Cost of a Composite Deck - Estimates and Prices Paid. A composite deck can cost $25-$70 or more a square foot, or $8000-$22400 for 16'x20', depending on the brand, . for a 16'x20' composite deck with a simple linear pattern, railings, three steps, and a built-in bench and planter, installed by a .
The Best Composite Deck Bench Plans Free Download. Our plans taken from past issues of our Magazine include detailed instructions cut lists and illustrations - everything you need to help you build your next project..