It depends on the size of your deck, the materials you choose, and whether you do the work yourself or hire a contractor. A basic deck made from pressure-treated lumber might cost around $7 per square foot to build, while a cedar deck could cost $20 or more per square foot. Materials like exotic hardwoods or composite materials will be even more expensive. If you hire a contractor to do the work, expect to pay several hundred dollars for even a small deck.

It cost $5,000 to redo a deck. The cost of redoing a deck varies depending on the size of the deck, the materials used, and the contractor hired. Typically, deck repairs or renovations range from $3,000 to $10,000. However, in some cases, such as when a new coat of paint or staining is all that is needed, the cost may be lower. And if the existing deck is in good condition but needs new railings or stairs, the price may be higher.