Deck Guide
How Much Does a Deck Cost in Massachusetts?
By Dioclecio Gomes, Founder & Owner3 min readUpdated October 2, 2026
In This Guide
A 300 square foot deck in Massachusetts typically runs $11,000 to $17,000 in pressure-treated wood, $15,000 to $21,000 in cedar and $18,000 to $26,000 in composite, installed. That works out to $35 to $55 per square foot for pressure-treated and $60 to $85 for composite. Bob Vila puts the national average at $7,913 and $30 to $60 per square foot.
Deck cost depends on size, material, height off the ground and railing. National figures come from Bob Vila, and the Massachusetts prices are our own, from the deck page.
How Much Does a New Deck Cost?
Bob Vila reports a national average of $7,913, with most projects between $4,141 and $11,713, and a typical $30 to $60 per square foot, of which labor is $15 to $35. Our Massachusetts pricing runs higher because it covers a full installed deck with footings, framing, railing and finish, built by our own crew.
Which Decking Material Costs What?
For a 300 square foot deck we typically see:
| Material | 300 sq ft deck | Per square foot |
|---|---|---|
| Pressure-treated wood | $11,000 to $17,000 | $35 to $55 |
| Cedar | $15,000 to $21,000 | n/a |
| Composite (Trex or TimberTech) | $18,000 to $26,000 | $60 to $85 |
Composite costs more now and less to maintain later. Our composite vs pressure-treated comparison covers the long-run math.
How Much Does Deck Size Change the Price?
Bob Vila gives national examples of $2,400 to $4,800 for an 8 by 10 foot deck, $4,800 to $9,600 for 10 by 16, and $9,600 to $19,200 for 16 by 20. Height matters as much as footprint: a raised deck needs taller posts, more bracing and stairs, all of which add cost.
Planning a new deck?
We measure the site, review materials with you and give you a written price after a free in-home visit.
Get a Free Deck EstimateWhat Are the Extra Costs: Permits, Railings, Removal?
Bob Vila lists permits at $225 to $500, railings at $35 to $210 per linear foot, removal of an existing deck at $5 to $15 per square foot, and a roof over the deck at $3,000 to $10,000. Many Massachusetts towns require a building permit for a new deck, so check with yours and see our permit guide.
Should You Rebuild or Replace the Deck?
Replacing boards on sound framing is the cheapest fix. Once rot reaches the framing, a structural rebuild typically runs $8,000 to $15,000, which is why a small soft spot should be checked early. We inspect the framing and ledger first and tell you which route makes sense.
The Bottom Line
Budget $11,000 to $17,000 for a 300 square foot pressure-treated deck and $18,000 to $26,000 for composite in Massachusetts. A written, measured quote settles the exact number. Get a Free Deck Estimate
FAQ
How much does a 300 square foot deck cost?
In Massachusetts a 300 square foot deck typically runs $11,000 to $17,000 in pressure-treated wood, $15,000 to $21,000 in cedar and $18,000 to $26,000 in composite, installed.
How much does deck labor cost per square foot?
Bob Vila puts labor at $15 to $35 per square foot nationally, within an all-in range of $30 to $60 per square foot.
Do I need a permit to build a deck in Massachusetts?
Often yes. Bob Vila lists deck permits at $225 to $500, and rules vary by town, so confirm with your local building department. Our permit guide covers the common cases.