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Composite Decks

Custom Deck Builders Serving Massachusetts, Rhode Island & Southern New Hampshire

A walnut composite deck with chairs facing an exterior fireplace.

Custom Trex® & TimberTech® Decks Designed & Built for Low-Maintenance Outdoor Living

Upgrade your backyard with a custom composite deck from Dex by Terra. We design and build with premium Trex® and TimberTech® decking, offering a durable, low-maintenance alternative to wood that resists fading, staining, splintering, and warping.

Our in-house team of designers and carpenters handle every step—from consultation and design to expert construction—delivering precision and lasting quality. Each deck is tailored to your home and built for how you live, entertain, and relax.

New Composite Decks

Create your perfect outdoor space with a custom composite deck from Dex by Terra. Built with Trex® and TimberTech®, our decks combine low-maintenance durability with elegant design, perfect for entertaining and everyday outdoor living.

Grey backyard deck with dining area and lounge chairs overlooking water.

Deck Remodels & Additions

Extend the life, update the look, and extend the size of your deck with new composite decking. From deck board replacement to railing updates and LED lighting, we restore safety, functionality, and style. Our team delivers cost-effective solutions that enhance performance and extend the lifespan of your outdoor living space.

Tan decking with modern black metal railings. Dining and lounge areas.

Tailored Deck Styles

From multi-level layouts to modern railing systems, our composite decks are fully customizable to suit your home and lifestyle.

Some Popular Deck Styles:

  • Multi-Level Decks
  • Wraparound Decks
  • Enclosed Decks
  • Platform Decks
Interior of the three-season, screened-in porch with stone veneer gas fireplace insert. Trex decking. Landscape design in Dunstable, MA built by Dex by Terra.
A brown platform deck extends into the backyard from a red New England home.
A closeup of grey composite decking showing texture.
A small backyard composite deck with steps, flowers, and string lights on the white PVC deck railings.
A closeup of brown composite decking showing texture.
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A brown platform deck extends into the backyard from a red New England home.
A closeup of grey composite decking showing texture.
A small backyard composite deck with steps, flowers, and string lights on the white PVC deck railings.
A closeup of brown composite decking showing texture.
A backyard deck with brown composite decking and white PVC railings.
An evening scene on a backyard composite deck with chairs and string lights.
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Thank you, Dex by Terra! We have always been truly satisfied with the services and communication, from design to installation to maintenance. We will continue to use them in the future and highly recommend them. Extremely satisfied!

Lisa & Jim Abdallah

“

Dex completed a huge backyard project for us, starting with the overall design and layout of the pool, pool house, hot tub, stamped concrete, firepit circle, outdoor kitchen, and overall outdoor living space... It was a complex, year-long project, but they remained committed until completion, and we are thrilled with the result!

Peter Ten Hagen

“

It's always a roll of the dice when hiring a new company for a home project. When we decided to build a pool, patio, and outdoor kitchen, we did our research and found Dex to be one of the leading and most affordable builders in the greater New England area. I highly recommend them—this is the best quality you’ll get for the money spent.

CJ Vasani

TimberTech Logo
Interior of the three-season, screened-in porch with stone veneer gas fireplace insert. Built with Trex composite decking. Landscape design in Dunstable, MA built by Dex by Terra.

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