How Much Does a Deck Cost?
Published January 15, 2026 · 8 min read
The short answer: most homeowners spend $4,500 to $15,000 on a new deck — roughly $30 to $60 per square foot installed. Pressure-treated builds come in cheaper at $15–$25/sqft, while premium composite or hardwood can push past $75/sqft.
The exact number depends on five things: the deck's size, material, height off the ground, your region, and whether you DIY or hire a contractor. Use our free deck cost calculator to plug in your specifics.
Average Deck Cost by Size
The most common deck sizes and what they typically cost in 2026:
| Size | Sqft | Pressure-Treated | Composite | Hardwood |
|---|---|---|---|---|
| 10×10 | 100 | $2,000–$3,500 | $3,500–$6,000 | $5,500–$9,000 |
| 12×12 | 144 | $2,800–$4,800 | $4,800–$8,500 | $8,000–$12,500 |
| 12×16 | 192 | $3,800–$6,200 | $6,500–$11,000 | $10,500–$16,000 |
| 16×20 | 320 | $6,000–$10,500 | $10,500–$18,000 | $17,000–$26,000 |
| 20×20 | 400 | $7,500–$13,000 | $13,000–$23,000 | $21,000–$32,000 |
Cost by Material
Pressure-treated pine ($15–$25/sqft installed)
The budget pick. Strong, widely available, and easy to work with — but requires staining every 2–3 years and typically lasts 15–20 years.
Cedar ($20–$35/sqft)
Naturally rot-resistant with beautiful grain. Softer than pressure-treated, so it dents more easily.
Composite — entry level ($30–$45/sqft)
Trex Enhance, Fiberon Sanctuary. Low-maintenance, 25-year fade warranty, and a consistent appearance.
Premium composite & PVC ($40–$65/sqft)
Trex Transcend, TimberTech AZEK. Best fade and scratch protection, premium look, and 30+ year lifespans.
Hardwood — Ipe, Mahogany ($50–$75/sqft)
Stunning real wood with unmatched durability. Hardest to install (every screw must be pre-drilled).
What's Included in Deck Cost
- Decking boards and structural lumber (joists, beams, posts)
- Concrete footings and post anchors
- Fasteners, joist hangers, and hardware
- Standard railings and stairs
- Permit fees (where applicable)
- Contractor labor — typically 35–45% of the total
Hidden Costs Most People Forget
- Old deck demolition: $500–$2,500
- Electrical for outlets or hot tub: $400–$1,800
- Landscaping repair: $200–$800
- Premium finish details (hidden fasteners, picture-framing): +10–15%
- Site prep — grading, tree removal, retaining walls
For a precise number that includes regional pricing, run your numbers through our deck cost calculator.
How to Save Money on Your Deck Build
- Build off-season. Late winter and fall offer 10–20% better pricing.
- Stick to a rectangle. Custom shapes add 15–25% in labor.
- Get 3 quotes. Pricing varies wildly by contractor backlog.
- Buy your own material. Some pros allow this; you keep the markup.
- DIY railings or stairs only. Leave structural work to professionals.
Compare configurations side-by-side in our deck cost calculator to find the sweet spot for your budget.
Frequently asked questions
How long does a deck last?
Pressure-treated decks typically last 15–20 years. Composite and PVC decks last 25–30+ years. Hardwood like Ipe can exceed 40 years with care.
Is composite decking worth the higher cost?
For most homeowners, yes. Over a 20-year period composite usually costs less than wood once you factor in staining and replacement boards.
Do I need a permit to build a deck?
In almost all jurisdictions, yes — especially for decks over 30 inches off the ground or attached to a house. Permits typically run $100–$500.
Gear and supplies featured in this guide
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Outdoor Solid Composite Decking Boards 96"x5.43"x1", Polymer Composite Decking for All Weather Use,Poolside,Backyard,Patio(6 Pcs,Redwood and Maple,21.72sqft)
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8 Pcs ABS Deck Spacer Tool, 4 Thicknesses Deck Board Spacers (1/16", 1/8", 3/16", 1/4") for Pressure Treated Lumber, Composite Decking, PVC & Hardwood Boards
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Ultimate Guide: Decks, Updated 6th Edition: Plan, Design, Build (Creative Homeowner) DIY Your Own Deck - Expert Installation Tips, Building Techniques, Step-by-Step Instructions, and Over 700 Photos
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Outdoor Solid Composite Decking Boards 96"x5.43"x1", Polymer Composite Decking for All Weather Use,Poolside,Backyard,Patio(6 Pcs,Rosewood and Light Grey,21.72sqft)
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