Lewiston, ME · 2026 cost guide
How much does a deck cost in Lewiston?
In Lewiston, a deck costs about $4,900–$19,500 in 2026 for a 320 sq ft deck, from pressure-treated to composite — roughly $15.29–$61.15 per square foot. That’s in line with the Maine average.
Estimate your Lewiston project with the Deck Cost Calculator →
Lewiston cost breakdown
| Lewiston typical range | $4,900–$19,500 |
| Lewiston per square foot | $15.29–$61.15 |
| Maine state average | $5,000–$20,000 |
| Versus Maine average | in line with average |
What’s different about Lewiston
Lewiston has a lower cost of living and smaller contractor pool, with heavy snow and freeze-thaw cycles shaping roofing and drainage needs.
- Footings have to reach below the frost line, so deeper excavation adds cost.
- Salt air favors corrosion-resistant materials and fasteners.
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 Lewiston?
In Lewiston, a deck costs about $4,900 to $19,500 in 2026 for a 320 sq ft deck, from pressure-treated to composite — roughly 15.29–61.15 per square foot. That's in line with the Maine average, reflecting local labor and permit costs.
What affects the cost of a deck in Lewiston?
Lewiston has a lower cost of living and smaller contractor pool, with heavy snow and freeze-thaw cycles shaping roofing and drainage needs. Footings have to reach below the frost line, so deeper excavation adds cost.
How can I get an accurate deck building estimate in Lewiston?
Use the free Deck Cost Calculator to plug in your real measurements, then collect two or three local Lewiston quotes to compare. Prices vary by neighborhood, access, and project complexity.
Deck building cost in other Maine metros
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Open calculator →The Lewiston figure scales the Maine 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.