
A Board Foot Calculator helps woodworkers, carpenters, and lumber buyers determine the volume of wood in board feet (BF). A board foot is a unit of measurement used in the lumber industry, defined as 1 foot long × 1 foot wide × 1 inch thick (12" × 12" × 1").
How to Calculate Board Feet?
The formula for calculating board feet is:
Board Feet (BF)=Thickness (in)×Width (in)×Length (ft)12\text{Board Feet (BF)} = \frac{\text{Thickness (in)} \times \text{Width (in)} \times \text{Length (ft)}}{12}
Or in inches:
Board Feet (BF)=Thickness (in)×Width (in)×Length (in)144\text{Board Feet (BF)} = \frac{\text{Thickness (in)} \times \text{Width (in)} \times \text{Length (in)}}{144}
Example Calculation
If you have a 2-inch thick, 6-inch wide, and 8-foot long piece of lumber:
BF=2×6×812=8 board feetBF = \frac{2 \times 6 \times 8}{12} = 8 \text{ board feet}
For multiple pieces, simply multiply by the quantity:
Total BF=Board Feet×Number of Pieces\text{Total BF} = \text{Board Feet} \times \text{Number of Pieces}
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