How To Calculate Board Feet. By definition, a board foot is one square foot, one inch thick. To calculate board footage use the following formulas How to calculate board feet?
Check out our board foot calculator (lumber quantity calculator) above.
A board foot is equal to 1 inch thick x 12 inches wide x 12 inches long. Quick approximation for calculating board feet. Check out our board foot calculator (lumber quantity calculator) above. 5/4 stock is thicker than 1 inch stock. To calculate the number of board feet, use the following formula: Actually it's easy to calculate using the following formula: A board foot is equal to 144 cubic inches of wood. It also calculates the total price of the required board feet.