Exhibit 99.1 BlueLinx Announces Third Quarter 2024 Results ATLANTA, October 29, 2024 – BlueLinx Holdings Inc. (NYSE: BXC), a leading U.S. wholesale distributor of building products, today reported financial results for the three months ended September 28, 2024. THIRD QUARTER 2024 HIGHLIGHTS • Net sales of $747 million • Gross profit of $126 million, gross margin of 16.8% and specialty product gross margin of 19.4%, which includes a net benefit of approximately $3.5 million related to import duties from prio ...