Board Foot Calculator

Kevin Brown

Board Foot Calculator

If you need to estimate the amount of lumber for your project, a board foot can be a useful measurement. A board foot represents volume, and is equal to a piece of lumber that is 1 foot long, 12 inches wide, and 1 inch thick. Use our board feet calculator below to get accurate lumber estimations.

Board Foot Calculator

To estimate board feet, enter the number of boards, length in feet, width in inches, and depth in inches. Make your own calculations with the board foot formula: Board feet = length x width x depth ÷ 12. For example, if you have a 2×4 that is 8 feet long, your calculation would be: 8 x 2 x 4 ÷ 12 = 5.333 board feet. If you have multiple boards and want to know the total board feet, add the number of boards to the equation. For example, if you have twelve 2×4 boards 8 feet long, calculate board feet like this: 12 x 8 x 2 x 4 ÷ 12 = 64 board feet.

Calculate board foot by entering the number of pieces, thickness, width, and length.

Why Use Board Feet?

Sawmills and contractors often use board feet as a measurement for hardwood lumber. It helps track costs and provides a consistent measurement for pricing.

The Difference Between a Board Foot of Lumber and a Regular Foot of Lumber

While a regular foot measures length, a board foot measures volume. For example, a piece of lumber that is eight feet in length will cover eight feet, but its volume will be measured in board feet.

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How to Convert Board Feet to Square Feet

Board feet measures volume, while square feet measures area. To convert from board feet to square feet, divide your board feet number by the thickness of the boards.

For example, if you have 100 board feet of two-inch thick boards, your formula will look like this:

100 board feet divided by 2 inch thickness equals 50 square feet

How to calculate 650 board feet to square feet?

To calculate board feet to square feet, you must know the thickness of your lumber. If your lumber is one inch thick, there are 650 square feet in 650 board feet. If your lumber is two inches thick, you’ll end up with 325 square feet, and if your lumber is three inches thick, you’ll have 216.67 square feet of lumber.

How do you convert board feet to cubic meters?

To convert board feet to cubic feet, divide by 12. For a 2 x 2 x 10 board, there are 3.333 board feet.

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