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Calculating Board Feet A board foot is a unit of measure, equal to 1 inch thick board, 12 inches wide and 12 inches long. Generally, stock less than one inch in thickness but more than a 1/2 inch is calculated as 1 inch thick. For example a board that is 3/4 of an inch thick is calculated as a 1 inch thick board. There are difeerent formulas that can be used to calulate board feet. One formula uses all inches the other uses inches and feet. Example #1 Board feet = T ( thichkness) x W (width) x L(length) all inches
A board foot equals the products Number pf square inches in one square foot. Example #2 If your are using inches and feet in the same formula : Board Feet = Thickness (inches) x Width ( inches ) x Length ( Feet) 12 inches
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