DIY

Calculate Board Feet of Lumber

Built by Kevin Glover · @gloverbuilds · Verified formula

Convert lumber dimensions to board feet — the standard unit for buying hardwood. Essential for woodworking projects.

📅 Updated April 2026 ✅ Formula verified 📖 4 min read 🆓 Free · No sign-up

In this article

What Is a Board Foot?
Common Board Foot Examples
Rough vs Surfaced Lumber

La Mesure

1 pied-planche = 1" × 12" × 12" = 144 pouces³. Formule : épaisseur (po) × largeur (po) × longueur (pi) ÷ 12. Une planche de 2"×6"×8' : 2×6×8÷12 = 8 pieds-planches. Les bois durs (chêne, noyer, érable) se vendent au pied-planche. Les résineux (sapin, pin) se vendent à la pièce.

Prix au Pied-Planche

Pin : 2-5 $/BF. Chêne rouge : 4-8 $. Noyer : 8-15 $. Érable : 5-10 $. Cerisier : 6-12 $. Les prix varient considérablement selon la qualité (FAS, #1 Common) et la largeur. Les planches larges coûtent une prime de 20-40%.

⚡ CalcWolf Insight

Hardwood prices per board foot in 2026: Red Oak $5-8, White Oak $6-10, Hard Maple $6-9, Cherry $7-11, Walnut $10-16, Sapele $8-12. Prices vary significantly by region and supplier — call 3 lumber yards for quotes before committing.

Frequently asked questions

Qu'est-ce qu'un pied-planche ?▾

Un volume de 1 pouce d'épaisseur × 12 pouces de large × 12 pouces de long. C'est l'unité standard pour l'achat de bois dur.

Comment calculer les pieds-planches ?▾

Épaisseur (po) × largeur (po) × longueur (pi) ÷ 12. Une planche de 1"×8"×10' = 6,67 BF.

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Kevin Glover · @gloverbuilds

Founder, CalcWolf · GLVTS · Blickr

All formulas sourced from primary references — IRS publications, peer-reviewed research, and official standards. Results are tested against independent reference calculators before publishing. Rates and brackets updated when official sources change. Editorial policy →