What a New Deck Costs in Massachusetts
In 2026, building a deck in Massachusetts typically costs $30–$70 per square foot installed, depending mostly on the decking material. For a common 300 sq ft deck:
- Pressure-treated wood: $12,000–$18,000
- Cedar: $16,000–$25,000
- Composite (Trex, TimberTech): $20,000–$35,000
- Premium hardwood (Ipe): $30,000+
Multi-level or elevated decks (like a second-story deck off the back of a home) start higher because of the added structure and footings.
What Drives the Price
- Decking material — the single biggest factor (see below).
- Size and height — elevated decks need taller posts, more footings, and stairs.
- Footings — Massachusetts frost line is 48 inches, so footings must be dug deep and poured properly.
- Railings — composite and aluminum railings cost more than basic pressure-treated.
- Features — built-in benches, lighting, pergolas, and multiple levels add cost.
- Permits — required in every MA town; we handle them.
Wood vs. Composite: The Real Trade-Off
Pressure-treated wood is the lowest upfront cost but needs staining or sealing every 1–2 years and lasts 15–20 years.
Composite costs more upfront but needs almost no maintenance, resists fading and rot, and lasts 25–30+ years. For most Massachusetts homeowners who want to enjoy the deck rather than maintain it, composite pays off over time. See our full comparison of decking materials for New England.
Built for New England Winters
Whatever the material, the structure underneath is what matters. We dig footings below the frost line, size beams and joists for snow loads, and build railings to code. A deck built right does not bounce, sag, or heave after the first winter. Explore our deck construction services — we build decks from Newton to Shrewsbury.
