Board Feet Calculator
Free online board feet calculator for woodworking and construction. Calculate board feet, understand nominal vs actua...
What Board Feet Calculator does
The Board Feet Calculator on Number Convert is a free online tool designed for woodworking and construction projects. Users input the dimensions of raw wood pieces—length in feet, width in inches, and thickness in inches—to determine the total board feet needed. The tool clarifies the distinction between nominal sizes (like a labeled 2x4) and actual dimensions after milling, helping users accurately estimate material requirements and avoid project delays or budget overruns.
How to use the Number Convert Board Feet Calculator
- 1
Select the thickness of the lumber in inches
- 2
Enter the width of the lumber in inches
- 3
Input the length of the lumber in feet
- 4
Specify the quantity of pieces needed
- 5
View the calculated board feet and total price if price per board foot is entered
Best for
Woodworkers and construction planners who need to accurately estimate lumber volume and cost for projects ranging from small shelves to large decks.
Limitations
- Results depend on accurate nominal vs. actual dimension input
- Price per board foot is optional and not always displayed
- Calculator assumes standard industry formula without custom unit conversions
Board Feet Calculator FAQ
- How do I calculate board feet for mixed sizes of lumber?
- Enter each piece's length, width, and thickness separately; the tool sums the board feet for all entered quantities, allowing you to total mixed sizes in one calculation.
- What is the difference between nominal and actual lumber dimensions?
- Nominal dimensions are the labeled size, such as 2x4, while actual dimensions are smaller after drying and planing; the calculator helps you understand this difference for accurate material planning.
- Can I use this calculator for hardwood and softwood?
- Yes, the tool uses the standard board foot formula applicable to both hardwood and softwood, requiring only length, width, and thickness inputs.
- Does the calculator include a price estimate for my lumber?
- If you enter a price per board foot, the tool will display a total cost estimate alongside the board feet calculation.