Composite vs Wood Decking — 25-Year Comparison
The complete cost-of-ownership comparison: pressure-treated wood vs composite vs PVC over a 25-year horizon, including the break-even year math for every common product line.
The biggest decision in any deck build is also the most argued about: should you go composite or stick with pressure-treated wood? Composite costs 2-3× more upfront, but it eliminates ~$0.55/sqft/year in stain and seal cost — and PT decks typically need surface-board replacement at year 15-18. Run the math over 25 years and the answer flips: mid-tier composite usually wins by year 10-14, and premium composite stays even further ahead. This guide walks through the math with real product prices, real maintenance schedules, and the brand-by-brand break-even years for the 10 most-popular composite lines.
Year-zero pricing — the upfront gap
On a 16×20 deck (320 sqft), national-average installed pricing in 2026:
| Material | $/sqft installed | 320 sqft total | Premium vs PT |
|---|---|---|---|
| PT pine 5/4×6 | $25-40 | $8,000-12,800 | — |
| Cedar 5/4×6 | $35-55 | $11,200-17,600 | +40% |
| Trex Enhance Basics | $45-65 | $14,400-20,800 | +80% |
| Trex Transcend | $60-85 | $19,200-27,200 | +140% |
| TimberTech AZEK Vintage | $80-110 | $25,600-35,200 | +220% |
| Ipe (tropical hardwood) | $90-140 | $28,800-44,800 | +260% |
The upfront premium for composite is real — anywhere from 80% to 220% over PT. The case for composite has to be made over the long term, not at the contractor signing.
Annual maintenance — where PT lumber bleeds
PT pine needs to be cleaned + brightened + stained or sealed every 2-3 years. Costs per year on a 320 sqft deck:
- Wood cleaner / brightener: $24-36 (1 gal kit)
- Stain (semi-transparent, mid-quality): 3 gallons × $45 = $135 every 3 years = $45/yr amortized
- Brushes / pads / drop cloths: $25 every cycle = $8/yr amortized
- Labor (DIY, 8 hours per cycle every 3 years): your weekend
- Total materials: ~$0.55/sqft/yr · $176/yr on a 320 sqft deck
Composite needs annual cleaning only — soft brush + mild detergent + garden hose. ~$15/yr in cleaner. That's $0.05/sqft/yr or $16/yr on the same deck. Composite's maintenance is 10× cheaper than PT's.
Lifespan — when do you replace?
Manufacturer warranties tell you what THEY warrant; real-world lifespan is usually a few years longer if maintained, shorter if neglected. Realistic 25-year horizons:
| Material | Manufacturer warranty | Real-world lifespan (well-maintained) | Surface replacement at |
|---|---|---|---|
| PT pine 5/4×6 | 1-yr lumber, 30-yr treatment | 15-25 years (boards) | Year 15-18 typical |
| Cedar 5/4×6 | Limited 5-yr | 20-30 years | Year 20-25 |
| Trex Transcend | 25-yr structural + fade | 25-35 years | Rarely; cap may need re-staining |
| TimberTech AZEK Vintage | 50-yr structural, 30-yr fade | 30-50 years | Almost never (PVC) |
| Ipe | — | 40-75 years | Almost never (dense) |
25-year total cost of ownership
On a 320 sqft deck, summing year-zero install + 25 years of maintenance + a typical PT board replacement at year 18 (surface only, $20/sqft = $6,400):
| Material | Year-0 install | 25-yr maintenance | Replacement | 25-yr TCO |
|---|---|---|---|---|
| PT pine | $10,400 | $4,400 | $6,400 | $21,200 |
| Cedar | $14,400 | $4,400 | $0 (long-life) | $18,800 |
| Trex Enhance | $17,600 | $400 | $0 | $18,000 |
| Trex Transcend | $23,200 | $400 | $0 | $23,600 |
| TimberTech AZEK Vintage | $30,400 | $320 | $0 | $30,720 |
| Ipe | $36,800 | $2,800 (oil) | $0 | $39,600 |
Mid-tier composite (Trex Enhance) basically ties cedar at year 25, and BOTH come in cheaper than PT despite the higher upfront cost — because PT's stain budget + replacement at year 18 stack up. Premium composite (Transcend, AZEK Vintage) is more expensive 25-year TCO than PT, but you also get the no-maintenance lifestyle and the look of hardwood.
Break-even year by product
The 'break-even year' is when cumulative composite cost first crosses below cumulative PT cost. For a 320 sqft deck in the South region (0.92× labor), assuming PT replacement at year 18:
| Composite line | Break-even year | TCO advantage at year 25 |
|---|---|---|
| Veranda Armorguard (cheapest) | Year 8 | +$4,800 |
| Trex Enhance Basics | Year 9 | +$3,600 |
| Fiberon Good Life | Year 10 | +$2,800 |
| Trex Enhance Naturals | Year 11 | +$1,900 |
| TimberTech EDGE Prime+ | Year 12 | +$1,200 |
| Trex Select | Year 13 | +$600 |
| Trex Transcend | Year 17 | Even |
| TimberTech AZEK Vintage | Year 22 | −$2,400 (premium pays for aesthetics) |
| Deckorators Voyage | Year 18 | Even |
| Ipe | Never | Premium for the look + 50-yr life |
Value-tier composites (Veranda, Trex Enhance Basics, Fiberon Good Life) break even by year 10 — the math works for almost any homeowner. Premium tiers don't break even on dollars-only TCO; you're paying for aesthetics and zero-maintenance lifestyle, not for cost savings.
