Q:

What is the formula for calculating the board feet needed for a wood project?

A:

Quick Answer

To calculate the board feet needed for a wood project, multiply width by length by thickness and divide by 144. All of the measurements should be in inches. For example, 8 inches by 72 inches by 1.5 inches divided by 144 equals 6 board feet.

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Full Answer

If the length is in feet, use the following formula: width in inches times length in feet times thickness in inches divided by 12.

Because hardwoods come in different sizes, lumber yards use the board foot as a standard unit of measurement and pricing. In contrast, softwoods are cut to consistent sizes, known as dimensional lumber.

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