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Lumber Calculator

Construction
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Calculates the board feet, total cost, and number of boards needed for a lumber project.

How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

Enter Board Length (inches), Board Width (inches), Board Thickness (inches), Number of Boards, and Price per Board Foot ($) in the units shown.

Step 2

Read Board Foot Volume per Board (board feet), Total Board Foot Volume (board feet), and Total Cost ($) in the results panel. Results update as you change the inputs.

Step 3

Choose a preset to load an example, then adjust the values for your situation.

Worked Examples

Example calculations

See the inputs and their calculated results.

Decking - Small

Board Length (inches): 96; Board Width (inches): 6; Board Thickness (inches): 1; Number of Boards: 20; Price per Board Foot ($): 2.75

Board Foot Volume per Board (board feet): 4; Total Board Foot Volume (board feet): 80; Total Cost ($): 220

Decking - Large

Board Length (inches): 144; Board Width (inches): 6; Board Thickness (inches): 1; Number of Boards: 50; Price per Board Foot ($): 2.75

Board Foot Volume per Board (board feet): 6; Total Board Foot Volume (board feet): 300; Total Cost ($): 825

Framing - Studs

Board Length (inches): 96; Board Width (inches): 3.5; Board Thickness (inches): 1.5; Number of Boards: 30; Price per Board Foot ($): 3

Board Foot Volume per Board (board feet): 3.5; Total Board Foot Volume (board feet): 105; Total Cost ($): 315

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