Free deck calculator
Deck Cost Calculator
See what a new deck really costs in your area — wood, composite or PVC — in about 60 seconds.
- About 60 seconds
- Priced for your ZIP
- No site visit needed
What size deck are you thinking?
A rough guess is fine.
How much does a deck cost?
Most deck projects in the US fall between $8,000 – $45,000. Where yours lands depends on a handful of things — that's exactly what the calculator above asks about, then it adjusts for labor and material costs in your ZIP code.
What drives the price
- Material is the biggest swing — composite runs roughly 1.5–2× the cost of pressure-treated.
- Height adds posts, bracing and stairs. A second-story deck can cost 40%+ more per square foot.
- Railing is priced by the foot. Cable and glass look great but cost 2–3× wood.
- Soil, slope and footing depth (frost line) change the foundation cost.
- Local permit rules and inspection fees vary by city.
Frequently asked questions
How much does a 12×16 deck cost?
A 12×16 (192 sq ft) deck typically runs about $7,500–$12,000 in pressure-treated wood and $14,000–$22,000 in composite once railing, stairs and permits are included. Your area's labor rates move that up or down.
Is composite worth the extra money?
Composite costs more upfront but skips the yearly staining and sealing wood needs. Over 15–20 years the total cost is often close, and composite looks newer for longer.
Do I need a permit to build a deck?
Most cities require a permit for decks attached to the house or more than 30 inches off the ground. Your contractor usually pulls it — it's built into this estimate.