Filing Flows › Builders FirstSource (BLDR) › Q3 2026 › vs Q3 2025
Builders FirstSource (BLDR) Q3 2026 vs Q3 2025 (year over year)
Builders FirstSource's revenue fell $87.1M (-2%) from $3.9B in Q3 2025 to $3.9B in Q3 2026. The biggest changes: Windows Doors and Millwork −$73.3M (-7%); Lumber and Lumber Sheet Goods +$47.0M (+5%); Specialty Building Products and Services −$36.3M (-3%). Gross margin 27.8% against 30.4% (-2.6 pts).
Builders FirstSource, Q3 2026: revenue $3.9B (-2% year over year), operating margin 2.6%, net earnings $60.4M, operating cash flow $147M. The chart draws each line against Q3 2025, the increases inside each band.
Margins
| Q3 2026 | Q3 2025 | Change | |
|---|---|---|---|
| Gross margin | 27.8% | 30.4% | -2.6 pts |
| Operating margin | 2.6% | 5.8% | -3.2 pts |
| Net margin | 1.6% | 3.1% | -1.5 pts |
| Free cash flow margin | 1.9% | 11.7% | -9.8 pts |
Every line
| Line | Q3 2026 | Q3 2025 | Change | % |
|---|---|---|---|---|
| Lumber and Lumber Sheet Goods | $1.0B | $989M | $47.0M | +5% |
| Specialty Building Products and Services | $1.0B | $1.1B | −$36.3M | -3% |
| Windows Doors and Millwork | $938M | $1.0B | −$73.3M | -7% |
| Manufactured Products | $845M | $870M | −$24.5M | -3% |
| Revenue | $3.9B | $3.9B | −$87.1M | -2% |
| Gross profit | $1.1B | $1.2B | −$127M | -11% |
| Cost of revenue | $2.8B | $2.7B | $40.1M | +1% |
| Operating profit | $99.1M | $229M | −$130M | -57% |
| Operating expenses | $973M | $971M | $2.5M | +0.3% |
| Pre-tax earnings | $26.8M | $160M | −$133M | -83% |
| Other expense, net | $72.2M | $69.3M | $3.0M | +4% |
| Income tax benefit | $33.6M | −$37.1M | $70.7M | — |
| Net earnings | $60.4M | $122M | −$62.0M | -51% |
| Operating cash sources | $225M | $286M | −$61.5M | -21% |
| Depreciation & amortization | $149M | $148M | $1.3M | +0.9% |
| Share-based compensation | $15.6M | $16.4M | −$756K | -5% |
| Working capital & other | $78.3M | −$261M | $340M | — |
| Operating cash flow | $147M | $548M | −$401M | -73% |
| Free cash flow (OCF − capex) | $73.9M | $462M | −$388M | -84% |
| Capital expenditures | $72.6M | $85.8M | −$13.2M | -15% |
Questions
How much did Builders FirstSource's revenue grow year over year in Q3 2026?
Builders FirstSource's revenue fell $87.1M (-2%) from $3.9B in Q3 2025 to $3.9B in Q3 2026.
What drove Builders FirstSource's revenue change in Q3 2026?
Windows Doors and Millwork −$73.3M (-7%); Lumber and Lumber Sheet Goods +$47.0M (+5%); Specialty Building Products and Services −$36.3M (-3%).