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Document and Entity Information	6 Months Ended
	Jun. 29, 2013	Jul. 31, 2013
Document and Entity Information [Abstract]
Entity Registrant Name	BlueLinx Holdings Inc.
Entity Central Index Key	0001301787
Trading Symbol	bxc
Current Fiscal Year End Date	--01-04
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		86,570,714
Document Type	10-Q
Document Period End Date	Jun. 29, 2013
Amendment Flag	false
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	Q2

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End date of current fiscal year in the format --MM-DD.

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This is focus fiscal period of the document report. For a first quarter 2006 quarterly report, which may also provide financial information from prior periods, the first fiscal quarter should be given as the fiscal period focus. Values: FY, Q1, Q2, Q3, Q4, H1, H2, M9, T1, T2, T3, M8, CY.

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This is focus fiscal year of the document report in CCYY format. For a 2006 annual report, which may also provide financial information from prior periods, fiscal 2006 should be given as the fiscal year focus. Example: 2006.

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The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented. If there is no historical data in the report, use the filing date. The format of the date is CCYY-MM-DD.

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The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word "Other".

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