Composite Deck Cost in 2026: What You Pay by Brand and Tier

Real composite deck pricing for 2026: $35 to $70 per square foot installed by brand. Trex, Fiberon, TimberTech AZEK board pricing.

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Jenny He

Updated on:

May 14, 2026

A typical composite deck installed in 2026 costs between $35 and $70 per square foot installed, depending on which composite product line you choose. For a standard 300-square-foot raised deck, that's $10,500 to $21,000 all-in including framing, railings, and a basic stair run.

Board-only material costs (if you're buying the boards and hiring a labor-only installer) range from $3 to $9 per linear foot of decking board across the major brands. The board pricing alone for a 300-square-foot deck (which uses 600 to 700 linear feet of boards) lands between $1,800 and $6,300 in materials before framing or labor.

What that per-square-foot number leaves out: how composite brands actually differ in price and lifespan, where the money goes beyond the boards, and whether a premium brand is worth 2x the cost of an entry-level one.

Composite deck cost in 2026: $35 to $80 per square foot installed

Composite decking installed in 2026 runs $35 to $70 per square foot in real-world dealer surveys, and the 2025 Zonda Cost vs Value Report puts the national average for a 16-by-20-foot composite deck addition at $25,096 (about $78 per square foot), with 88.5% recouped at resale. For a standard 300-square-foot deck, expect $10,500 to $21,000 all-in including framing, railings, and a basic stair run.

The range is wide because "composite" is a category that spans entry-level wood-plastic with a 25-year warranty up to cellular PVC with a limited-lifetime product warranty. Which tier you pick determines where in that range you land.

Warranty length tells you what tier you're really buying

The most useful way to pick a composite product is by warranty length, not per-foot price. The warranty maps directly to the material's expected service life and the manufacturer's confidence in it. The full hierarchy:

Trex (per Trex's product line page):

• Trex Enhance (entry-level): 25-year limited residential warranty. Wood-plastic composite with cap. Best for budgets that need durability over wood but can accept moderate fade resistance.
• Trex Select (mid-tier): 35-year limited residential warranty. Replaced the discontinued Accents line; the longer-warranty entry.
• Trex Transcend and Transcend Lineage (premium): 50-year limited residential warranty. Lineage adds heat-mitigating surface technology for hot climates.
• Trex Signature (luxury): 50-year limited residential warranty. Top-of-line WPC for scratch resistance and aesthetics.
• Trex Refuge (cellular PVC): 50-year limited residential warranty. Fire-resistant PVC alternative; limited regional availability.

TimberTech (per TimberTech's warranty information):

• TimberTech PRO and EDGE Composite collections (entry through mid-tier WPC): 25 to 30-year limited product warranty plus 25 to 30-year fade-and-stain warranty.
• TimberTech AZEK Vintage, Harvest, Landmark (Advanced PVC): Limited Lifetime Product Warranty plus 50-Year Fade & Stain Limited Warranty. The strongest warranty package in mass-market residential decking. The trade-off is higher upfront cost.

Fiberon: similar tier structure (entry-level Good Life through premium Concordia). Warranty terms vary by line; verify against current Fiberon product documentation.

Where each tier lands in the $35-$70/sqft installed range:

• Entry capped WPC (Trex Enhance, TimberTech PRO base, Fiberon Good Life): $35-$45/sqft installed
• Mid-tier capped WPC (Trex Select, Fiberon Concordia): $45-$55/sqft installed
• Premium WPC (Trex Transcend, Trex Signature): $55-$65/sqft installed
• Cellular PVC (TimberTech AZEK lines, Trex Refuge): $60-$70+/sqft installed
• Zonda Cost vs Value national average (mix): ~$78/sqft

If you'll own the home for 15+ years and want to minimize maintenance, the longer-warranty tiers usually justify their premium. If your horizon is shorter or your fade-resistance tolerance is higher, entry-tier composite is the value pick.

Why composite isn't one product

A national-average "$78 per square foot" is a useful ceiling but isn't enough to budget a real project. Four things matter beyond the headline:

• WPC vs cellular PVC. Trex Enhance is wood-plastic composite with a hard plastic cap. AZEK Vintage is capped cellular PVC, no wood fiber at all. The PVC lines cost more upfront and carry stronger warranties because there's no wood fiber to swell, splinter, or degrade.
• Capped vs uncapped. All current Trex and TimberTech residential lines are capped (the hard plastic shell that resists fading and staining). Trex's older uncapped product (Accents) was discontinued; Trex's current entry tier is the capped Trex Enhance. Uncapped composite still exists in some older Fiberon and off-brand lines but is increasingly rare.
• Cell structure. Solid composite is heaviest, strongest, and most expensive. Scalloped (grooved bottom) composite is lighter and cheaper but slightly less stiff. Hollow composite is the lightest and cheapest but isn't permitted by some building codes.
• Fastener system. Grooved-edge boards use hidden clip systems that look clean but add hardware cost. Square-edge boards screw through the face, with cheaper hardware but visible fasteners.

Cost by deck size and design

Different deck designs use different amounts of board and framing for the same footprint.

