According to HomeAdvisor cost data, homeowners typically pay between $15 and $35 per square foot installed for a new deck, putting the total for a common 200-to-500-square-foot project somewhere between $5,000 and $20,000 or more. Material choice, deck height, footings, and regional labor rates are the biggest variables. The sections below break down each cost driver so you can evaluate quotes with confidence.
How Much Does Decking Material Cost Per Square Foot?
Material is usually the largest single line item on a deck estimate, often accounting for 40 to 60 percent of total installed cost. Prices below reflect installed cost -- decking boards, framing lumber, and labor combined -- based on HomeAdvisor and Angi cost data published in 2024.
| Decking Material | Typical Installed Cost (per sq ft) | Lifespan / Maintenance |
|---|---|---|
| Pressure-treated pine | $15 -- $25 | 15 -- 25 years; seal every 1 -- 3 years, stain or repaint periodically |
| Cedar / redwood | $20 -- $35 | 20 -- 30 years; annual sealing recommended, prone to checking if neglected |
| Composite (e.g., Trex, Fiberon) | $25 -- $45 | 25 -- 30+ years; occasional cleaning, no sealing or staining required |
| PVC (e.g., TimberTech AZEK) | $30 -- $50 | 30 -- 50 years; wipe-clean surface, no sealing, color-stable |
| Tropical hardwood (e.g., ipe, cumaru) | $35 -- $60 | 25 -- 40 years; periodic oiling (every 1 -- 2 years) to maintain appearance |
Ranges are estimates based on Angi and HomeAdvisor 2024 national cost data. Actual prices vary by region, material grade, and current lumber-market conditions.
Pressure-Treated Wood
Pressure-treated (PT) pine is the most common starting point for deck framing regardless of the decking surface chosen. As a decking surface, PT boards typically run $2 to $5 per linear foot for material alone, making it the most accessible entry point. Trade-off: it requires regular sealing or staining to reach its rated lifespan, and it will check (develop surface cracks) and gray if left untreated.
Cedar and Redwood
Both species resist insects and decay naturally and produce a warm, attractive surface. Material cost runs higher than PT pine, and both still require periodic sealing. Regional availability affects price significantly -- redwood is more affordable on the West Coast, cedar in the Midwest and Northeast.
Composite Decking
Composite boards combine wood fiber and plastic, producing a surface that resists rot, splintering, and insects without annual sealing. According to Angi cost data, composite decks typically cost $25 to $45 per square foot installed, roughly double the entry cost of PT wood. The trade-off homeowners are weighing is upfront cost against maintenance savings over time.
PVC Decking
100-percent PVC boards contain no wood fiber, making them highly resistant to moisture and insects. They carry some of the longest manufacturer warranties available -- TimberTech AZEK, for example, offers a 50-year warranty on its premium line. Installed costs run $30 to $50 per square foot, per HomeAdvisor data.
Tropical Hardwood
Species such as ipe, cumaru, and tigerwood are exceptionally dense and durable. They present beautifully and can last 25 to 40 years with periodic oiling. Material alone can cost $10 to $25 per square foot before labor, placing total installed cost at the high end of the range. Sourcing from certified sustainable forestry operations (look for FSC certification) is worth verifying given import supply variability.
Lifecycle Cost Over 25 Years
Before ruling out composite or PVC on sticker price alone, add up the cost of sealing, staining, and board replacement over 25 years for a wood deck. Angi estimates that annual wood-deck maintenance runs $250 to $800 per year depending on size. Over two decades, that recurring expense often closes or reverses the gap with higher-upfront materials.
What Factors Drive the Total Price of a New Deck?
Material is only part of the equation. Site conditions, design choices, and structural requirements can swing total project cost by thousands of dollars.
Deck Size
Cost scales roughly with square footage, but not always linearly. Mobilization costs -- hauling materials, setting up equipment, pulling permits -- are relatively fixed, so larger decks tend to have a lower cost-per-square-foot than very small ones. A 100-square-foot deck may cost $22 to $35 per square foot installed, while a 400-square-foot deck of the same material might land closer to $18 to $28, according to Angi cost data.
