Calculate board feet for any lumber dimensions. Add multiple lumber types to get your full order total — with optional cost estimate.
Board Feet = (Thickness × Width × Length in inches) ÷ 144
| Thickness (in) | Width (in) | Length (ft) | Qty | $/BF | Board Feet |
|---|
A board foot is a unit of lumber measurement equal to 1 inch thick × 12 inches wide × 12 inches long (144 cubic inches). The formula is:
Board Feet = (Thickness × Width × Length) ÷ 144
where thickness and width are in inches, length is in inches (multiply feet × 12)
Board feet use nominal dimensions (the stated size), not actual dimensions. A 2×4 is actually 1.5" × 3.5" — but for board foot calculations, you use 2 and 4. This is the industry standard.
Take your board foot totals into BuildQuotes to create a professional estimate.