Deck Building Cost Calculator
Get a realistic 2026 price range for your deck building in seconds. Pick a size and quality level — no email required.
Size / scope
Quality level
Deck cost is mostly about size, decking material, and height off the ground. A ground-level pressure-treated deck is the budget option; an elevated composite deck with railings, stairs, and built-ins costs several times more. This calculator estimates a new deck built by a contractor, including footings and framing.
What drives deck building cost
- Decking material — pressure-treated pine is cheapest; cedar, composite, and hardwood cost more
- Size and height — elevated decks need taller posts, more framing, and stairs, all of which add cost
- Railings, stairs, and built-ins like benches or planters add material and labor
- Footings and permits — proper concrete footings and a required permit factor into the total
Deck Building cost — frequently asked questions
Is composite decking worth it over wood?
Composite costs roughly 30-100% more than pressure-treated wood up front but needs almost no maintenance — no staining or sealing — and lasts 25+ years. If you don't want annual upkeep, model it with the Mid-range or High-end quality setting.
How much does a small deck cost?
A basic ground-level pressure-treated deck of modest size sits near the low end of this range. Set size to Small and quality to Budget for a simple platform deck without stairs or fancy railings.
Do I need a permit to build a deck?
Most jurisdictions require a permit for any attached deck or one above a certain height, and inspections check footings and railings for safety. Permit costs are included in the 'Permits, design & cleanup' portion of your estimate.