Deck Building Cost Estimator
Estimate the total cost of building a deck.
Calculate materials, lumber, and labor based on deck size, wood type, and hourly rate.
Understanding Deck Building Costs
Building a deck is one of the highest-return home improvement projects you can undertake. A well-built deck typically returns 60–80% of its cost in added home value, and it provides years of outdoor living enjoyment. Costs vary significantly based on the wood species, the complexity of the design, your local labor market, and permit fees.
Decking Board Coverage
Standard decking boards are sold in linear feet and are typically 5/4 x 6 inches (which finishes to about 5.5 inches wide). When laid with a 1/8-inch gap between boards for drainage and expansion, each linear foot of board covers roughly 0.46 square feet. To cover a given area, divide the total square footage by 0.46 — then add 10–15% for end cuts, waste, and boards that must be discarded for knots or defects.
Wood Type Comparison
Pressure-treated pine is the most affordable option, costing roughly $2–4 per linear foot. It must be stained or sealed regularly (every 2–3 years) to prevent splitting. Cedar is naturally rot-resistant and has a beautiful color, costing $3–6 per linear foot. It is softer than most woods, so it may dent in high-traffic areas. Composite decking (e.g., Trex, TimberTech) costs $4–8 per linear foot but requires almost no maintenance and lasts 25–30 years. Hardwood ipe (Brazilian ironwood) is extremely dense and naturally resistant to rot and insects, costing $8–15 per linear foot. It requires specialized tools and fasteners due to its hardness.
Labor Rates
Professional deck installation typically costs $15–35 per square foot in labor, depending on complexity and region. A simple ground-level deck is at the low end; an elevated deck with stairs, railings, and built-in benches is at the high end. DIY labor saves 40–60% of total project cost but requires carpentry skill, proper tools, and building permits.
Permit and Hidden Costs
Always budget for building permits ($100–$500 in most areas), concrete for footings, joist hangers, screws, and post anchors. These “hidden” materials typically add 15–25% to the lumber cost.