How to use the Board Feet Calculator

Calculate total lumber board feet and cubic feet for rectangular stock.

Calculation formula

Board feet = board count × thickness (in) × width (in) × length (ft) / 12.

Recommended steps

1. Enter values using the units shown beside each field.
2. Review whether the example assumptions match your situation.
3. Run the calculator and compare the key metrics.
4. Use the source data or official rates when precision matters.

Known limitations

Use nominal lumber dimensions where pricing is sold by board foot, not actual finished dimensions.