Summary of Significant Accounting Policies	3 Months Ended
Apr. 01, 2017
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Basis of Presentation The accompanying unaudited Condensed Consolidated Financial Statements include the accounts of BlueLinx Holdings Inc. and its wholly owned subsidiaries (the “Company”). These financial statements have been prepared in accordance with the instructions to Form 10-Q and do not include all of the information and footnotes required by accounting principles generally accepted (“GAAP”) in the United States (“U.S.”) for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. These statements should be read in conjunction with the Consolidated Financial Statements and notes thereto included in the Company’s Annual Report on Form 10-K (the “Annual Report on Form 10-K”) for the year ended December 31, 2016, as filed with the Securities and Exchange Commission. New Accounting Standards Compensation - Retirement Benefits. In March 2017, the Financial Accounting Standards Board issued Accounting Standards Update (ASU) No. 2017-07, “Compensation - Retirement Benefits (Topic 715).” This standard will require that an employer report the service cost component in the same line item as other compensation costs arising from services rendered by the pertinent employees during the period, while the other components of net benefit cost are required to be presented in the income statement separately from the service cost component and outside a subtotal of income from operations. This ASU is effective for annual periods beginning after December 15, 2017, including interim periods within those annual periods. Early adoption is permitted as of the beginning of an annual period for which financial statements (interim or annual) have not been issued or made available for issuance. That is, early adoption should be within the first interim period of fiscal 2017, or adoption would occur at the required implementation date. Retrospective application is required. We have determined that the impact of the reclassification required by this ASU is immaterial to our financial statements, and we will adopt this ASU at the required implementation date.

Summary of Significant Accounting Policies

Basis of Presentation

The accompanying unaudited Condensed Consolidated Financial Statements include the accounts of BlueLinx Holdings Inc. and its wholly owned subsidiaries (the “Company”). These financial statements have been prepared in accordance with the instructions to Form 10-Q and do not include all of the information and footnotes required by accounting principles generally accepted (“GAAP”) in the United States (“U.S.”) for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. These statements should be read in conjunction with the Consolidated Financial Statements and notes thereto included in the Company’s Annual Report on Form 10-K (the “Annual Report on Form 10-K”) for the year ended December 31, 2016, as filed with the Securities and Exchange Commission.

New Accounting Standards

Compensation - Retirement Benefits. In March 2017, the Financial Accounting Standards Board issued Accounting Standards Update (ASU) No. 2017-07, “Compensation - Retirement Benefits (Topic 715).” This standard will require that an employer report the service cost component in the same line item as other compensation costs arising from services rendered by the pertinent employees during the period, while the other components of net benefit cost are required to be presented in the income statement separately from the service cost component and outside a subtotal of income from operations. This ASU is effective for annual periods beginning after December 15, 2017, including interim periods within those annual periods. Early adoption is permitted as of the beginning of an annual period for which financial statements (interim or annual) have not been issued or made available for issuance. That is, early adoption should be within the first interim period of fiscal 2017, or adoption would occur at the required implementation date. Retrospective application is required. We have determined that the impact of the reclassification required by this ASU is immaterial to our financial statements, and we will adopt this ASU at the required implementation date.