Deck Cost Calculators
Cost per square foot for a deck is a range, not a number, because the framing under a 12x16 barely changes while the decking on top can triple in price.
There are 2 calculators here: Deck Cost Calculator (deck material list and cost, framing to railing) and 12x16 Deck Cost Calculator (material list and cost for a 12 by 16 foot deck).
They all work the same way: quantity first, then a waste allowance you can change, then a price built from verified figures and adjusted for your state. Cost is always a range rather than a single number, and every assumption behind it is printed on the page with its source and the date it was last checked.
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Related guides
- Composite vs Pressure-Treated DeckingUp-front cost against twenty years of upkeep, plus the practical differences — heat, span, scratching and fasteners — that decide it on a real deck.
- What Does a Deck Cost Per Square Foot?Why the per-square-foot number ranges so widely, which half of the budget actually moves, and what changes when the deck gets taller rather than wider.