Decks & Patios Cost Guide 2026
What to expect to pay, what drives costs up or down, and how to get an accurate estimate.
Typical cost
$4,000 – $20,000per project
Pressure-treated wood deck: $15–$25/sq ft. Composite deck: $25–$50/sq ft. Paver patio: $12–$25/sq ft. A typical 300 sq ft deck runs $4,500–$15,000.
What affects decks & patios cost
Pressure-treated wood deck: $15–$25/sq ft. Composite deck: $25–$50/sq ft. Paver patio: $12–$25/sq ft. A typical 300 sq ft deck runs $4,500–$15,000.
About decks & patios projects
Deck and patio contractors build new outdoor living spaces and replace aging structures using wood, composite decking, pavers, stamped concrete, and natural stone. Pressure-treated lumber is the most affordable decking material, while composite (Trex, TimberTech) offers low maintenance and longer warranties at a higher upfront cost. Decks attached to a house require a building permit and must meet code for ledger board attachment, joist spacing, railing height, and stair dimensions — improperly attached decks are a serious safety hazard. Patios are typically ground-level and may not require permits, but proper base preparation and drainage are critical for longevity.
How to keep decks & patios costs in check
- ✓Confirm the estimate specifies the decking material, framing lumber, and fastener system.
- ✓Ask about their approach to ledger board attachment and flashing — the #1 point of deck failure.
- ✓Verify they pull the required building permit for any attached or elevated deck.
- ✓Ask about the warranty on both materials and workmanship.
Cost FAQ
What is the average cost of decks & patios work?
The average cost ranges from $4,000 to $20,000 per project. Pressure-treated wood deck: $15–$25/sq ft. Composite deck: $25–$50/sq ft. Paver patio: $12–$25/sq ft. A typical 300 sq ft deck runs $4,500–$15,000.
Why do contractor estimates vary so much?
Material quality, project complexity, local labor rates, and contractor overhead all affect pricing. A 30–50% variance between bids on the same project usually means different scopes — get line-item estimates and compare carefully.
How can I lower the cost without sacrificing quality?
Schedule during off-peak times (spring and fall are busiest for most trades). Get 3+ competing bids. Avoid making scope changes after work starts. Supply your own materials if you can find better pricing (discuss with contractor first).
Does homeowner's insurance cover this work?
Typically only if the damage is sudden and accidental (storm, fire, burst pipe). Routine maintenance, wear and tear, and improvements are not covered. Check your policy for specifics.
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