Compare calculators
Both calculators run independently β change the inputs on either side to compare results.
Construction
Deck Joist Spacing Calculator
Calculates the number of joists needed across a deck's width based on the on-center spacing. Use this when planning deck framing to ensure structural adequacy and code compliance.
Fill in the required fields to see your result.
Construction
Lumber Board Feet Calculator
Compute the board footage of a lumber piece from thickness, width, and length so you can price and order materials accurately. Useful for woodworking, framing, and hardwood purchasing.
Fill in the required fields to see your result.
Key differences
| Deck Joist Spacing Calculator | Lumber Board Feet Calculator | |
|---|---|---|
| Category | Construction | Construction |
| Inputs required | 2 | 3 |
| Result | Number of Joists Needed (joists) | Board Feet (bf) |
| What it does | Calculates the number of joists needed across a deck's width based on the on-center spacing. Use this when planning deck framing to ensure structural adequacy and code compliance. | Compute the board footage of a lumber piece from thickness, width, and length so you can price and order materials accurately. Useful for woodworking, framing, and hardwood purchasing. |