Deck Material Calculator
Estimate the decking boards and joists for your deck. Enter the deck dimensions, board width and joist spacing.
Build a priced estimate
Material prices are your cost — add a markup. Your labor rate is what you bill the client. Saved on this device.
Optional — puts your company on branded PDF quotes and unlocks your saved dashboard. Everything stays on your device.
How to estimate deck material
Decking is estimated from the deck area and the effective board coverage — the board width plus the gap between boards. Divide the deck area by that coverage to get the linear feet of decking, and space joists 12-16 inches on center.
Set your decking, joist and hardware prices plus your build rate in Settings; CraftTools totals the framing and surface into a priced, client-ready quote.
Frequently asked questions
How many deck boards do I need?
Divide the deck area by the effective board coverage (board width plus gap), which gives the linear feet of decking. This calculator does it automatically.