Calculez le volume de bois en Board Feet (BF) et estimez le coût de vos projets de menuiserie. Outil gratuit avec gestion des pertes.
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Un Board Foot (BF) est une unité de volume. 1 BF = 144 pouces cubes (12x12x1).
Dans le système métrique, nous calculons simplement en Mètres Cubes (m³).
Impérial (BF) :
(Thk_in × W_in × L_ft) ÷ 12Métrique (m³) :
(Thk_mm × W_mm × L_mm) ÷ 1,000,000,000*Calculé en convertissant les mm en mètres.
One shelf board: A 1 in x 12 in x 6 ft board is 6 BF. At $5 per BF with 10% waste, the estimate is $33.
Metric hardwood order: A 25 mm x 150 mm x 2400 mm board is about 0.009 m³, or 3.8 BF before waste.
Mixing length units: In imperial mode, length is in feet while thickness and width are in inches. If all three values are inches, the result will be 12 times too high.
Using nominal size by accident: Board-foot pricing often follows nominal lumber size. For a shop estimate, measure the actual board when that is what you will cut.
Forgetting waste: Add extra material for trimming, defects, grain choice, and mistakes. Raise the waste allowance for rough or figured boards.
Keep rough and surfaced boards separate: They may be priced or measured differently. Add them as separate rows so the list is easier to check.
Save before comparing options: Save one calculation, change the species or waste allowance, then save the new version for a quick side-by-side check.
Les scieries calculent souvent sur des dimensions 'nominales' avant séchage. Mesurez toujours la planche réelle.
Pour du bois net, 10-15% est standard. Pour du bois brut ou figuré, comptez 20-30%.