Board Feet Formula:
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Board feet is a measurement of lumber volume. One board foot equals 1 foot long × 1 foot wide × 1 inch thick (or equivalent). It's the standard unit for buying and selling hardwood lumber in North America.
The calculator uses the board feet formula:
Where:
Explanation: The formula converts the three-dimensional volume of wood into the standard board feet measurement used in the lumber industry.
Details: Accurate board feet calculation is essential for pricing lumber, estimating project costs, determining how much wood to purchase, and comparing prices between different lumber sizes and species.
Tips: Enter the length in feet, width in inches, and thickness in inches. All values must be positive numbers. The calculator will compute the total board feet.
Q1: Why divide by 12 in the formula?
A: We divide by 12 to convert the cubic inches measurement to board feet, since 1 board foot equals 144 cubic inches (12" × 12" × 1").
Q2: How is board feet different from linear feet?
A: Linear feet measures only length, while board feet measures volume (length × width × thickness). Board feet accounts for all three dimensions of the wood.
Q3: Can I use this calculator for any wood type?
A: Yes, the formula works for all wood species. However, pricing will vary significantly between different types of wood.
Q4: How accurate is board feet measurement for pricing?
A: Board feet is the industry standard, but actual pricing may also depend on wood grade, moisture content, and market conditions.
Q5: What if my board has irregular dimensions?
A: For irregular boards, measure at the widest and thickest points, or break the board into rectangular sections and calculate each separately.