What is a board foot?

A board foot is a unit of measure equal to the board’s thickness times its width times its length, divided by 12. For example, a board 1″ thick, 4″ wide and 3′ long is 1 board foot (bf).

1 x 4 x 3

12 = 1 bf

How do I calculate board feet?

For domestic lumber, you can calculate board feet in inches or in feet. Use one of these two formulas to calculate board feet. Rounding up the total to the nearest quarter of a foot is standard industry practice (e.g., 3.8 bf becomes 4 bf).

Formula Example

1. T” x W” x L” 1″ x 6″ x 96″

144 = X board feet 144 = 4 bf

2. T” x W” x L’ 1″ x 6″ x 8′

12 = X board feet 12 = 4 bf

(T = thickness, W = width, L = length, bf = board feet)

For exotic lumber, standard measurement is by the inch (length only?) and calculated to two decimal places.



All KenCraft lumber is kiln dried to 6-8% moisture content to meet the needs of fine furniture builders and personally examined to meet our quality standards.


Domestic & Exotic Hardwood Lumber

60+ species in stock.

We personally examine every lumber shipment to make sure it meets our quality standards. If we wouldn’t use it, we won’t sell it.

Choose from over 60 different lumber types in stock, including:

• Domestic hardwoods

• Exotic hardwoods – Bloodwood, purpleheart, and many more, favorites for specialty handles, bows, pool cues and many unique gifts

• Three types of plywood including Baltic Birch, Red Oak and Prefinished Maple

• 20+ veneers in full- and half-sheets

• Stock and custom laminated panels

• Turning squares and furniture squares

• Ash bat blanks and other lathe lumber

• And much more.

We offer stock lumber in 4/4 (four-quarter), 5/4, 6/4, 8/4 and some 12/4 and 16/4 standard thicknesses. Check our online store for thin stock (1/16″ thick and up).

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Hard-to-find wood species?

Bring ‘em on. We have great longstanding relationships with very loyal suppliers, so we can often track down lumber species others can’t.

Stop in, call 419-536-0333 or email us today.