How Much Does Deck Building Cost? [2026 Data]

Deck building costs $1,890–$15,000. Pressure-treated wood runs $25–$40 per sq ft; composite $40–$65; hardwood (ipe, cedar) $35–$50.

Size, height, stairs, and railings affect price. Permits may be required. Repair or refinishing existing decks runs $400–$2,500.

Composite lasts longer with less maintenance. Get a structural plan for elevated decks.