Organization	9 Months Ended
Sep. 30, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization	Organization Stock Building Supply Holdings, Inc., formerly known as Saturn Acquisition Holdings, LLC ("Saturn"), and its subsidiaries (the “Company,” “we,” “us,” “our,” and “management”) distributes lumber and building materials to new construction and repair and remodel contractors. Additionally, we provide solution-based services to our customers, including component design, production specification and installation management services. On May 2, 2013, Saturn filed a Certificate of Conversion with the Secretary of State of the State of Delaware to effect a conversion from a Delaware limited liability company to a Delaware corporation and change the name of Saturn to Stock Building Supply Holdings, Inc. In connection with the conversion to a corporation, each one share of Class A common stock, Class B common stock, Redeemable Class A Junior Preferred stock and Convertible Class C Preferred stock converted into one share of the same class of the converted entity. Each share of Redeemable Class B Senior Preferred stock converted into 1.02966258 shares of the same class of the converted entity (with the additional shares representing the accumulated dividends thereon to the date of the conversion). On July 29, 2013, the Company filed an amendment to its Certificate of Incorporation effecting a 25.972-for-1 stock split of the Company’s common stock. The consolidated financial statements give retroactive effect to the stock split. Due to the seasonal nature of our industry, sales are usually lower in the first and fourth quarters than in the second and third quarters.

Organization

9 Months Ended

Sep. 30, 2013

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Stock Building Supply Holdings, Inc., formerly known as Saturn Acquisition Holdings, LLC ("Saturn"), and its subsidiaries (the “Company,” “we,” “us,” “our,” and “management”) distributes lumber and building materials to new construction and repair and remodel contractors. Additionally, we provide solution-based services to our customers, including component design, production specification and installation management services.

On May 2, 2013, Saturn filed a Certificate of Conversion with the Secretary of State of the State of Delaware to effect a conversion from a Delaware limited liability company to a Delaware corporation and change the name of Saturn to Stock Building Supply Holdings, Inc. In connection with the conversion to a corporation, each one share of Class A common stock, Class B common stock, Redeemable Class A Junior Preferred stock and Convertible Class C Preferred stock converted into one share of the same class of the converted entity. Each share of Redeemable Class B Senior Preferred stock converted into 1.02966258 shares of the same class of the converted entity (with the additional shares representing the accumulated dividends thereon to the date of the conversion).

On July 29, 2013, the Company filed an amendment to its Certificate of Incorporation effecting a 25.972-for-1 stock split of the Company’s common stock. The consolidated financial statements give retroactive effect to the stock split.

Due to the seasonal nature of our industry, sales are usually lower in the first and fourth quarters than in the second and third quarters.