How Much Does a Deck Building Cost? (2026)
A new deck extends your living space outdoors and adds significant resale value. Pressure-treated wood is the most affordable decking material, while composite (like Trex) and hardwood options cost more but require less maintenance over time. Size, elevation, and railing style all impact the final price.
National Average Cost
Low End
$5,000
Average
$15,000
High End
$35,000
Cost Breakdown
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Project Details
Timeline
1–3 weeks
Permits
Required in most areas; must meet structural and setback codes
Best Season
spring
Frequently Asked Questions
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Deck Building Cost by State
Costs vary significantly by location. Select your state for localized pricing:
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