Board Foot & Lumber Calculator
Calculate board feet for custom lumber dimensions or build a full lumber list with quantities, sizes, and costs. Essential for framing, decking, and woodworking projects.
Nominal or actual (e.g. 1, 1.5, 2)
Nominal or actual (e.g. 4, 5.5, 6)
Results
Per Piece
8.00
Board Feet
Total (1 piece)
8.00
Board Feet
Common Nominal vs Actual Sizes
| Nominal | Actual | BF per 8' board |
|---|---|---|
| 2x4 | 1.5" x 3.5" | 5.33 |
| 2x6 | 1.5" x 5.5" | 8.00 |
| 2x8 | 1.5" x 7.25" | 10.67 |
| 2x10 | 1.5" x 9.25" | 13.33 |
| 2x12 | 1.5" x 11.25" | 16.00 |
| 4x4 | 3.5" x 3.5" | 10.67 |
| 6x6 | 5.5" x 5.5" | 24.00 |
How to Use This Calculator
Choose Board Foot Calculator to find board feet for custom thickness, width, and length. Choose Lumber List Calculator to plan a full material list with standard nominal sizes, quantities, and optional pricing. Board feet are calculated using nominal dimensions: BF = (Thickness x Width x Length) / 12.
Formula Used
Board Feet (BF) = (Thickness in inches x Width in inches x Length in feet) / 12. For example, a 2x6x8 board = (2 x 6 x 8) / 12 = 8 board feet.
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Disclaimer
This calculator is for estimation purposes only. Results may vary based on local conditions, materials, and building codes. Always consult a licensed professional before making decisions based on these calculations. MyContractorTools is not responsible for any errors or omissions.