Board Feet Calculator
Convert lumber dimensions into board feet for purchasing and pricing.
Step 1: Units
Step 2
Enter project measurements
Use decimals if needed (e.g. 3.5).
How to use this calculator
Enter thickness, width, and length for each board type.
What the math is doing
Total BF = BF per piece × count.
Frequently asked questions
Random length bundles?
Average length for estimates.
Resaw?
Each resawn piece gets its own BF.
Surfaced four sides?
Use finished dimensions.
Timber beams?
Same formula on net sizes.