Libreng Board Foot (BF) calculator para sa mga karpintero. Kalkulahin ang volume ng kahoy, tantyahin ang gastos ng proyekto, at isama ang porsyento ng tapon (waste) agad.
Turn this off if you want to price only the exact boards listed.
Switching units converts the current board list.
Save project estimates you may want to compare or reuse later.
Keeps the latest 10 calculations in this browser.
Ang Board Foot (BF) ay isang yunit ng volume. 1 BF = 144 cubic inches (12x12x1).
Sa sistemang Metric, kinakalkula lang natin ang Cubic Meters (m³).
Imperial (BF):
(Thk_in × W_in × L_ft) ÷ 12Metric (m³):
(Thk_mm × W_mm × L_mm) ÷ 1,000,000,000*Kinakalkula sa pamamagitan ng pag-convert ng mm sa metro.
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.
Kadalasan, ang mga bilihan ng kahoy ay nagkakalkula base sa 'nominal' na sukat bago patuyuin. Palaging sukatin ang aktwal na tabla.
Para sa malinis na kahoy, 10-15% ang karaniwan. Para sa magagaspang o may buhol, kalkulahin ang 20-30%.