Convert Cubic feet to Board feet
Convert Cubic feet (ft³) to Board feet (bf) instantly and accurately.
Conversion Formula
bf = ft³ × 12
About Cubic feet
The cubic foot (ft³) = 0.028316846592 m³ (exact) - the primary US lumber volume unit for large structural timber; also underlies the cord (128 ft³) and board foot (1 bf = 1/12 ft³ nominal). US Forest Service sale contracts specify cruise volumes in Mbf or ft³. Export docs for EU/Asia convert to m³: 1 m³ = 35.315 ft³. 1 ft³ = 0.02832 m³ = 1,728 in³ ≈ 12 bf.
About Board feet
The board foot (bf) is the standard lumber-trade unit in the USA, Canada, and the Philippines: 1 ft × 1 ft × 1 in = 144 in³ = 0.002359737216 m³ (exact). Always calculated from nominal dimensions - a 1×6×8 ft board = 4 bf nominal, actual dressed volume is less. Hardwood lumber priced from ~$2/bf (common poplar) to $100+/bf (premium walnut). Log rules: Doyle (SE USA), Scribner (Pacific NW), International ΒΌ-inch (most accurate). 1 bf = 144 in³ = 0.00236 m³ ≈ 1/12 ft³.
Quick Reference Table
| Cubic feet (ft³) | Board feet (bf) |
|---|---|
| 1 ft³ | 12 bf |
| 2 ft³ | 24 bf |
| 5 ft³ | 60 bf |
| 10 ft³ | 120 bf |
| 25 ft³ | 300 bf |
| 50 ft³ | 600 bf |
| 100 ft³ | 1200 bf |