How much does it cost to build a 12x16 deck?

A 12x16 ft (192 sq ft) deck costs $3,800–$8,600 for pressure-treated wood and $7,700–$15,400 for composite decking in 2026. These ranges include materials, labor, footings, and basic railing. Permit fees ($200–$1,500) and stairs add to the total. The final price depends on your region, deck height, and complexity of the design.

Is composite decking worth the extra cost?

Composite decking costs 50-100% more upfront than pressure-treated wood, but it requires almost zero maintenance — no staining, sealing, or sanding. Over a 20-year span, composite is often cheaper when you factor in the $500–$1,200 you'd spend every 2-3 years staining and sealing a wood deck. Composite also won't splinter, warp, or rot.

Do I need a permit to build a deck?

In most U.S. jurisdictions, yes. Any deck attached to the house or more than 30 inches above grade requires a building permit. Some cities require permits for all decks regardless of height. Permit fees range from $200 to $1,500. Your contractor should handle the permit application and all required inspections.

How long does it take to build a deck?

A standard 200-400 sq ft deck takes 1-3 weeks to build once permits are in hand. Permit approval adds 1-4 weeks depending on your municipality. More complex multi-level decks, covered decks, or decks with built-in features like benches or planters can take 3-5 weeks of construction time.

What is the cheapest deck material?

Pressure-treated pine is the most affordable decking material at $2–$5 per square foot for the boards alone. Installed with framing, footings, and railing, pressure-treated wood decks run $20–$45 per square foot total. Cedar is the next step up at $4–$8 per square foot for materials. Both require regular maintenance to prevent rot and weathering.

How Much Does a Deck Cost to Build in 2026?

April 17, 2026

A deck is one of the best returns on investment you can make as a homeowner — the 2026 Cost vs. Value Report shows wood decks recouping about 65% of cost at resale and composite decks about 58%. But before you break ground, you need to understand what drives the cost. In 2026, the national average cost to build a deck is $6,000 to $22,000, with high-end custom decks exceeding $50,000. Here's the full breakdown.

Cost Per Square Foot by Material

The decking material you choose is the single biggest factor in your total cost. Here are 2026 national averages for a fully installed deck (framing, footings, decking, railing, and labor):

Pressure-treated pine: $20–$45 per sq ft installed
Cedar: $30–$55 per sq ft installed
Redwood: $35–$65 per sq ft installed
Composite (Trex, TimberTech, Fiberon): $40–$80 per sq ft installed
PVC/cellular: $45–$90 per sq ft installed
Exotic hardwood (Ipe, Cumaru): $55–$110 per sq ft installed

These ranges include standard railing. Upgrade to cable railing ($80–$120/linear ft) or glass panels ($100–$200/linear ft) and the per-square-foot number rises significantly.

Cost by Deck Size

To make budgeting easier, here are total installed costs for the two most popular materials at common deck sizes:

Pressure-Treated Wood

10x10 (100 sq ft): $2,000–$4,500
12x16 (192 sq ft): $3,800–$8,600
16x20 (320 sq ft): $6,400–$14,400
20x24 (480 sq ft): $9,600–$21,600

Composite Decking

10x10 (100 sq ft): $4,000–$8,000
12x16 (192 sq ft): $7,700–$15,400
16x20 (320 sq ft): $12,800–$25,600
20x24 (480 sq ft): $19,200–$38,400

Wood vs. Composite: The Real Comparison

The upfront cost difference between wood and composite is substantial — composite costs 50-100% more to install. But the total cost of ownership tells a different story.

A pressure-treated wood deck needs staining or sealing every 2-3 years, costing $500–$1,200 each time (or $2–$4 per sq ft for professional application). Over 20 years, that's $3,500–$8,400 in maintenance alone. Wood boards also warp, crack, and splinter over time, requiring periodic board replacement at $5–$15 per board.

Composite decking requires virtually no maintenance beyond occasional cleaning with soap and water. Most manufacturers offer 25-year to lifetime limited warranties against structural defects, fading, and staining. Over a 20-year period, the total cost of a composite deck (install + maintenance) is often comparable to — or cheaper than — a wood deck.

What's Included in the Cost

A complete deck bid from a licensed general contractor should include these line items:

Footings and Foundation (10-15% of total)

Concrete footings or piers support the deck's weight. Most decks need footings every 6-8 feet. Expect $50–$150 per footing, with a typical deck requiring 6-12 footings. Helical piers ($150–$300 each) are an alternative in areas with difficult soil or frost lines.

Framing (20-30% of total)

The structural skeleton — joists, beams, ledger board, and posts. Framing is almost always pressure-treated lumber regardless of the decking material. Budget $5–$12 per square foot for framing materials and labor. The ledger board attachment to the house is critical — improper ledger connections are the leading cause of deck collapses.