Heat performance — the hidden composite trade-off
Composite gets HOT in direct sun. Surface temps on a 90°F day, dark colors:
- PT pine (any color): 120-140°F (wood radiates absorbed heat)
- Light-color composite (Trex Toasted Sand, Foggy Wharf): 130-145°F
- Dark composite (Trex Lava Rock, AZEK Dark Hickory): 160-175°F
- Trex Lineage heat-mitigation cap (same dark color): 130-150°F (20-30°F cooler)
- Mineral-core composite (Deckorators): runs ~10°F cooler than wood-flour composite at same color
- PVC (TimberTech AZEK, Wolf Serenity): runs ~10°F cooler at same color
Environmental impact
PT lumber: harvested from sustainably-managed pine plantations (Sustainable Forestry Initiative certified for most US-grown PT). Treatment uses ACQ or copper azole — toxic to fish/aquatic life if leached, though modern PT lumber leaches minimally compared to pre-2003 CCA-treated lumber.
Composite: 95% recycled content for Trex (reclaimed wood fiber + post-consumer plastic film). TimberTech / Fiberon similar. PVC composites use virgin polymer with low recycled content. End-of-life: composite isn't recyclable in most municipal streams; goes to landfill. PVC similarly.
Tropical hardwoods (Ipe, Cumaru): often FSC-certified now but historically associated with rainforest deforestation. Verify chain-of-custody before buying.
Decision framework
Pick PT if: you have time to maintain (annual stain), you're staying ≤10 years (don't need 25-yr TCO), you have a tight budget, or you want a traditional wood look.
Pick mid composite (Trex Enhance, Fiberon Good Life): you want 25-yr life with low maintenance, you're staying long-term (10+ years), and you can afford 80% premium upfront.
Pick premium composite or PVC (Trex Transcend, AZEK Vintage): you want hardwood look without hardwood maintenance, premium aesthetic is non-negotiable, and you live in extreme climate (Phoenix sun, Maine snow).
Pick tropical hardwood (Ipe): you want 50-yr life, premium aesthetic, and you can budget for annual oil maintenance + the hardest-on-tools install in residential construction.
Frequently asked questions
Is composite decking worth the extra cost?
For most 25-year homeowners, yes — value-tier composites (Trex Enhance Basics, Fiberon Good Life, Veranda) break even with PT around year 8-10 due to PT's stain costs + surface replacement at year 18. Premium composites (Transcend, AZEK Vintage) don't break even on dollars but you're buying aesthetics and zero-maintenance lifestyle.
How long does composite decking actually last?
Manufacturer warranty: 25-50 years depending on line. Real-world: 25-35 years for capped composite, 30-50 years for capped PVC. The cap layer (the textured outer shell) is what wears; the core can last decades longer if the cap is intact.
Does composite decking get hot?
Dark composite measures 160-175°F at the surface in full 90°F sun — uncomfortable barefoot. Light colors stay under 145°F. Heat-mitigation tech (Trex Lineage, Deckorators mineral-core, all PVC) runs 20-30°F cooler at the same color. Pick a Heat-3 color in hot climates.
Can I install composite over my old PT framing?
Sometimes. The framing must meet the composite manufacturer's joist-spacing requirement (16″ o.c. parallel, 12″ o.c. diagonal), be free of rot, and be flashed properly. Most composites also recommend joist tape over the top of every joist before installing the new boards. Verify framing condition before signing a re-deck contract.
What's the cheapest composite brand?
Veranda Armorguard at Home Depot ($45-50/sqft installed) and Trex Enhance Basics ($45-55/sqft) are the cheapest brand-name composites. Both have 25-yr warranties and decent palettes (4-6 colors). Save $8-15/sqft vs Trex Enhance Naturals or Fiberon Good Life.
What's the best composite for hot climates?
Trex Transcend Lineage (heat-mitigation cap), TimberTech AZEK (PVC, runs ~10°F cooler), or Deckorators Voyage (mineral-core, 35% lighter and runs cooler). All three have engineering specifically for hot-sun environments.
Can I stain composite?
No. Composite has a polymer cap that stain can't penetrate — it'll bead, peel, and look terrible within months. If your composite has faded, the manufacturer often has a paint product specifically formulated for cap restoration (Trex's RetroFit + Renew system, similar from competitors). For a deeper restore, replace the surface boards.
Is PVC the same as composite?
No. Composite is wood fiber + plastic (Trex, Fiberon, MoistureShield, Veranda). PVC is 100% polymer (TimberTech AZEK, Wolf Serenity). PVC weighs less, runs cooler, doesn't absorb water at all, and typically has longer structural warranty. PVC is more expensive upfront. The line is mostly marketing — both will last 25+ years if installed correctly.
What about wood-plastic-composite vs capped composite?
All current Trex / TimberTech / Fiberon / Deckorators boards are CAPPED composite — the wood-flour core is sealed in a polymer cap. Uncapped composite was the standard pre-2010 and is almost extinct now (you'll only see it in extremely cheap big-box stores). Always buy capped.
Is Ipe really better than composite?
Ipe is denser, harder, longer-lasting (40-75 years), and looks like hardwood because it IS hardwood. It's also harder to install (predrilling required), more expensive ($90-140/sqft installed), and needs annual oil maintenance to keep its color (untreated Ipe weathers to grey). Premium composite is easier to live with; Ipe is the choice if you want a 50-year deck and don't mind the maintenance.