How Much Does a Deck Cost in 2026: Material and Labor by Size
A new deck costs $15 to $35 per square foot for pressure-treated wood and $25 to $55 per square foot for composite decking, both installed by a professional. A standard 12×16 deck (192 sq ft) runs $2,880 to $6,720 in pressure-treated wood or $4,800 to $10,560 in composite. How much does a deck cost depends on size, material, height above grade, complexity (stairs, railings, built-in features), permit requirements, and local labor rates.
A deck is one of the highest-ROI outdoor improvements for US homeowners. It adds usable living space, improves the home’s connection to the yard, and typically returns 60 to 75 percent of its cost at resale according to Remodeling magazine’s annual Cost vs Value survey. Deck costs have risen significantly since 2020 due to pressure-treated lumber price increases and supply chain effects on composite materials; 2026 pricing reflects a stabilized but higher material cost baseline than pre-2020 estimates.
The deck cost calculator gives you a material and labor estimate for any deck size, material, and configuration.
Open the Deck Cost Calculator →Deck Installation Cost by Size in 2026
| Deck size | Square footage | Pressure-treated wood | Composite decking |
|---|---|---|---|
| 10×10 (small) | 100 sq ft | $1,500 to $3,500 | $2,500 to $5,500 |
| 12×16 (standard) | 192 sq ft | $2,880 to $6,720 | $4,800 to $10,560 |
| 16×16 | 256 sq ft | $3,840 to $8,960 | $6,400 to $14,080 |
| 16×20 (large) | 320 sq ft | $4,800 to $11,200 | $8,000 to $17,600 |
| 20×24 (wraparound) | 480 sq ft | $7,200 to $16,800 | $12,000 to $26,400 |
Deck Material Cost Comparison
| Decking material | Material per sq ft | Installed per sq ft | Maintenance | Lifespan |
|---|---|---|---|---|
| Pressure-treated pine | $3 to $7 | $15 to $30 | Stain every 2-3 yrs | 15 to 25 yrs |
| Cedar | $5 to $12 | $18 to $38 | Stain every 2-3 yrs | 20 to 30 yrs |
| Redwood | $8 to $18 | $22 to $45 | Stain every 2-3 yrs | 20 to 35 yrs |
| Composite (entry) | $8 to $14 | $25 to $40 | Annual cleaning only | 25 to 30 yrs |
| Composite (premium) | $14 to $22 | $35 to $55 | Annual cleaning only | 30 to 40 yrs |
| PVC decking | $12 to $20 | $30 to $50 | Minimal | 30+ yrs |
| Hardwood (ipe, tigerwood) | $10 to $25 | $28 to $55 | Annual oiling | 25 to 50 yrs |
For the long-term cost comparison between composite and wood decking including maintenance costs, our composite vs wood decking guide covers the 20-year total cost with and without maintenance. For estimating the flooring inside the home to match the outdoor project, our flooring comparison guide covers interior flooring costs alongside the deck material decision.
What Drives Deck Cost Variation
Height above grade
A ground-level or low deck (under 30 inches from grade) has minimal post requirements and no mandatory staircase code requirements. A deck elevated 8 to 16 feet above grade (second-story deck over a walkout basement, for example) requires larger structural members, more footings and posts, a full staircase, and significantly more labor, adding 30 to 50 percent to the per-square-foot cost. Elevated decks also require engineering review and structural permits in most jurisdictions.
Stairs and railing
A deck staircase adds $800 to $2,500 depending on the number of steps and material (treated wood, composite, or hardwood treads). Railing is typically priced at $150 to $500 per linear foot for composite or aluminum railing systems, which adds $3,000 to $10,000 for a 20 to 30-linear-foot perimeter railing on a standard deck. Simple 2×4 wood rail systems cost $20 to $60 per linear foot installed. The railing system is often the largest single variable in deck cost after material selection.
Permits
Most US municipalities require a building permit for decks above 30 inches in height or attached to the house. Permit fees vary from $150 to $1,200 depending on jurisdiction and project valuation. Decks built without permits create significant problems at resale: lenders and buyers require documentation of permitted construction, and unpermitted decks must either be retroactively permitted (with inspection and possible modification) or removed. Always pull the required permit before construction begins.
DIY vs Professional Deck Construction
Deck construction is achievable for a skilled DIYer who is comfortable with basic framing, concrete footings, and working at elevation. DIY savings: $10 to $20 per square foot in labor, or $1,920 to $3,840 on a 192 sq ft deck. The primary challenges are: setting footings correctly (depth below frost line is code-required and structural), framing to local code joist and beam sizing requirements, and installing railing to code specifications for graspability and height. Many homeowners successfully DIY the decking surface while hiring a framing contractor for the structural elements.
Three Real Deck Projects
Example 1: Pressure-treated 12×16 deck in Columbus, Ohio
A homeowner building a 12×16 pressure-treated deck at 24 inches above grade, attached to the house, with a 4-step staircase and composite railing. Decking surface: 192 sq ft of 5/4×6 treated pine decking at $5.80/sq ft material = $1,114 material. Framing, posts, footings, hardware (contractor-provided): $2,200. Composite railing (28 lft): $4,200 (premium railing system at $150/lft). Staircase (4 steps, treated): $880. Permit: $180. Professional labor: $3,200. Total: $11,774. The homeowner considered DIY but chose professional for the structural framing; they plan to DIY a future pergola over the deck.