• Simple rectangle: cheapest layout, minimal waste, fastest install.
• Multi-level (split): meaningfully more than single-level same square footage. Each level needs its own framing, railings, and stair connection.
• Curved or rounded: notably more in labor and material waste. Composite boards can be bent on jobsite using heat tools but the process is slow.
• Wrap-around or L-shape: more than rectangle. More cuts, more corners.
• Octagonal or geometric: highest cost adder. Specialized cuts, more waste, longer install.

For first-time deck buyers, a rectangle or L-shape gives the best price-per-functionality. Save curves and geometric designs for projects where the aesthetic is worth the premium.

What else moves the quote

Beyond brand-tier and design, three variables drive the budget.

Deck height. Ground-level decks (under 30 inches) skip railings, permits, and stairs. Raised decks (30 inches to 8 feet) add all three. Elevated decks need structural engineering.

Railings. Composite railings are the baseline. Cable, glass, or aluminum-with-tempered-glass railing upgrades each carry their own premium.

Stairs. Stair runs are priced by number of steps and code-compliant railings. Multi-step runs add significantly to a raised-deck quote.

Maintenance: what composite needs and doesn't

Composite decks need almost nothing. The honest list:

• Wash once or twice per year with deck cleaner and a soft brush. Removes pollen, mildew, food spills.
• Inspect fasteners annually. Hidden clip systems can loosen slightly in the first year as framing settles.
• Replace damaged boards if a branch or grill drop cracks one (rare). Modular plank replacement is one of composite's advantages.
• No staining, sealing, oiling, or painting. Capped composite holds color via the protective shell. Painting or staining can void Trex's fade-and-stain warranty.

The trade-off most homeowners misjudge: "no maintenance" doesn't mean "no aging." Capped composite can fade slightly over many years in intense sun. Premium capped WPC and cellular PVC (TimberTech AZEK, Trex Transcend) hold up better than entry-level capped composite in sun-belt climates. The lifespan-vs-cost trade-off favors stepping up to mid-tier or premium composite in CA, TX, AZ, and FL.

DIY vs hiring a pro

Composite DIY is harder than wood. Mistakes are visible permanently (you can't sand or refinish composite), so first-time installers commonly:

• Mis-space hidden-fastener clips, leaving uneven gaps that won't drain
• Cut boards without supporting both ends, causing cracks at the cut line
• Skip the joist tape, leading to early framing rot under the deck
• Under-size joists for the span (composite is heavier than some wood species per board)

DIY works for:

• Replacing wood decking with composite on a structurally-sound frame (how to build a deck is realistic here)
• Ground-level decks under 200 sqft (no railings, no stairs)
• Freestanding low platforms (not attached to the house)

DIY usually doesn't work for:

• Anything attached to the house (ledger-board structural is critical; this is where deck collapses happen)
• Raised or elevated decks (railings, stairs, code-compliant footings)
• Hidden-fastener systems (precise spacing, visible mistakes are permanent)

Common composite deck questions

How much does a composite deck cost in 2026? $35 to $70 per square foot installed in real-world dealer surveys. The 2025 Zonda Cost vs Value Report puts the national average at $25,096 for a 16-by-20-foot composite deck (about $78/sqft). For a 300-square-foot deck, expect $10,500 to $21,000.

Is composite cheaper than wood? At install, no. Wood deck addition national average is $18,263 (Zonda 2025), composite is $25,096, a 27% premium. Over 20 years composite typically narrows or closes the gap because it needs no restaining and lasts longer.

Which composite brand is best? For warranty length, TimberTech AZEK (Vintage, Harvest, Landmark) carries the strongest package, limited-lifetime product plus 50-year fade-and-stain. For mid-tier value, Trex Select (35-year) or Trex Transcend (50-year) are well-positioned. Skip uncapped composite lines.

How long does composite decking last? Warranty length is the most concrete proxy for expected service life. Trex Enhance carries 25 years, Trex Select 35 years, Trex Transcend and Signature 50 years. TimberTech AZEK carries a limited-lifetime product warranty. Climate, substrate prep, and installation quality are the biggest real-world longevity factors.

Does a composite deck add value to my home? Yes. Per the 2025 Zonda Cost vs Value Report, a composite deck addition recoups 88.5% of cost at resale on the national average. Wood recoups more on percentage (94.9%) because it's cheaper to build for similar usable square footage, but both project types outperform most interior remodels for resale ROI.

Do I need a permit for a composite deck? Permitting is based on size and height, not material. Almost always required for anything raised over 30 inches, attached to the house, or above 200 sqft. Permit cost varies widely by jurisdiction.

How do I get an accurate quote? Get three quotes from licensed deck installation contractors. Ask each to itemize decking boards (by brand and tier), framing, railings, stairs, footings, and permits. Reject any quote that bundles everything into a single "deck install" line. Match the brand and tier across quotes for fair comparison.

Bottom line

Pick the warranty length you actually need, then let that pick the product tier. If you'll own the home long-term and want minimal maintenance, the lifetime-warranty cellular PVC tier (TimberTech AZEK, Trex Refuge) earns its premium. For shorter ownership horizons or moderate-climate locations, mid-tier WPC (Trex Select, Trex Transcend) gives 35-50 year warranties at a more accessible price. Entry-level capped composite (Trex Enhance, Fiberon Good Life) is the value pick when budget matters most and you'll accept a 25-year warranty.