Lumber Math: Board Feet, Nominal vs Actual, and Hardwood Pricing
A board foot is a volume measure equal to 144 cubic inches — or a 12" × 12" × 1" board. Hardwood is always priced per board foot; softwood is often priced per linear foot or per piece, but board-foot pricing lets you compare across dimensions fairly.
1. The Board Foot Formula
A board foot is a volume measure equal to 144 cubic inches — or a 12" × 12" × 1" board. Hardwood is always priced per board foot; softwood is often priced per linear foot or per piece, but board-foot pricing lets you compare across dimensions fairly.
2. Nominal vs Actual Dimensions
3. Hardwood Pricing Guide (USD per BF, 2024)
4. Project Estimation Tips
- Add waste: 10% rough framing, 15% trim, 20-25% complex projects
- Buy extra: Running short mid-project costs more than over-buying
- Check grade stamps: Structural lumber is graded #1, #2, #3, stud
- Inspect on arrival: Cup, crown, twist, bow — reject warped boards immediately
- Acclimate: Let hardwood sit in your shop for 1-2 weeks before milling
Buy the Right Boards Every Time
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