Ground-Level vs. Elevated Decks
A ground-level or low-to-ground deck (within 30 inches of grade) is the least expensive to build. It requires simpler footings, no guardrails in many jurisdictions, and less labor for framing. An elevated second-story deck attached to the house or spanning significant height requires deeper footings, larger structural members, and guardrails -- typically adding $5 to $15 per square foot over a comparable ground-level design.
Footings and Foundation
Any deck attached to a structure or elevated significantly off grade requires footings -- concrete piers poured below the frost line. Footing depth varies by climate (frost depth in Minnesota can exceed 42 inches; in Atlanta it may be only 12 inches). Footing cost alone typically runs $1,000 to $3,000 for a standard deck, according to HomeAdvisor, with rocky soil, tight site access, or required helical piers pushing that figure higher.
Railings
Guardrails are required by code when a deck surface is 30 inches or more above grade. Rail material choices include pressure-treated wood, composite, aluminum balusters, glass panels, and cable rail systems. Basic wood railings add $20 to $35 per linear foot. Cable or glass rail systems run $60 to $120 per linear foot or more, per Angi data.
Stairs
A single straight run of deck stairs typically costs $400 to $1,000 for materials and labor. Wider stairs, curved landings, or stairs with decorative stringers add cost. Every stair run also typically requires its own footing at the base.
Built-In Features
Built-in benches, planters, pergolas, and outdoor kitchens each add a separate line item. A basic built-in bench runs $200 to $500. A pergola over the deck surface can add $3,000 to $10,000 depending on size and material. These features are worth pricing separately so you can phase them in over time if budget is a constraint.
How Labor and Materials Split on a Deck Project
According to Angi cost data, labor typically represents 40 to 60 percent of total deck construction cost. On a $12,000 composite deck, that is roughly $4,800 to $7,200 in labor. Labor rates vary significantly by region -- a contractor in San Francisco or New York will charge considerably more per hour than one in rural Tennessee.
Structural complexity drives labor hours more than any other factor. A simple ground-level rectangle takes far fewer labor hours per square foot than an elevated L-shaped deck with stairs, multiple railing runs, and built-in seating.
When reviewing a bid, a well-structured estimate will break out materials, labor, permit fees, and any subcontracted work (such as concrete footing pours) as separate line items. For guidance on reading and comparing proposals, see How to Get Accurate Contractor Quotes and How to Read a Contractor Contract Before You Sign.
DIY vs. Hiring a Licensed Contractor
DIY deck building is feasible for homeowners with genuine carpentry experience, but the margin for error is narrower than many people expect.
What DIY realistically saves: Labor typically runs 40 to 60 percent of total project cost, according to Angi. On a $12,000 deck, that is $4,800 to $7,200. That savings is real -- but it is only captured if the work passes inspection.
What DIY risks: Incorrect footing depth (insufficient for local frost line), improper ledger attachment to the house (the single most common cause of deck collapses, per the North American Deck and Railing Association), undersized structural members, and non-code-compliant railing heights can all cause a project to fail inspection. A failed inspection means corrections before the deck can be used legally. In some cases, inspectors require partial teardown to verify framing under completed decking.
When to hire a pro: Elevated decks, second-story decks, decks attached to the house (requiring proper ledger board flashing to prevent water intrusion), and any project that requires a structural engineer's stamp should involve a licensed contractor. For a repeatable process for finding and evaluating deck contractors, see How to Hire a General Contractor: A Step-by-Step Guide.
Permits Are Not Optional for Most Decks
The North American Deck and Railing Association (NADRA) reports that decks attached to the home, elevated above 30 inches, or exceeding a certain square footage -- thresholds vary by municipality -- almost universally require a building permit and a structural inspection. Building without a permit can block your home's sale (unpermitted work must be disclosed), void an insurance claim if the deck causes damage, and create a legal obligation to tear out and redo the work at your expense. Always pull the permit before breaking ground.
What Permits Cover and Why They Matter
A building permit for a deck is not a formality. The inspection process typically covers:
- Footing depth and diameter -- verifying concrete piers reach below local frost depth
- Ledger board attachment -- the connection between the deck and the house is the most structurally critical joint; inspectors verify the hardware schedule and flashing
- Joist sizing and spacing -- confirming structural members meet span tables for the load
- Railing height and baluster spacing -- verifying guardrails meet IRC minimums (typically 36 inches for decks under 30 inches high, 42 inches above that, with balusters spaced so a 4-inch sphere cannot pass through)
Permit costs themselves are relatively modest -- typically $150 to $500 depending on project value and jurisdiction -- and are usually pulled by your contractor as part of the project. Confirm this is included in the bid before signing.