Example 2: Composite 16×20 deck in Charlotte, North Carolina
A homeowner installing a 16×20 composite deck with Trex Transcend series decking, hidden fasteners, and aluminum railing. 320 sq ft of composite at $18/sq ft material = $5,760 material. Pressure-treated framing and footings: $3,400. Aluminum railing (40 lft): $5,200. Professional labor: $4,800. Permit: $320. Total: $19,480. The homeowner chose composite for the low maintenance requirement: Charlotte’s humidity and rain make treated wood decking require staining every 18 to 24 months, while the composite requires only an annual cleaning.
Example 3: DIY ground-level cedar deck in Portland, Oregon
A homeowner DIY-building a ground-level 14×18 cedar deck on concrete piers (no footings required by code for decks under 18 inches at grade in this jurisdiction). 252 sq ft of cedar decking at $9.50/sq ft material = $2,394. Cedar framing and hardware: $1,100. No railing (ground-level; no code requirement). Concrete piers: 8 x $18 = $144. Permit: $0 (ground-level, not attached to house, under local permit threshold). Tools (saw, drill, level): already owned. Total materials: $3,638. Professional quote for the same deck: $8,500 to $11,000. DIY savings: $4,862 to $7,362.
The deck calculator gives you material and labor cost for any size, material, and height configuration.
Calculate Deck Cost →Frequently Asked Questions About Deck Cost
How much does it cost to build a 12×16 deck?
A 12×16 deck (192 sq ft) costs $2,880 to $6,720 in pressure-treated wood or $4,800 to $10,560 in composite, professionally installed in 2026. The wide range within each material reflects railing system choice (wood railing is far less expensive than composite or aluminum), stairs, permit fees, and regional labor rates. A basic treated wood deck without premium railing sits at the low end; a composite deck with aluminum railing sits at the high end.
Does a deck increase home value?
According to Remodeling magazine’s Cost vs Value report, a wood deck addition returns approximately 65 to 75 percent of its cost in increased home value, and a composite deck returns 60 to 70 percent. Decks in markets where outdoor living is especially valued (Pacific Northwest, Sunbelt, suburban Northeast) may return higher percentages. The deck also improves the home’s sale speed and buyer appeal, which has value beyond the appraised increase.
Do I need a permit to build a deck?
Most US jurisdictions require a permit for decks that are: attached to the house, elevated more than 30 inches above grade, or over a certain square footage (varies by municipality, often 200 sq ft). Permit requirements exist because decks are structural additions that must meet code specifications for footing depth, beam sizing, joist spacing, and railing height and strength. Always check with your local building department before starting construction; unpermitted decks create serious complications at resale.
How long does a new deck last?
Pressure-treated pine decking lasts 15 to 25 years with regular maintenance (cleaning and staining every 2 to 3 years). Cedar lasts 20 to 30 years with similar maintenance. Composite decking lasts 25 to 40 years with annual cleaning and no staining required. The framing (joists, beams, posts) of pressure-treated lumber lasts 30 to 40 years regardless of surface material because it is protected from weather by the decking surface above. The decking surface typically requires replacement before the framing.
How much does composite decking cost versus wood?
Composite decking material costs $8 to $22 per sq ft versus $3 to $12 for pressure-treated or cedar. Installed, composite runs $25 to $55 per sq ft versus $15 to $38 for wood. Composite costs significantly more upfront but eliminates the $400 to $800 every 2 to 3 years in stain, cleaner, and labor for wood maintenance. Over 20 years, composite and wood often come to within 15 to 25 percent of each other in total cost when maintenance is factored in. Our composite vs wood comparison guide covers the 20-year cost analysis in detail.
What size deck do I need?
Industry guidance suggests planning for 25 to 35 square feet of deck space per person for comfortable seating and movement. A deck for 6 people needs 150 to 210 sq ft (approximately 12×14 to 12×18). A dining area for 8 people needs a 12×12 minimum for the table and chairs, plus circulation space. If you plan to add a grill station, planters, or a hot tub, add 50 to 100 sq ft per feature. Most homeowners who build a deck say they wish it had been larger; going one size up at initial build is far less expensive than adding on later.
What is the best wood for a deck?
Pressure-treated pine is the most common and least expensive deck wood, widely available throughout the US and durable when properly maintained. Cedar is naturally rot-resistant and more attractive, making it the premium wood choice in markets where it is locally available (Pacific Northwest, northern tier). Redwood is the premium West Coast option with excellent natural durability. Hardwoods like ipe (Brazilian walnut) are extremely dense, virtually impervious to rot, and can last 50 years with annual oiling, but they cost significantly more and require specialized cutting equipment due to their hardness.
How long does it take to build a deck?
A professional crew of 2 to 3 carpenters builds a standard 200 sq ft deck in 2 to 4 days. Complex decks with multiple levels, built-in features, or curved railings take 5 to 8 days. A DIY project for the same 200 sq ft deck typically takes 4 to 8 weekend days spread over 3 to 4 weekends, allowing time for concrete footings to cure, permits to be inspected, and weather delays. Budget 2 weekend days just for footings and framing before any surface decking begins.
Related Calculators and Guides
For deck construction standards and permit requirements, the International Residential Code (IRC) Chapter 5 and the Deck Construction Guide provide structural requirements, and your local building department is the authoritative source for permit thresholds and inspection requirements in your municipality.