Wood Deck costs $27.07 to $54.14 per sq ft in Portland in 2026. For a 400 sq ft project, expect $10,828 – $21,657 installed, typically near $16,243. That is about 10% above the Maine state average.
Portland wood deck cost calculator
Planning estimate only. State pricing applies a construction wage index to the labor share; materials are held at national prices. Get three written quotes before committing.
Why Portland costs more than the rest of Maine
Portland carries roughly a 10% premium over the Maine statewide figure. Three things drive that gap. Metro wages run above the state average, and labor is about 52% of this bill. Permitting and inspection are slower and more expensive inside city limits. And site access is tighter, which means smaller equipment, more hand work, and sometimes street permits for deliveries.
Statewide, Maine averages $24.61 to $49.22 per sq ft, against $27.07 to $54.14 inside Portland. Suburbs on the metro fringe usually fall between the two.
Wood Deck cost by project size in Portland
| Project size | Portland range | Typical |
|---|---|---|
| 10×10 (100 sq ft) | $2,707 – $5,414 | $4,061 |
| 12×12 (144 sq ft) | $3,898 – $7,796 | $5,847 |
| 12×16 (192 sq ft) | $5,198 – $10,395 | $7,796 |
| 12×20 (240 sq ft) | $6,497 – $12,994 | $9,746 |
| 16×20 (320 sq ft) | $8,663 – $17,325 | $12,994 |
| 20×20 (400 sq ft) | $10,828 – $21,657 | $16,243 |
Portland compared with other Maine markets
| Area | Cost per sq ft | vs Portland |
|---|---|---|
| Bangor | $24.86 – $49.71 | -8% |
| Lewiston | $25.10 – $50.20 | -7% |
| Maine average | $24.61 – $49.22 | −10% |
Ground conditions and code in Portland
Permits in Portland
A residential permit for this work typically runs around $400 in Maine, and metro jurisdictions like Portland usually sit at the upper end of that range with longer review times. Permit cost is rarely included in a contractor quote, so add it separately. Confirm scope with the Portland building department before work begins.
Hiring in Portland
Get three written, itemised quotes from licensed and insured contractors, and make sure each specifies the same dimensions and the same grade of material. In a metro market, the cheapest bid often reflects a thinner specification or a crew travelling in from outside the area rather than a genuine saving. Ask for local references and check that the licence is current in Maine.
Frequently asked questions
How much does wood deck cost in Portland?
In 2026, wood deck costs $27.07 to $54.14 per sq ft in Portland. For a 400 sq ft project, the installed total typically lands between $10,828 and $21,657.
Is Portland more expensive than the rest of Maine?
Yes. Portland runs about 10% above the Maine statewide average, driven by metro wage levels, permitting, and tighter site access.
Do I need a permit in Portland?
Most work of this type and value requires a permit. Budget around $400 and allow extra time for review, since metro jurisdictions are typically slower than rural ones.
How do I compare quotes in Portland?
Insist on three written, itemised quotes covering identical dimensions, materials, and scope of preparation. A bid far below the others usually signals a reduced specification rather than better value.
Nearby markets
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