Cost to Build a Composite Deck
Learn the cost to build a composite deck by doing it yourself compared with the cost a deck contractor will charge. Find out what steps are involved and how to plan the job. Enter your ZIP Code to adjust the cost to where you live.
A deck is one of the most popular additions to a house because it expands the living space by incorporating the yard and garden into outdoor living space. In seasonally warm climates, a deck becomes a favorite place, whether it’s used to read a book, take a nap, dine alfresco or simply enjoy the pleasure of being outside.
Building a deck is no trivial pursuit; it takes a lot of man-hours, not to mention strength and stamina. To build a 300-square-foot ground level deck made of Trex, a composite material made of reclaimed wood and plastic, a contractor will charge $3,651, which includes the labor and material. The material comes in several finishes and color choices, so there’s no finishing required. If you’re an experienced carpenter, have power tools and know how to use them, you can buy the material and fasteners for $2,600 and do it yourself, saving 29 percent.
The building process involves planning the design, laying out the deck for size and height, locating the posts, installing joists and bracing, attaching the deck to the house, installing the foundation piers, installing the decking, and completing the deck with stairs or a railing, if needed.
Before you dive into building a deck, check with your local building department to learn about code requirements. And check your property survey to make sure you know exactly where your property lines are.
National Average Cost
Build a Composite Deck
- DIY 52%
- PRO 48%