    <SEC-DOCUMENT>0000920371-17-000160-index.html : 20171030
    <SEC-HEADER>0000920371-17-000160.hdr.sgml : 20171030
    <ACCEPTANCE-DATETIME>20171030162659
    ACCESSION NUMBER:		0000920371-17-000160
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		22
    CONFORMED PERIOD OF REPORT:	20171030
    ITEM INFORMATION:		Results of Operations and Financial Condition
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20171030
    DATE AS OF CHANGE:		20171030

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			SIMPSON MANUFACTURING CO INC /CA/
    		CENTRAL INDEX KEY:			0000920371
    		STANDARD INDUSTRIAL CLASSIFICATION:	CUTLERY, HANDTOOLS & GENERAL HARDWARE [3420]
    		IRS NUMBER:				943196943
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-13429
    		FILM NUMBER:		171162650

    	BUSINESS ADDRESS:
    		STREET 1:		5956 W LAS POSITAS BLVD
    		CITY:			PLEASANTON
    		STATE:			CA
    		ZIP:			94588
    		BUSINESS PHONE:		9255609000

    	MAIL ADDRESS:
    		STREET 1:		5956 W LAS POSITAS BLVD
    		CITY:			PLEASANTON
    		STATE:			CA
    		ZIP:			94588
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>8-K
    <SEQUENCE>1
    <FILENAME>ssdq320178kpressrelease.htm
    <DESCRIPTION>8-K
    <TEXT>
    Document 1 - file: ssdq320178kpressrelease.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>2
    <FILENAME>q32017ex991pressrelease.htm
    <DESCRIPTION>EXHIBIT 99.1
    <TEXT>
    Document 2 - file: q32017ex991pressrelease.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.2
    <SEQUENCE>3
    <FILENAME>ex992ssdq3earningssupple.htm
    <DESCRIPTION>EXHIBIT 99.2
    <TEXT>
    Document 3 - file: ex992ssdq3earningssupple.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>ex992ssdq3earningssupple001.jpg
    <TEXT>
    Document 4 - file: ex992ssdq3earningssupple001.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>ex992ssdq3earningssupple002.jpg
    <TEXT>
    Document 5 - file: ex992ssdq3earningssupple002.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>ex992ssdq3earningssupple003.jpg
    <TEXT>
    Document 6 - file: ex992ssdq3earningssupple003.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>ex992ssdq3earningssupple004.jpg
    <TEXT>
    Document 7 - file: ex992ssdq3earningssupple004.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>ex992ssdq3earningssupple005.jpg
    <TEXT>
    Document 8 - file: ex992ssdq3earningssupple005.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>ex992ssdq3earningssupple006.jpg
    <TEXT>
    Document 9 - file: ex992ssdq3earningssupple006.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>ex992ssdq3earningssupple007.jpg
    <TEXT>
    Document 10 - file: ex992ssdq3earningssupple007.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>ex992ssdq3earningssupple008.jpg
    <TEXT>
    Document 11 - file: ex992ssdq3earningssupple008.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>12
    <FILENAME>ex992ssdq3earningssupple009.jpg
    <TEXT>
    Document 12 - file: ex992ssdq3earningssupple009.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>13
    <FILENAME>ex992ssdq3earningssupple010.jpg
    <TEXT>
    Document 13 - file: ex992ssdq3earningssupple010.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>14
    <FILENAME>ex992ssdq3earningssupple011.jpg
    <TEXT>
    Document 14 - file: ex992ssdq3earningssupple011.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>15
    <FILENAME>ex992ssdq3earningssupple012.jpg
    <TEXT>
    Document 15 - file: ex992ssdq3earningssupple012.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>16
    <FILENAME>ex992ssdq3earningssupple013.jpg
    <TEXT>
    Document 16 - file: ex992ssdq3earningssupple013.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>17
    <FILENAME>ex992ssdq3earningssupple014.jpg
    <TEXT>
    Document 17 - file: ex992ssdq3earningssupple014.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>18
    <FILENAME>ex992ssdq3earningssupple015.jpg
    <TEXT>
    Document 18 - file: ex992ssdq3earningssupple015.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>19
    <FILENAME>ex992ssdq3earningssupple016.jpg
    <TEXT>
    Document 19 - file: ex992ssdq3earningssupple016.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>20
    <FILENAME>ex992ssdq3earningssupple017.jpg
    <TEXT>
    Document 20 - file: ex992ssdq3earningssupple017.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>21
    <FILENAME>ex992ssdq3earningssupple018.jpg
    <TEXT>
    Document 21 - file: ex992ssdq3earningssupple018.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>22
    <FILENAME>ex992ssdq3earningssupple019.jpg
    <TEXT>
    Document 22 - file: ex992ssdq3earningssupple019.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>