How Much Does It Cost to Build a Deck in 2026?
A standard 16×12 pressure-treated deck runs $5,500–$9,000 installed. The same deck in composite decking is $12,000–$18,000. Here's what drives the difference — and how to get the most deck for your money.
Cost by Material — 16×12 Deck (192 sq ft)
| Material | Cost Installed | Maintenance |
|---|---|---|
| Pressure-treated pine | $5,500 – $9,000 | Seal every 1–2 yrs |
| Cedar or redwood | $8,000 – $14,000 | Seal every 2–3 yrs |
| Composite (mid-grade, Trex) | $12,000 – $18,000 | Wash annually |
| Composite (premium) | $16,000 – $24,000 | Minimal |
| Hardwood (Ipe) | $20,000 – $30,000 | Oil every 1–2 yrs |
Includes framing, 1 stair flight, and 40 LF of railing. Use the deck calculator for your exact dimensions and state.
What's Included in a Deck Quote?
A complete deck quote should cover:
- • Footings and posts — concrete footings poured below frost line
- • Ledger board and flashing (where deck attaches to house)
- • Framing — beam, joists, blocking
- • Decking boards — the surface you walk on
- • Railing — balusters, top/bottom rails, post caps
- • Stairs — stringers, treads, handrail
- • Permit and inspection
Watch for quotes that exclude footings, permit fees, or railing. Get itemized breakdowns — a lump-sum bid makes it impossible to compare contractors or understand scope.
Composite vs. Pressure-Treated: The Real Numbers
The upfront cost difference on a 16×12 deck is roughly $6,000–$9,000 in favor of PT wood. But over 20 years, the maintenance costs largely close that gap:
| Cost Factor | PT Wood (20 yrs) | Composite (20 yrs) |
|---|---|---|
| Initial installation | $7,000 | $15,000 |
| Staining/sealing (every 2 yrs) | $2,400 | $0 |
| Board replacements | $800 | $200 |
| 20-year total | $10,200 | $15,200 |
The gap narrows significantly with composite, especially if you factor in time and the hassle of annual maintenance. For a 25–30 year view, composite often wins on total cost.
What Adds Cost You Might Not Expect
- •Elevated deck (over 30 inches off grade) — requires structural engineering and more robust footings. Add $2,000–$5,000 vs. ground-level.
- •Wraparound or multi-level design — extra corners and angles mean more framing labor. Add 30–50% vs. a basic rectangle.
- •Built-in features — benches ($500–$1,500), planters, pergola, or hot tub platform all add substantially to the project total.
- •Ledger removal and house wrap repair — if the old ledger was incorrectly flashed, expect $500–$2,000 in remediation before new ledger installation.
Permits: Don't Skip Them
Most municipalities require a permit for decks over 200 sq ft or more than 30 inches above grade. Permits cost $100–$400 and require a site inspection.
Unpermitted decks create real problems at resale: buyers' lenders won't lend on homes with known unpermitted work, and you may be required to tear the deck down or retroactively permit it (often requiring structural modifications). Always pull the permit.
Cost by State
For a standard 16×12 cedar deck with railing and one stair flight:
| State | Vs. National Avg | Estimated Cost |
|---|---|---|
| California | +25% | $10,000 – $17,500 |
| Washington | +18% | $9,400 – $16,500 |
| Texas | +3% | $8,200 – $14,400 |
| Florida | +5% | $8,400 – $14,700 |
| Tennessee | −8% | $7,400 – $12,900 |
| Mississippi | −15% | $6,800 – $11,900 |
Calculate Your Deck Cost
Enter deck dimensions, material, railing, and stairs — see a state-adjusted cost breakdown instantly.
Frequently Asked Questions
How long does it take to build a deck?
A ground-level 16×12 deck takes an experienced crew 2–4 days. Add a day for complex designs, elevated decks, or extensive railing work. Permit approval can add 1–3 weeks to the total project timeline.
Can I build a deck myself to save money?
Yes — DIY labor savings are roughly $2,000–$5,000 on a standard deck. The framing is straightforward carpentry. The permit and footing inspection, however, must meet code. Most DIY deck projects are feasible for homeowners with basic carpentry skills, a week of free time, and help from a friend.
Does a deck increase home value?
Yes — a wood deck recoups about 65% of cost at resale nationally; composite decks around 63%. In markets with strong outdoor living culture (Pacific Northwest, Southeast, Mountain West), premium decks can return 80%+. A deck is generally worth building for your own enjoyment — treat the ROI as a bonus.
How far from the property line does a deck need to be?
Setback requirements vary by municipality but typically range from 3–10 feet from the property line and 5 feet from easements. Your permit application will flag any setback issues. Check before you design — moving a planned deck location costs nothing; moving a permitted footing costs a lot.