How Much Does Deck Building Cost?

Updated March 24, 2026 · Expert-verified answer

Quick Answer

Building a deck costs $15–$35 per square foot for pressure-treated wood and $30–$60/sq ft for composite. A 12x16 deck runs $3,000–$10,000. Elevated or multi-level decks cost more. Permits typically required.

Cost Breakdown

Service Low High Notes
Pressure-treated wood (per sq ft) $15 $35
Composite (per sq ft) $30 $60
12x16 deck $3,000 $8,000
Elevated deck $5,000 $15,000
Permit $100 $500

How Much Does Deck Building Cost?

Building a deck costs $15–$35 per square foot for pressure-treated wood and $30–$60/sq ft for composite. A 12x16 deck runs $3,000–$10,000. Elevated or multi-level decks cost more. Permits typically required.

Related Questions

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