document 27 - file: exhibit991midoceanhunter020.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>28
<FILENAME>exhibit991midoceanhunter021.jpg
<TEXT>
Document 28 - file: exhibit991midoceanhunter021.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>29
<FILENAME>exhibit991midoceanhunter022.jpg
<TEXT>
Document 29 - file: exhibit991midoceanhunter022.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>30
<FILENAME>exhibit991midoceanhunter023.jpg
<TEXT>
Document 30 - file: exhibit991midoceanhunter023.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>31
<FILENAME>exhibit991midoceanhunter024.jpg
<TEXT>
Document 31 - file: exhibit991midoceanhunter024.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>32
<FILENAME>exhibit991midoceanhunter025.jpg
<TEXT>
Document 32 - file: exhibit991midoceanhunter025.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>33
<FILENAME>exhibit991midoceanhunter026.jpg
<TEXT>
Document 33 - file: exhibit991midoceanhunter026.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>34
<FILENAME>exhibit991midoceanhunter027.jpg
<TEXT>
Document 34 - file: exhibit991midoceanhunter027.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>35
<FILENAME>exhibit991midoceanhunter028.jpg
<TEXT>
Document 35 - file: exhibit991midoceanhunter028.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>36
<FILENAME>exhibit991midoceanhunter029.jpg
<TEXT>
Document 36 - file: exhibit991midoceanhunter029.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>37
<FILENAME>exhibit991midoceanhunter030.jpg
<TEXT>
Document 37 - file: exhibit991midoceanhunter030.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>38
<FILENAME>exhibit991midoceanhunter031.jpg
<TEXT>
Document 38 - file: exhibit991midoceanhunter031.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>39
<FILENAME>exhibit991midoceanhunter032.jpg
<TEXT>
Document 39 - file: exhibit991midoceanhunter032.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>40
<FILENAME>R1.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 40 - file: R1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>41
<FILENAME>gff-20220128_htm.xml
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 41 - file: gff-20220128_htm.html

Document 41 - RAW XML: gff-20220128_htm.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>EXCEL
<SEQUENCE>42
<FILENAME>Financial_Report.xlsx
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 42 - file: Financial_Report.xlsx

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>43
<FILENAME>Show.js
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 43 - file: Show.js

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>44
<FILENAME>report.css
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 44 - file: report.css

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>45
<FILENAME>FilingSummary.xml
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 45 - file: FilingSummary.html

Document 45 - RAW XML: FilingSummary.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>JSON
<SEQUENCE>47
<FILENAME>MetaLinks.json
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 47 - file: MetaLinks.json

</DOCUMENT>
<DOCUMENT>
<TYPE>ZIP
<SEQUENCE>48
<FILENAME>0000050725-22-000044-xbrl.zip
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 48 - file: 0000050725-22-000044-xbrl.zip

</DOCUMENT>
</SEC-DOCUMENT>