Power of Attorney for Christina M. Corley

Christina M. Corley, a director of BlueLinx Holdings Inc., has appointed Christin Lumpkin and Lerinda Elliott as her attorneys-in-fact. This Power of Attorney authorizes them to execute and file Forms 3, 4, and 5 on her behalf in accordance with Section 16(a) of the Securities Exchange Act of 1934. The attorneys-in-fact are also empowered to perform any necessary actions related to these filings, including the submission of forms and exhibits to the SEC and any relevant stock exchanges. The Power of Attorney remains in effect until Corley is no longer required to file these forms, unless revoked earlier in writing. The document was executed on September 25, 2025.