Connecticut · 2026 cost guide
How much does a deck cost in Connecticut?
In Connecticut, a deck costs about $5,700–$22,500 in 2026 for a 320 sq ft deck, from pressure-treated to composite — roughly $17.7–$70.8 per square foot. That’s about 18% above the U.S. average.
Estimate your Connecticut project with the Deck Cost Calculator →
Connecticut cost breakdown
| Typical total (a 320 sq ft deck) | $5,700–$22,500 |
| Per square foot | $17.7–$70.8 |
| Metro areas (Hartford, Bridgeport, and New Haven) | up to ~$24,500 |
| Versus U.S. average | about 18% above average |
What’s different about Connecticut
Connecticut's freeze-thaw winters and high regional labor and permit costs raise exterior project pricing across most of the state.
- Footings have to reach below the frost line, so deeper excavation adds cost.
- Permit fees and skilled-trade labor rates here run well above the national average — usually the single biggest cost driver.
Expect quotes toward the higher end in Connecticut’s larger metros — Hartford, Bridgeport, and New Haven — where labor and permit costs run above the state average, and lower in rural areas.
How the cost is built
Deck cost depends on size, decking material (pressure-treated pine is cheapest; composite and PVC are mid-range; tropical hardwood is premium), and structural extras like railings, stairs, and elevated footings. Permits and ledger flashing add cost on attached decks.
Resale value
A wood deck recoups about 50–83% of its cost at resale — more than a composite deck — according to the annual Remodeling Cost vs. Value report.
Frequently asked questions
How much does a deck cost in Connecticut?
In Connecticut, a deck costs about $5,700 to $22,500 in 2026 for a 320 sq ft deck, from pressure-treated to composite — roughly 17.7–70.8 per square foot. That's about 18% above the national average, reflecting local labor and material costs.
What affects the cost of a deck in Connecticut?
Connecticut's freeze-thaw winters and high regional labor and permit costs raise exterior project pricing across most of the state. Footings have to reach below the frost line, so deeper excavation adds cost.
How can I get an accurate deck building estimate for my home?
Use the free Deck Cost Calculator to plug in your real measurements and materials, then collect two or three local quotes to compare. Within Connecticut, prices run higher in metros like Hartford, Bridgeport, and New Haven and lower in rural areas.
Deck building cost by city in Connecticut
Deck building cost in nearby states
Keep planning
Related calculators
Estimate wall area, siding squares, and boxes to order from footprint, stories, gables, and openings.
Open calculator →ConstructionFence CalculatorEstimate posts, rails, pickets, and concrete bags for a fence from its total length.
Open calculator →ConstructionConcrete CalculatorCalculate cubic yards of concrete and the number of bags for slabs, footings, and columns.
Open calculator →Sources & method
The Connecticut figure is the national installed-cost range scaled by a Connecticut regional cost index (its construction costs run about 18% above the U.S. average), then adjusted for the local climate and code factors above. It’s a 2026 planning estimate, not a quote — get local bids before budgeting.
- Smart Cost Hub methodology — how our cost ranges and indices are built
- U.S. Bureau of Labor Statistics — Producer Price Index (construction materials)
- Deck Quotes Near Me — local Connecticut contractor quote data