Board Foot Calculator
Single Board
Multiple Boards
Total Cost
Board Dimensions
Quantity
Results
Board Feet per Board:
0.00
Total Board Feet:
0.00
Board Foot Formula
Board Feet = (Length (ft) × Width (in) × Thickness (in)) / 12
BF = (L × W × T) / 12
Board Dimensions
Quantity
Results
Board Feet per Board:
0.00
Total Board Feet:
0.00
Board Feet
Pricing
Results
Total Board Feet:
0.00
Price per Board Foot:
0.00
Total Cost:
0.00
What is a Board Foot?
A board foot is a unit of measurement for the volume of lumber in the United States and Canada. It represents the volume of a one-foot length of a board one foot wide and one inch thick.
How to Calculate Board Feet
The formula to calculate board feet is:
Board Feet = (Length (ft) × Width (in) × Thickness (in)) / 12
Where:
- Length is measured in feet
- Width is measured in inches
- Thickness is measured in inches
Common Board Sizes and Their Board Feet per Foot
| Nominal Size | Actual Size (in inches) | Board Feet per Foot |
|---|---|---|
| 1×4 | 0.75" × 3.5" | 0.25 |
| 1×6 | 0.75" × 5.5" | 0.375 |
| 1×8 | 0.75" × 7.25" | 0.5 |
| 1×10 | 0.75" × 9.25" | 0.75 |
| 1×12 | 0.75" × 11.25" | 1.0 |
| 2×4 | 1.5" × 3.5" | 0.5 |
| 2×6 | 1.5" × 5.5" | 0.75 |
| 2×8 | 1.5" × 7.25" | 1.0 |
| 2×10 | 1.5" × 9.25" | 1.5 |
| 2×12 | 1.5" × 11.25" | 2.0 |
| 4×4 | 3.5" × 3.5" | 1.0 |
Why Use Board Feet?
Board feet provide a standardized way to measure and price lumber regardless of the specific dimensions of the boards. This is particularly useful when dealing with rough-cut lumber that may not have exact dimensions.