Builders FirstSource — Oct 30, 2025 release

• Net Sales to be in a range of $15.1 billion to $15.4 billion. • Gross Profit margin to be in a range of 30.1% to 30.5%. • Adjusted EBITDA to be in a range of $1.625 billion to $1.675 billion. • Adjusted EBITDA margin to be in a range of 10.6% to 11.1%. • Free cash flow in the range of $0.8 to $1.0 billion, assuming average commodity prices in the range of $370 to $390 per thousand board foot (mbf). 3       2025 Full Year Assumptions The Company’s anticipated 2025 performance is based on several assumptions for the full year, including the following: • Within the Company’s geographies, Single Family starts are projected to be down approximately 9%, Multi-Family starts down mid-teens, and R&R is projected to be flat. • Acquisitions completed within the last twelve months are projected to add net sales growth of approximately 5%. • Total capital expenditures in the range of $300 million to $350 million. • Interest expense in the range of $270 million to $280 million. • An effective tax rate of 20.0% to 22.0%. • Depreciation and amortization expenses in the range of $550 million to $600 million. • One fewer selling day is projected to decrease net sales by 0.4% in 2025 versus 2024.   Conference Call Builders FirstSource will host a conference call and webcast on Thursday, October 30, 2025, to discuss the Company’s financial results and other business matters. The teleconference will begin at 8:00 a.m. Central Time and will