Manchester, NH · 2026 cost guide
How much does a deck cost in Manchester?
In Manchester, a deck costs about $5,300–$21,000 in 2026 for a 320 sq ft deck, from pressure-treated to composite — roughly $16.53–$66.13 per square foot. That’s about 3% above the New Hampshire average.
Estimate your Manchester project with the Deck Cost Calculator →
Manchester cost breakdown
| Manchester typical range | $5,300–$21,000 |
| Manchester per square foot | $16.53–$66.13 |
| New Hampshire state average | $5,100–$20,500 |
| Versus New Hampshire average | about 3% above average |
What’s different about Manchester
Manchester is New Hampshire's largest market, where proximity to Boston nudges labor rates upward and snowy winters drive durable roofing and drainage.
- Footings have to reach below the frost line, so deeper excavation adds cost.
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.
Frequently asked questions
How much does a deck cost in Manchester?
In Manchester, a deck costs about $5,300 to $21,000 in 2026 for a 320 sq ft deck, from pressure-treated to composite — roughly 16.53–66.13 per square foot. That's about 3% above the New Hampshire average, reflecting local labor and permit costs.
What affects the cost of a deck in Manchester?
Manchester is New Hampshire's largest market, where proximity to Boston nudges labor rates upward and snowy winters drive durable roofing and drainage. Footings have to reach below the frost line, so deeper excavation adds cost.
How can I get an accurate deck building estimate in Manchester?
Use the free Deck Cost Calculator to plug in your real measurements, then collect two or three local Manchester quotes to compare. Prices vary by neighborhood, access, and project complexity.
Deck building cost in other New Hampshire metros
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 →The Manchester figure scales the New Hampshire cost range by a local metro index, then adjusts for the city’s labor market and climate. A 2026 planning estimate, not a quote — get local bids. See our methodology.