DIY Calculator
Lumber Calculator
Calculate board feet for lumber planning and material estimates.
Calculator guide
How this calculator works
How to use this calculator
Enter the project measurements and material details requested in the calculator. Then click Calculate to estimate the result. For best accuracy, measure carefully and update any default material values based on your supplier or project plan.
Formula used
Board Feet = Thickness × Width × Length × Quantity ÷ 12.
Example calculation
For five boards measuring 2 in thick, 6 in wide, and 10 ft long, the total is 50.00 board feet.
What the result means
Board feet estimate lumber volume and are commonly used for pricing rough lumber or specialty wood.
Frequently asked questions
Is this the same as linear feet?
No. Linear feet measure length only, while board feet measure lumber volume.