Deck Calculator
Estimate decking boards, joists, posts, and materials needed.
Area
0 sq ft
Boards
0 pcs
Joists
0 pcs
Posts
0 pcs
Screws
0 pcs
Est. Cost
$0
Material Breakdown
FAQs
How many deck boards do I need?
Divide deck width by board width to get boards per row, multiply by deck length divided by board length (typically 12ft).
What joist spacing should I use?
16" on center is standard for most decking. Use 12" for heavier composite boards or 24" for stronger wood species.
How many posts do I need?
Posts should be spaced 6-8 feet apart in both directions for proper support.
How do I calculate screws needed?
Estimate 24 screws per board (2 screws per joist crossing, typically 12 joists).
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