Deck Building Cost Calculator
Decks are priced per square foot, and material and height make the biggest difference. Enter the deck size and material to estimate.
Most homeowners pay $7,750 to $15,000 for 300 sq ft, pressure-treated wood.
Your estimate
- Materials and labor
- Add-ons
- Permit
National installed prices, materials and labor included. Your local quotes may differ.
Deck building cost by option
Installed totals (based on 300 sq ft), with standard conditions and permit included.
| Option | Typical total |
|---|---|
| Pressure-treated wood | $7,750 to $15,000 |
| Cedar | $9,250 to $16,500 |
| Composite | $12,250 to $22,500 |
| PVC | $15,250 to $25,500 |
Installed price per unit
| Option | Installed price |
|---|---|
| Pressure-treated wood | $25.00 to $45.00 per sq ft |
| Cedar | $30.00 to $50.00 per sq ft |
| Composite | $40.00 to $70.00 per sq ft |
| PVC | $50.00 to $80.00 per sq ft |
What drives the price
- Decking materialPressure-treated wood is the budget option. Composite and PVC cost more but need less maintenance.
- HeightRaised decks need taller posts, more bracing and more railing.
- Railings and stairsRailing systems can cost as much as the decking itself.
- FootingsSoil and frost depth affect how deep footings must go.
How this estimate works
The calculator multiplies your deck size by the installed price range for the option you pick, adjusts it for the conditions you set, then adds any extras you tick and typical permit. The headline number is the midpoint of your range. Low-end prices fit simple jobs in lower-cost areas. High-end prices fit complex jobs, premium brands and high-cost metros.
Get at least three written quotes before you hire. Ask each contractor to list materials, labor, permits and disposal separately so you can compare them line by line. Read how we build our ranges.
Common questions
How long does it take to build a deck?
Many decks are built in one to three weeks after permits.
Does a deck need a permit?
Most attached and raised decks require permits. Check local rules.
Composite or wood?
Composite costs more up front and needs less upkeep. Wood costs less and can be refinished.
Sources and method
Price ranges are national installed estimates maintained by the HouseMath editorial team and last reviewed September 2026. For the labor side of the job, see the U.S. Bureau of Labor Statistics Occupational Employment and Wage Statistics data for carpenters (SOC 47-2031), which shows how trade wages differ by state.