PVC Deck vs Wood Deck: 20-Year Cost Comparison

Key Takeaways

• PVC (all-polymer) decking costs $40–55/sq ft installed in 2026 — the most expensive mainstream decking material.
• PVC is 100% synthetic: zero rotting, zero warping, zero staining, and no wood fiber to feed mold — the lowest maintenance surface you can buy.
• Over 20 years, PVC’s total cost often beats wood because wood’s maintenance bills ($400–$900 every 2–3 years) compound relentlessly.
• PVC’s weaknesses: high heat in direct sun, higher upfront cost, and hollow-board noise underfoot on some lines.

Introduction

If you want a deck that looks new for 25 years and never needs a paintbrush, PVC is the answer — and you will pay for it. In 2026, PVC decking runs $40–55 per sq ft installed, about $16,000–$22,000 for a 400 sq ft deck. That is 2–2.5x a pressure-treated wood deck and $2–7 per sq ft more than composite.

This guide compares PVC and wood on a 20-year total-cost basis, because that is the horizon that actually matters. We cover why PVC costs what it does, where it saves you money, and where it can disappoint.

2026 Price Comparison

• PVC (Azek, Wolf, Versatex): $9–14/sq ft material; $40–55/sq ft installed.
• Pressure-treated pine: $4–7/sq ft material; $15–25/sq ft installed.
• Cedar: $5–12/sq ft material; $25–40/sq ft installed.
• Composite (capped): $9–12/sq ft material; $38–48/sq ft installed.

Why PVC Costs More Than Composite

Composite is roughly 50% wood fiber; PVC is 100% virgin or recycled polymer. That means PVC needs no wood fiber sourcing, no cap-layer process — it is extruded as a solid (or foamed) polymer board with color molded all the way through. The material cost is higher per pound, and the manufacturing line is dedicated polymer extrusion. The payoff: PVC cannot absorb water, so it cannot rot, delaminate, or feed mold; color goes through the entire board, so scratches are far less visible than on capped composite.

The 20-Year Cost Math

Wood’s lifecycle bill is the killer. A 400 sq ft pressure-treated deck needs cleaning, brightening, and staining every 2–3 years at $400–$900 — that is $6,000–$9,000 over 20 years, plus $300–$1,000 in board replacements and sanding. Add the initial $7,000–$10,000 build and wood totals $13,000–$20,000 over two decades. PVC’s upfront $16,000–$22,000 plus near-zero maintenance ($0–$200/year cleaning) lands at $16,000–$26,000 — a surprisingly narrow gap, and PVC usually wins if you value your time at all. The tiebreaker is your horizon: under 10 years, wood is cheaper; over 20, PVC is the better investment.

Where PVC Can Disappoint

• Heat: dark PVC in full sun can exceed 150°F — genuinely uncomfortable barefoot; choose light colors.
• Expansion: PVC expands and contracts more than composite; it needs proper gapping and slotted fastener holes — installation mistakes cause buckling.
• Noise: some hollow-core PVC lines sound drum-like underfoot.
• Cost of mistakes: a miscut $60 board hurts; a buckled field of them hurts more.

Regional Differences

PVC is strongest in wet, cold climates — the Northeast, Pacific Northwest, and Great Lakes region — where wood decks rot fastest and ice-melt chemicals eat finishes. In the Southwest and South, PVC’s heat retention is a real drawback and composite or wood is often preferred for sun-exposed decks. Installation labor runs $12–18/sq ft, at the high end of decking labor, because of tighter tolerances.

PVC on the Resale Market

PVC decks test well with buyers who value durability, but appraisers rarely give extra credit for the material itself — you will not dollar-for-dollar recover the premium over composite on a short ownership horizon. The financial case for PVC is personal, not speculative: it pays off through decades of zero maintenance and zero board replacement, not through a higher sale price. Buy it because you plan to use it, not because you plan to sell it.

DIY vs. Hiring a Contractor

PVC is the least DIY-forgiving decking material: expansion gaps, fastener torque, and slotting rules are strict, and most warranties require documented contractor installation. If you DIY anyway, budget $1,000–$1,500 for the right tools (fine-tooth carbide blades, router for slotting, jig for clips) and read the 50-page installation guide twice. For most homeowners, paying for professional installation is cheaper than a warranty-voiding mistake.

Money-Saving Tips

• Choose light colors — they cost the same, stay cooler, and hide dust better.
• Buy in the off-season — PVC prices are steady year-round, but dealers discount slow-moving colors 15–25%.
• Use PVC only for the surface — pressure-treated framing keeps structure costs down.
• Get a 25-year written warranty — it is transferable and adds resale value.