Lumber Calculator
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Formula
Board Feet = (Thickness" × Width" × Length') ÷ 12. Total = Board Feet × Quantity.
Frequently Asked Questions
What is a board foot?
A board foot is a unit of lumber volume equal to 1 inch thick × 12 inches wide × 12 inches long (144 cubic inches).
How do I calculate board feet?
Board Feet = (Thickness in inches × Width in inches × Length in feet) ÷ 12.