Deck Building Cost Calculator

Calculate the cost of building a new deck or replacing an existing one with our deck cost calculator. Enter your desired deck size, select your decking material, and specify features like railings, stairs, and built-in seating to get a detailed cost estimate that covers materials, hardware, and labor.

Decking material is the biggest factor in your overall project cost. Pressure-treated lumber is the most affordable option and remains popular for budget-conscious projects. Cedar and redwood offer natural beauty and rot resistance at a moderate price increase. Composite decking materials like Trex, TimberTech, and Azek cost more upfront but require significantly less maintenance over their lifespan and never need staining or sealing. Our calculator provides cost estimates for all major material categories.

Beyond the decking surface itself, the calculator includes costs for the substructure including posts, beams, joists, and concrete footings. It accounts for railings, which can range from simple wood balusters to glass panels or cable rail systems. If your deck design includes stairs, the tool estimates both the stair stringers and treads. Additional features like pergolas, privacy screens, and built-in planters can also be factored in. The tool applies regional labor rate adjustments and includes permit fees that most municipalities require for deck construction. Compare material options side by side to find the best balance of upfront cost and long-term value for your outdoor living project.