Calculateur de Bois

Les saisies utilisent les unités américaines (ft/in/lb et USD) ; les équivalents métriques sont affichés lorsqu’ils sont disponibles.

Calculez board feet, taille réelle et coûts.

Lumber Details

Board Feet per Piece
Total board feet
Taille réelle
Coût total

Comment calculer Board Feet

Formule : Board Feet (BF) = (thickness × width × length) ÷ 12. All dimensions in inches and feet as marked. Total BF = BF per piece × quantity.

Nominal vs Taille réelles

NominalActual (inches)
1×23/4 × 1-1/2
1×43/4 × 3-1/2
2×41-1/2 × 3-1/2
2×61-1/2 × 5-1/2
2×81-1/2 × 7-1/4
2×101-1/2 × 9-1/4
2×121-1/2 × 11-1/4
4×43-1/2 × 3-1/2

Note : Board feet are calculated using nominal dimensions, not actual dimensions. This is the standard industry practice pour pricing.

FAQ

What is a board foot?
1 BF = 1" thick × 12" wide × 12" long = 144 cu in. Formule : (T × W × L) ÷ 12.
Why is 2×4 not 2×4?
Nominal size is rough-cut green dimension. After drying and planing, 2×4 = 1.5×3.5 inches actual.
Board feet in 2×4×8?
(2 × 4 × 8) ÷ 12 = 5.33 BF per piece. 10 pieces = 53.3 BF.
Lumber cost per BF?
Pine $0.50-1.50/BF, cedar $1.50-3/BF, hardwoods $3-8/BF. Prices fluctuate with market.

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