The average new deck installation costs $7,674 with a typical range of $4,154 and $11,194.Labor and materials each make up roughly 50% of the budget for a total average cost of $30 to $60 per square foot. 2 Enter your deck dimensions (FT.) X = 320 SQ. Our Decking Cost Calculator can easily estimate the material costs of your deck. FT. 3 Will your deck … Hiring someone to construct a wood deck can cost $8-$75 or … According to our deck building cost estimator, the average cost to install a deck is $6,200. While building a deck … 12X14 RECTANGLE DECK 12 ft 14 ft Total square footage: 168 BEYOND BASIC CONSTRUCTION TOOLS, YOU WILL NEED: DIY TIPS TO REMEMBER: Take this to a builder or dealer to get all the components & estimates necessary for your ideal deck Easy for DIYers to build (25) 1 x 6 x 16' Trex® Grooved-Edge Deck Boards (1) 1 x 6 x 16' Trex Square-Edge Deck … Well, that’s priceless. Average costs and comments from CostHelper's team of professional journalists and community of users. However, this price assumes you’re hiring a decking contractor. Compare that to the national average cost … The value of enjoying your new outdoor living space? Expect to pay a total of $16,000 for a 16-foot by 20-foot deck … 1 Select your location. Deck Cost Calculator. U.S.A. Canada. According to the “Cost vs. Value Report” from “Remodeling” magazine, the national average cost to have a basic, all-pressure-treated wood deck professionally built is $31 per square foot. How much a deck should cost.