<SEC-DOCUMENT>0000790051-19-000038.txt : 20190206
<SEC-HEADER>0000790051-19-000038.hdr.sgml : 20190206
<ACCEPTANCE-DATETIME>20190206155339
ACCESSION NUMBER:		0000790051-19-000038
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20190205
FILED AS OF DATE:		20190206
DATE AS OF CHANGE:		20190206

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SALA LAWRENCE A
		CENTRAL INDEX KEY:			0001157487

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-09278
		FILM NUMBER:		19571493

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CARLISLE COMPANIES INC
		CENTRAL INDEX KEY:			0000790051
		STANDARD INDUSTRIAL CLASSIFICATION:	FABRICATED RUBBER PRODUCTS, NEC [3060]
		IRS NUMBER:				311168055
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		16430 N. SCOTTSDALE RD.
		STREET 2:		SUITE 400
		CITY:			SCOTTSDALE
		STATE:			AZ
		ZIP:			85254
		BUSINESS PHONE:		480-781-5000

	MAIL ADDRESS:	
		STREET 1:		16430 N. SCOTTSDALE RD.
		STREET 2:		SUITE 400
		CITY:			SCOTTSDALE
		STATE:			AZ
		ZIP:			85254
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_154948640380895.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2019-02-05</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000790051</issuerCik>
        <issuerName>CARLISLE COMPANIES INC</issuerName>
        <issuerTradingSymbol>CSL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001157487</rptOwnerCik>
            <rptOwnerName>SALA LAWRENCE A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O CARLISLE COMPANIES INCORPORATED</rptOwnerStreet1>
            <rptOwnerStreet2>16430 N. SCOTTSDALE ROAD, SUITE 400</rptOwnerStreet2>
            <rptOwnerCity>SCOTTSDALE</rptOwnerCity>
            <rptOwnerState>AZ</rptOwnerState>
            <rptOwnerZipCode>85254</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable></nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Restricted Stock Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2019-02-05</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>1219</value>
                    <footnoteId id="F2"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F3"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F3"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>1219.0</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>21633</value>
                    <footnoteId id="F4"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Each restricted stock unit represents a right to receive one share of the issuer's common stock.</footnote>
        <footnote id="F2">Represents a grant of units from the issuer for services as a director of the issuer.</footnote>
        <footnote id="F3">The restricted stock units were fully vested on the date of grant and the vested shares will be delivered to the reporting person upon the reporting person's termination of service as a director of the issuer.</footnote>
        <footnote id="F4">Includes 283 units acquired through dividend reinvestment during the prior year.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Lawrence A. Sala by Ronald P. Fuss, attorney-in-fact</signatureName>
        <signatureDate>2019-02-06</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
