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.
Gear and supplies featured in this guide
As an Amazon Associate I earn from qualifying purchases.
CAMO EDGEClip Universal Hidden Deck Fastener Clip (900 ct) | (0344356), 305 Stainless Gusset and Screw, Clip Creates 3/16 in (4.7 mm) Spacing, For Use With Composite Decking Boards
$349.40
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SVLING 340Pcs Multi-Purpose Wood Deck Screw Kit,#8#9 Bugle Head for Interior and Exterior Use,Star Drive Torx Golden Coated with T15/T25 Bit
$23.99
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Black and Decker Deck Codes and Standards 2nd Edition: How to Design, Build, Inspect, and Maintain a Safer Deck
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$12.21List Price:: $24.99
ShunHong Outdoor Solid Composite Decking Boards Color Samples Pack | Polymer Composite Decking for All Weather Use,Poolside,Backyard,Patio(3 Pcs, 0.5ft Color Samples)
$15.99
Check price on AmazonPrices and savings as of Oct 25, 2026, 4:32 AM UTC. Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.
Shopping for someone? See our backyard gift guide for deck builders & DIYers.
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.
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