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Document and Entity Information
 3 Months Ended
Mar. 30, 2013
May 13, 2013
Document and Entity Information [Abstract]    
Entity Registrant Name BlueLinx Holdings Inc.  
Entity Central Index Key 0001301787  
Trading Symbol bxc  
Entity Current Reporting Status Yes  
Entity Voluntary Filers No  
Current Fiscal Year End Date --12-28  
Entity Filer Category Non-accelerated Filer  
Entity Common Stock, Shares Outstanding   86,665,772
Document Type 10-Q  
Document Period End Date Mar. 30, 2013  
Amendment Flag false  
Document Fiscal Year Focus 2013  
Document Fiscal Period Focus Q1