<SEC-DOCUMENT>0000920371-17-000133.txt : 20171003
<SEC-HEADER>0000920371-17-000133.hdr.sgml : 20171003
<ACCEPTANCE-DATETIME>20171003131628
ACCESSION NUMBER:		0000920371-17-000133
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20170928
FILED AS OF DATE:		20171003
DATE AS OF CHANGE:		20171003

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Leung Sunny H
		CENTRAL INDEX KEY:			0001663072

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13429
		FILM NUMBER:		171117049

	MAIL ADDRESS:	
		STREET 1:		C/O SIMPSON MANUFACTURING CO., INC.
		STREET 2:		5956 W. LAS POSITAS BLVD.
		CITY:			PLEASANTON
		STATE:			CA
		ZIP:			94588

ISSUER:		

	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

	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>4
<SEQUENCE>1
<FILENAME>wf-form4_150705097535383.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2017-09-28</periodOfReport>

    <notSubjectToSection16>1</notSubjectToSection16>

    <issuer>
        <issuerCik>0000920371</issuerCik>
        <issuerName>SIMPSON MANUFACTURING CO INC /CA/</issuerName>
        <issuerTradingSymbol>SSD</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001663072</rptOwnerCik>
            <rptOwnerName>Leung Sunny H</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>5956 W. LAS POSITAS BLVD.</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>PLEASANTON</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94588</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>1</isOther>
            <officerTitle></officerTitle>
            <otherText>See Remarks</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable></nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes></footnotes>

    <remarks>This &quot;Exit&quot; Form 4 is filed solely to report that the filer is not a Section 16 reporting person of Simpson Manufacturing Company Inc. (the &quot;Issuer&quot;).  On September 28, 2017, the Board of Directors of the Issuer determined and resolved that the filer, the Issuer's Vice President, has not been and is not in charge of any principal business unit, division or function of the Issuer, and has not performed and is not performing any policy making function for the Issuer, and therefore, has not been and is not an &quot;executive officer&quot; or &quot;officer&quot; of the Issuer as such terms are defined under the Securities Exchange Act of 1934, as amended, and the rules promulgated thereunder, at any time, including during the Issuer's fiscal years starting on January 1, 2016 and on January 1, 2017.  As of the date hereof, the filer remains employed with the Issuer.</remarks>

    <ownerSignature>
        <signatureName>/s/SUNNY H. LEUNG</signatureName>
        <signatureDate>2017-10-03</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
