Cost guides › Deck cost in 2026
Sourced data · 2026 guideBuilding a deck? Here is what published 2026 data says about total cost, cost per square foot, and wood vs composite.
| Measure | Cost | Source |
|---|---|---|
| Average deck build | $8,321 | Angi 2026 |
| Typical range | $4,339 – $12,653 | Angi 2026 |
| Per square foot | $30 – $60 | Angi 2026 |
| Permit fees | $230 – $500 | Angi 2026 |
| Wood deck addition (16×20, midrange) | $18,263 | Cost vs. Value 2025 |
| Composite deck addition | $25,096 | Cost vs. Value 2025 |
Angi figures are based on projects reported by Angi pros; Cost vs. Value figures describe a defined 16×20 ft deck addition, which is larger and more detailed than many typical decks, so it reads higher.
Upload it to the Bid Checker to see which line items look high or low for your region.
Check my bid ($49) Free ballpark first
Have plans? The Detailed report with plans is one flat $79 for any size, Phased Budget & Timeline included. Already have a bid? Bid Checker ($49 per bid).
Planning information only. Published averages describe typical projects, not yours. Figures are from the cited public source and dated as shown; Clear Scope Home is not affiliated with these sources. Get written bids from licensed local contractors.
More guides: all cost guides