Work out boards, joists, and — for an elevated deck — support posts and footings for an outdoor patio deck, in hardwood, softwood or composite, with editable prices.
Looking for the suspended concrete floor slab instead (what Nigerian builders usually call "decking")? Use the Decking Calculator.
Joists are priced in hardwood regardless of decking material.
Ground-level deck laid directly on joists over a prepared base — no posts or footings.
per linear metre
per 4.8m length
per m²
per m² of deck
Enter deck length and width to see quantities and cost.
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Ready to take the next step?
A deck's finish and lifespan come from the boards, but its safety comes from what's underneath. Joist spacing needs to suit the board thickness and the load the deck will carry, and any deck raised off the ground needs enough posts, correctly spaced, on footings that won't shift or settle.
This calculator prices boards and joists from your dimensions and spacing, and adds posts and footings only when you tell it the deck is elevated — so a simple ground-level deck isn't overpriced with structure it doesn't need.