🪚 Board Foot Calculator Calculator for Woodworking
Convert board dimensions and quantity into board feet and cubic volume.
This free tool helps you turn project measurements into a practical planning estimate. Enter values in Vaelden’s interactive calculator, review the result, and confirm important assumptions against supplier data, measurements, codes or qualified advice before committing materials or money.
Open the Board Foot Calculator calculator →
How to calculate board foot calculator
Method: Board feet = thickness(in) × width(in) × length(ft) × quantity ÷ 12
- Use the dimensions on which the supplier prices the board.
- Keep nominal and dressed dimensions distinct.
- Multiply by quantity, then add grade and defect allowance separately.
Worked example
Using these planning inputs:
- Board thickness: 25
- Board width: 150
- Board length: 2.4
- Quantity: 6
Total board feet: 22.88 bd ft
Reality check: Board-foot volume does not describe grade, moisture, usable width, defects or recovery after dressing.
Before you calculate
Use consistent units and the best measured inputs available. Real materials, equipment, site conditions and tolerances can change the result. Vaelden shows planning estimates; regulated, structural, electrical, plumbing, pressure and other safety-critical work still requires appropriate local compliance and professional advice.