Calculator · Lumber & materials
Deck Board Calculator
The free Deck Board Calculator answers one question: Boards needed for a deck, with gaps. Enter your numbers in inches or millimeters and the result updates instantly in your browser, with no sign-up and no app to install. Use it on your phone at the bench, then copy or print the result for your cut list.
Boards run along the deck length; rows are counted across the width including the gap between boards.
Deck Board
- Rows of boards
- 26
- Total running length
- 416 ft
- Boards to buy (+10%)
- 29
- Deck area
- 192 sq ft
Pro tools · unlock
Which other lumber & materials calculators help with this project?
- Hardwood Flooring Calculator — Square footage and boxes of flooring to buy.
- Fence Picket Calculator — How many pickets for a fence run?
- Log Scale Calculator (Doyle, Scribner, International) — Board feet you can saw from a log.
- Plywood Sheet Calculator — How many sheets of plywood do your parts need?
- Plywood grades decoded — Related guide
What you'll need for this project
Tools
Screws & hardware
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Build it · Intermediate · 2 weekends
Download the complete plan with cut list and materials list (PDF)
8 × 10 ft Ground-Level Deck — A floating 8 × 10 ft deck on concrete blocks—no permits needed in most areas. Drawings, cut list with board-foot totals, hardware list and step-by-step instructions.
$14.99All plans & bundles →