Deck Calculator
Estimate materials for deck building projects
ft
ft
in
in
Helpful Tips
- Use pressure-treated lumber for structural components
- Space deck boards 1/8 to 1/4 inch apart for drainage
- Standard joist spacing is 16 inches on center
- Check local building codes for railing requirements
Formula Used
Boards = (Deck Area ÷ Board Area) + Waste; Joists = (Length ÷ Spacing) + 1About This Calculator
Calculate decking boards, joists, posts, and hardware needed for your deck project. Supports various board sizes and joist spacing configurations.