Exhibit 99.4

FORM OF LETTER TO CLIENTS OF NOMINEE HOLDERS

BLUELINX HOLDINGS INC.

[   •   ] Shares of Common Stock
Offered Pursuant to Rights Distributed to Record Stockholders of
BlueLinx Holdings Inc.

To Our Clients:

      Enclosed for your consideration are the Prospectus, dated [   •   ], 2013 (the “Prospectus”), and the Instructions for Use of BlueLinx Holdings Inc. Subscription Rights Certificates relating to the offering (the “Rights Offering”) by BlueLinx Holdings Inc. (the “Company”) of shares of its Common Stock, par value $0.01 per share (the “Common Stock”), pursuant to non-transferable subscription rights (the “Rights”) distributed to all holders of record of shares of Common Stock, at the close of business on [   •   ], 2013 (the “Record Date”). The Rights are described in the Company’s Prospectus.

      In the Rights Offering, the Company is offering an aggregate of [   •   ] shares of its Common Stock (the “Underlying Shares”) pursuant to the Prospectus. The Rights will expire, if not exercised, by 5:00 p.m., New York City time, on [   •   ], 2013, unless extended by the Board of Directors of the Company (as it may be extended, the “Expiration Date”).

     As described in the accompanying Prospectus, you will receive one Right for every share of Common Stock carried by us in your account as of the Record Date.

     Each Right allows the holder thereof to subscribe for [   •   ] of a share of Common Stock (the “Basic Subscription Right”) at the cash price of $[   •   ] per whole share (the “Subscription Price”). Fractional shares or cash in lieu of fractional shares will not be issued in the Rights Offering. Fractional shares will be rounded down to the nearest whole number. As an example, if you owned 1,000 shares of Common Stock as of the Record Date, you would receive 1,000 subscription rights pursuant to your Basic Subscription Right that would entitle you to purchase [   •   ] shares of common stock ([   •   ] rounded down to the nearest whole share) at a subscription price of $[   •   ] per whole share.  

     In addition, each holder of Rights who exercises his Basic Subscription Right in full will be eligible to subscribe (the “Over- Subscription Privilege”), at the same Subscription Price of $[   •   ] per whole share, for additional shares of Common Stock if any Underlying Shares are not purchased by other holders of Rights under their Basic Subscription Rights as of the Expiration Date (the “Excess Shares”).  Each holder of Rights may exercise his Over-Subscription Privilege only if he exercised his Basic Subscription Right in full and other holders of Rights do not exercise their Basic Subscription Rights in full. If there is not a sufficient number of Excess Shares to satisfy all requests for subscriptions made under the Over-Subscription Privilege, the Company will allocate the remaining Excess Shares pro rata, after eliminating all fractional shares, among those Rights holders who exercised their Over-Subscription Privileges in proportion to the number of shares of Common Stock owned by such Right holder on the Record Date, relative to the number of shares of Common Stock owned on the Record Date by all Right holders exercising their Over-Subscription Privilege.  If this pro rata allocation results in any person receiving a greater number of Excess Shares than the person subscribed for pursuant to the exercise of the Over-Subscription Privilege, then such person will be allocated only that number of Excess Shares for which the person over-subscribed, and the remaining Excess Shares will be re-allocated among all other persons exercising the Over-Subscription Privilege on the same pro rata basis described above.  The proration process will be repeated until all Excess Shares have been allocated.  For the purposes of determining their eligibility for the Over-Subscription Privilege, holders will be deemed to have exercised their Rights under the Basic Subscription Right in full if they subscribe for the maximum number of whole Underlying Shares available under their Basic Subscription Right. See “The Rights Offering—The Subscription Rights” in the Prospectus.