Deck Building Cost in Boston (2026)
Deck Building in Boston runs about 24% above the national average. A typical 320 sq ft project starts around $5,950–$9,920 for pressure-treated wood. Estimate your exact Boston project below.
Deck Building Cost Calculator
Adjust the details for an installed-cost range tailored to you.
Length × width of the deck surface. A 16×20 deck is 320 sq ft.
Ballpark estimate for planning — not a quote.
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Deck Building cost in Boston by material
Installed cost for a typical 320 sq ft project in Boston.
| Material | Per sq ft | Typical Boston project |
|---|---|---|
| Pressure-treated wood | $18.6–$31.0 | $5,950 – $9,920 |
| Cedar / redwood | $31.0–$49.6 | $9,920 – $15,870 |
| Composite (Trex-style) | $37.2–$74.4 | $11,900 – $23,810 |
What affects your Boston cost
- Decking material and railing style
- Height off the ground and stairs
- Footings, framing and permits
- Built-ins (benches, pergola, lighting)
- Local labor rates
Boston deck building — FAQ
How much does deck building cost in Boston?
In Boston, a typical 320 sq ft deck building project runs about $5,950–$9,920 for pressure-treated wood, installed. That's about 24% above the national average — metro labor and permit costs in Boston tend to run higher than the Massachusetts state average. Use the calculator above for your exact size and material.
How much does deck building cost per sq ft in Boston?
In Boston, installed deck runs about $18.6–$74.4 per sq ft depending on material (pressure-treated wood $18.6–$31.0, cedar / redwood $31.0–$49.6, composite (trex-style) $37.2–$74.4). That's about 24% above the national average.
How much does it cost to build a deck in 2026?
A typical 320 sq ft deck runs about $5,000–$8,000 in pressure-treated wood, or $10,000–$19,000 in composite, installed. Size, height, railings and material drive the price — use the calculator for a localized estimate.
Is composite decking worth it?
Composite costs roughly 1.5–2× wood up front but eliminates staining/sealing and lasts 25–30+ years, so total cost of ownership is often lower. It's the popular choice for homeowners who don't want annual maintenance.
Deck Building cost across Massachusetts
Boston runs about 24% above the national average. See the full Massachusetts breakdown and statewide averages.
← Deck Building cost in Massachusetts