Decking Boards (25-35% of total)

The surface you walk on. This is where the material choice makes the biggest cost difference. Board costs range from $2/sq ft for pressure-treated pine to $15+/sq ft for Ipe hardwood. Labor to install decking runs $3–$8 per square foot.

Railing (15-20% of total)

Railing is required by code on any deck more than 30 inches above grade. Options and their installed costs per linear foot:

Wood railing: $20–$45/linear ft
Composite railing: $30–$60/linear ft
Aluminum railing: $40–$80/linear ft
Cable railing: $80–$120/linear ft
Glass panel railing: $100–$200/linear ft

A 300 sq ft deck has roughly 50-70 linear feet of railing, so railing choice significantly impacts the total.

Stairs (5-10% of total)

A basic set of deck stairs (4-6 steps) costs $500–$2,000 depending on width and material. Wider stairs (48-60 inches) or curved stairs cost more. Each set of stairs also needs its own footings.

Permits and Inspections (2-5% of total)

Deck permits cost $200–$1,500 depending on your municipality and the deck's size. Your contractor handles the application and schedules inspections at key milestones (footings, framing, final). Learn more about permit requirements by project type.

Features That Add Cost

These popular upgrades push costs higher:

Built-in benches: $500–$2,000 per bench
Pergola or shade structure: $3,000–$12,000
Built-in lighting (low-voltage LED): $1,000–$4,000
Under-deck drainage system: $1,500–$4,000 (creates dry space below a second-story deck)
Multi-level design: 25-50% more than a single-level deck of the same total area
Covered roof over deck: $5,000–$20,000
Hot tub support framing: $1,000–$3,000 (structural reinforcement for the weight)

Labor Costs

Labor typically represents 50-60% of the total deck cost. In 2026, deck builders charge $15–$35 per square foot for labor, depending on your region and the complexity of the build. Factors that increase labor costs:

Sloped or uneven terrain (requires taller posts and more complex framing)
Second-story decks (scaffolding, safety equipment, longer posts)
Demolition of an existing deck ($3–$5/sq ft for removal and disposal)
Limited site access (if materials can't be delivered close to the build area)

Regional Cost Differences

Where you live affects deck costs substantially:

Northeast (NYC, Boston, DC): $45–$100/sq ft installed
West Coast (SF, LA, Seattle): $40–$90/sq ft installed
Midwest (Chicago, Minneapolis, Denver): $30–$70/sq ft installed
Southeast (Atlanta, Charlotte, Nashville): $25–$60/sq ft installed
Southwest (Houston, Phoenix, Dallas): $25–$55/sq ft installed

How to Save on Deck Costs

Ways to reduce your deck budget without cutting corners on safety:

Choose a simple rectangular design. Angles, curves, and multi-level layouts increase framing complexity and waste.
Use pressure-treated wood for framing, composite for decking. You get composite's low maintenance where it matters (the surface) without paying composite prices for structure you can't see.
Build in the off-season. Many contractors offer 10-15% discounts for projects scheduled in late fall or winter.
Limit the railing upgrades. Standard composite or aluminum railing is 50-70% cheaper than cable or glass.
Skip the built-ins. Freestanding furniture and planters are cheaper than built-in benches and flower boxes.

Get bids from at least three general contractors in your area to compare pricing. Read our guide on how to read a contractor's estimate so you can compare bids apples-to-apples.

Frequently Asked Questions

How much does it cost to build a 12x16 deck?: A 12x16 ft (192 sq ft) deck costs $3,800–$8,600 for pressure-treated wood and $7,700–$15,400 for composite decking in 2026. These ranges include materials, labor, footings, and basic railing. Permit fees ($200–$1,500) and stairs add to the total. The final price depends on your region, deck height, and complexity of the design.
Is composite decking worth the extra cost?: Composite decking costs 50-100% more upfront than pressure-treated wood, but it requires almost zero maintenance — no staining, sealing, or sanding. Over a 20-year span, composite is often cheaper when you factor in the $500–$1,200 you'd spend every 2-3 years staining and sealing a wood deck. Composite also won't splinter, warp, or rot.
Do I need a permit to build a deck?: In most U.S. jurisdictions, yes. Any deck attached to the house or more than 30 inches above grade requires a building permit. Some cities require permits for all decks regardless of height. Permit fees range from $200 to $1,500. Your contractor should handle the permit application and all required inspections.
How long does it take to build a deck?: A standard 200-400 sq ft deck takes 1-3 weeks to build once permits are in hand. Permit approval adds 1-4 weeks depending on your municipality. More complex multi-level decks, covered decks, or decks with built-in features like benches or planters can take 3-5 weeks of construction time.
What is the cheapest deck material?: Pressure-treated pine is the most affordable decking material at $2–$5 per square foot for the boards alone. Installed with framing, footings, and railing, pressure-treated wood decks run $20–$45 per square foot total. Cedar is the next step up at $4–$8 per square foot for materials. Both require regular maintenance to prevent rot and weathering.