How Much Does a New Deck Cost on the South Shore?

A new deck is one of the best outdoor investments you can make on the South Shore. It gives you a place to grill, eat, relax, and enjoy the view. But how much should it cost? The answer depends on the material, the size, the design, and the site conditions. Here is a clear breakdown so you know what to expect.

What drives the cost of a deck

Material. This is the biggest factor. You have three main choices:

Pressure-treated wood is the most affordable. It is strong, holds up well with regular staining, and is easy to work with. Most South Shore decks are built with pressure-treated framing regardless of the decking material.

Cedar costs more than pressure-treated but has a natural resistance to rot and insects. It weathers to a silver gray if left untreated or can be stained to keep its warm color.

Composite decking (brands like Trex, TimberTech, and Azek) costs the most up front but needs almost no maintenance. No staining, no sealing, no replacing rotted boards. Over 20 years, the total cost is often similar to wood because you skip all the maintenance expense.

Size. A 12x16 foot deck is a standard mid-size project. A wrap-around deck, a multi-level design, or a large entertaining space costs more because of the additional framing, decking, and labor.

Height and access. A ground-level deck on a flat yard is the simplest build. A raised deck that is 8 or 10 feet off the ground needs taller posts, more bracing, and a staircase. The higher and more complex the structure, the more it costs.

Railings. Basic wood railings are included in most builds. Cable railings, glass panels, or custom metal railings cost more but add a clean, modern look that many South Shore homeowners prefer, especially on waterfront properties where you want to keep the view open.

Features. Built-in benches, planter boxes, pergolas, lighting, and under-deck storage all add to the price. These features make the deck more functional and enjoyable, but each one adds labor and materials.

Permits. Hull and most South Shore towns require a building permit for a new deck. The permit process includes a plan review and an inspection. The fee is usually a few hundred dollars. Some coastal properties may also need conservation commission approval if the deck is near wetlands or a flood zone.

Rough cost ranges

Every project is different, but here are general ranges for the South Shore:

Pressure-treated wood deck: $30 to $50 per square foot installed. A 200 square foot deck runs roughly $6,000 to $10,000.

Cedar deck: $40 to $65 per square foot installed. The same 200 square foot deck runs $8,000 to $13,000.

Composite deck: $50 to $80 per square foot installed. A 200 square foot deck runs $10,000 to $16,000.

These ranges include materials, labor, basic railings, and the stairs. They do not include demolition of an old deck, major site work, or premium features.

Is a deck a good investment?

Yes. A well-built deck adds real value to a South Shore home. Outdoor living space is a top priority for buyers in this area. A deck that overlooks the water, connects to the kitchen, or creates a space for entertaining adds both function and appeal.

Industry data consistently shows that decks return 60% to 80% of their cost at resale, making them one of the better home improvement investments. And unlike a kitchen remodel that you only enjoy inside, a deck gives you years of outdoor use.

Wood vs. composite: which one?

If you want the lowest up-front cost and do not mind staining every few years, wood is a great choice. Cedar gives you a premium look; pressure-treated gives you the best value.

If you want a low-maintenance deck that looks good for decades without staining, composite is the way to go. The higher up-front cost is offset by zero maintenance. No sanding, no staining, no replacing warped or rotted boards.

We build with all three materials and can help you pick the one that fits your budget and your lifestyle.

How long does a deck build take?

A standard deck takes about one to three weeks from start to finish, depending on the size and complexity. A simple ground-level deck on a flat yard can go up in a week. A large raised deck with stairs, railings, and built-in features takes closer to three weeks.

Permit timelines vary by town. Hull and most South Shore communities require a building permit for any new deck. The permit review can take a week or two, so factor that into your planning. Once the permit is approved, the build starts and moves quickly.

Weather can be a factor on the South Shore. Rain delays are common in spring and fall. Summer is the best season for deck building, but that is also when demand is highest. Planning ahead and booking your project early gives you the best shot at your preferred timeline.

Get a free estimate from Walbridge Construction

We are a veteran-owned general contractor based in Hull, MA. We build decks, additions, kitchens, baths, and full home remodels across the South Shore. Every project gets a detailed written estimate, a clear timeline, and quality craftsmanship.

Call us or request a free estimate. We serve Hull, Hingham, Cohasset, Scituate, Quincy, and Weymouth.

Related service: Deck Building