    <SEC-DOCUMENT>0001308179-18-000087-index.html : 20180327
    <SEC-HEADER>0001308179-18-000087.hdr.sgml : 20180327
    <ACCEPTANCE-DATETIME>20180327090116
    ACCESSION NUMBER:		0001308179-18-000087
    CONFORMED SUBMISSION TYPE:	PRE 14A
    PUBLIC DOCUMENT COUNT:		47
    CONFORMED PERIOD OF REPORT:	20180327
    FILED AS OF DATE:		20180327
    DATE AS OF CHANGE:		20180327

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			CDW Corp
    		CENTRAL INDEX KEY:			0001402057
    		STANDARD INDUSTRIAL CLASSIFICATION:	RETAIL-CATALOG & MAIL-ORDER HOUSES [5961]
    		IRS NUMBER:				260273989
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		PRE 14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-35985
    		FILM NUMBER:		18714183

    	BUSINESS ADDRESS:
    		STREET 1:		200 N MILWAUKEE AVENUE
    		CITY:			VERNON HILLS
    		STATE:			IL
    		ZIP:			60061
    		BUSINESS PHONE:		847-465-6000

    	MAIL ADDRESS:
    		STREET 1:		200 N MILWAUKEE AVENUE
    		CITY:			VERNON HILLS
    		STATE:			IL
    		ZIP:			60061

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	VH Holdings, Inc.
    		DATE OF NAME CHANGE:	20070605
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>PRE 14A
    <SEQUENCE>1
    <FILENAME>lcdw2018_pre14a.htm
    <DESCRIPTION>CDW CORPORATION - PRE 14A
    <TEXT>
    Document 1 - file: lcdw2018_pre14a.htm

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    <SEQUENCE>2
    <FILENAME>check.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 2 - file: check.jpg

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    <FILENAME>check1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: check1.jpg

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    <FILENAME>check2.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 4 - file: check2.jpg

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    <FILENAME>cross.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 5 - file: cross.jpg

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    <DESCRIPTION>GRAPHIC
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    Document 7 - file: lcdwx1x1.jpg

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    <FILENAME>lcdwx2x1.jpg
    <DESCRIPTION>GRAPHIC
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    Document 8 - file: lcdwx2x1.jpg

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    <FILENAME>lcdwx2x2.jpg
    <DESCRIPTION>GRAPHIC
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    Document 9 - file: lcdwx2x2.jpg

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    <DESCRIPTION>GRAPHIC
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    Document 10 - file: lcdwx4x1.jpg

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    <DESCRIPTION>GRAPHIC
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    Document 11 - file: lcdwx4x2.jpg

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    <DESCRIPTION>GRAPHIC
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    Document 12 - file: lcdwx5x2.jpg

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    <DESCRIPTION>GRAPHIC
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    Document 13 - file: lcdwx8x1.jpg

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    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 14 - file: lcdwx8x2.jpg

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    <DESCRIPTION>GRAPHIC
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    Document 15 - file: lcdwx8x3.jpg

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    Document 16 - file: lcdwx8x4.jpg

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    <DESCRIPTION>GRAPHIC
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    Document 17 - file: lcdwx9x1.jpg

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    <DESCRIPTION>GRAPHIC
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    Document 18 - file: lcdwx10x1.jpg

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    <FILENAME>lcdwx11x1.jpg
    <DESCRIPTION>GRAPHIC
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    Document 19 - file: lcdwx11x1.jpg

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    Document 20 - file: lcdwx12x1.jpg

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    Document 21 - file: lcdwx12x2.jpg

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    <DESCRIPTION>GRAPHIC
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    Document 22 - file: lcdwx13x1.jpg

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    <DESCRIPTION>GRAPHIC
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    Document 23 - file: lcdwx20x1.jpg

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    <FILENAME>lcdwx21x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 24 - file: lcdwx21x1.jpg

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    <DESCRIPTION>GRAPHIC
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    Document 25 - file: lcdwx21x2.jpg

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    <DESCRIPTION>GRAPHIC
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    Document 26 - file: lcdwx22x1.jpg

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    <SEQUENCE>27
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    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 27 - file: lcdwx23x1.jpg

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    <SEQUENCE>28
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    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 28 - file: lcdwx24x1.jpg

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    <SEQUENCE>29
    <FILENAME>lcdwx24x2.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 29 - file: lcdwx24x2.jpg

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    <FILENAME>lcdwx25x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 30 - file: lcdwx25x1.jpg

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    <SEQUENCE>31
    <FILENAME>lcdwx25x2.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 31 - file: lcdwx25x2.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>32
    <FILENAME>lcdwx26x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 32 - file: lcdwx26x1.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>33
    <FILENAME>lcdwx26x2.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 33 - file: lcdwx26x2.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>34
    <FILENAME>lcdwx34x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 34 - file: lcdwx34x1.jpg

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    <TYPE>GRAPHIC
    <SEQUENCE>35
    <FILENAME>lcdwx35x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 35 - file: lcdwx35x1.jpg

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    <TYPE>GRAPHIC
    <SEQUENCE>36
    <FILENAME>lcdwx36x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 36 - file: lcdwx36x1.jpg

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    <TYPE>GRAPHIC
    <SEQUENCE>37
    <FILENAME>lcdwx36x2.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 37 - file: lcdwx36x2.jpg

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    <SEQUENCE>38
    <FILENAME>lcdwx41x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 38 - file: lcdwx41x1.jpg

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    <SEQUENCE>39
    <FILENAME>lcdwx43x1.jpg
    <DESCRIPTION>GRAPHIC
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    Document 39 - file: lcdwx43x1.jpg

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    <SEQUENCE>40
    <FILENAME>lcdwx62x1.jpg
    <DESCRIPTION>GRAPHIC
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    Document 40 - file: lcdwx62x1.jpg

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    <SEQUENCE>41
    <FILENAME>lcdwx73x1.jpg
    <DESCRIPTION>GRAPHIC
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    Document 41 - file: lcdwx73x1.jpg

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    <FILENAME>proxy1.jpg
    <DESCRIPTION>GRAPHIC
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    Document 42 - file: proxy1.jpg

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    <FILENAME>proxy2.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 43 - file: proxy2.jpg

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    <FILENAME>redcheck.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 44 - file: redcheck.jpg

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    <FILENAME>tick1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 45 - file: tick1.jpg

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    <FILENAME>tick2.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 46 - file: tick2.jpg

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    <FILENAME>uncheck.jpg
    <DESCRIPTION>GRAPHIC
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    Document 47 - file: uncheck.jpg

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