What Contractors Pull vs. What Homeowners Pull
In most states, a licensed contractor pulls permits in their name and carries liability for the work passing inspection. A homeowner pulling their own permit is legal in most jurisdictions but places inspection liability on the homeowner. If a future buyer's lender requires verification that all improvements are permitted and inspected, you will need to produce the permit records.
Lifespan, Maintenance, and Long-Term Cost by Material
The Remodeling Magazine "Cost vs. Value" report tracks the resale value return on deck projects. Wood decks consistently return 50 to 70 percent of installed cost on resale in national averages; composite decks return slightly lower percentages upfront but are increasingly viewed as a premium feature by buyers in markets where outdoor living is valued.
Day-to-day maintenance costs are where the material choice has the most practical impact:
- Pressure-treated wood requires cleaning and sealing every one to three years. Neglected PT decks check, gray, and develop splinters. Board replacement after 15 years is common.
- Cedar and redwood behave similarly but tend to hold their surface texture longer when maintained. Annual sealing is standard practice.
- Composite requires occasional cleaning with soap and water. Most major composite manufacturers explicitly prohibit pressure washing at high PSI, which can damage the surface layer. No sealing, staining, or painting required.
- PVC is the lowest-maintenance surface available -- wipe it down periodically. It does not absorb moisture or harbor mold in the way wood composites can if drainage is poor.
- Tropical hardwood requires periodic oiling (typically every one to two years) to maintain color and prevent checking. Left unfinished, ipe grays naturally but retains structural integrity; many homeowners find the silver-gray finish acceptable.
Get At Least Three Written Quotes
HomeAdvisor and Angi both report that deck project estimates for the same scope can vary by 20 to 40 percent between contractors in the same market. A single quote gives you no reference point. Three or more written, itemized quotes -- breaking out materials, labor, permit fees, and any subwork separately -- give you both a competitive baseline and a clearer picture of where a contractor's pricing is coming from. Never accept a verbal estimate for a project of this scope.
Regardless of material, any deck benefits from keeping drainage clear under and around the structure, ensuring the ledger flashing stays intact and properly sealed, and addressing any loose fasteners or soft boards before they become structural problems. An annual 20-minute walkover to check for these issues is cheap insurance against a larger repair.
Frequently asked questions
How much does a 12x12 deck cost to build?
A 12x12 deck (144 sq ft) typically costs between $2,200 and $5,000 for pressure-treated wood and $4,300 to $7,000 for composite, according to HomeAdvisor cost data. Final price depends on your region, site conditions, and whether you add stairs, railings, or built-in features.
Is it cheaper to build a deck yourself or hire a contractor?
DIY saves 40 to 60 percent on labor but requires carpentry skills, correct permits, and proper footings. A structural mistake on a DIY deck can fail inspection, void your homeowner's insurance, or require a teardown. Most homeowners with limited carpentry experience save more money by hiring a licensed contractor and avoiding costly errors.
Do I need a permit to build a deck?
In most US jurisdictions, yes. Decks attached to the house, elevated more than a few inches, or above a certain square footage threshold require a building permit and a structural inspection. The North American Deck and Railing Association (NADRA) advises homeowners to check local codes before breaking ground. Unpermitted decks can block home sales.
What is the longest-lasting decking material?
PVC and capped composite materials such as Trex Transcend or TimberTech AZEK carry manufacturer warranties of 25 to 50 years and resist rot, insects, and moisture without annual sealing. Tropical hardwoods such as ipe also last decades when maintained, but require periodic oiling. Pressure-treated wood is durable but needs regular sealing to achieve its rated lifespan.
How long does it take to build a deck?
A straightforward ground-level deck typically takes a professional crew two to five days once materials arrive and permits are approved. Elevated decks with complex framing, stairs, and built-in features can take one to two weeks. Permit approval timelines vary by municipality and can add days to weeks to the overall schedule.