PVC vs Composite Decking: Cost & Which Wins 2026

Neither wins outright — they fail differently, and that is what should decide it. Cellular PVC has no wood in it at all, so there is nothing for mould, rot or stains to feed on, and it is the lightest board of the two. That makes it the right answer beside a pool, within a few miles of saltwater, or anywhere the deck stays damp. Capped composite has a wood-fibre core wrapped in a plastic cap, which gives it more weight underfoot and a grain that reads more like timber, at $8 to $18 per square foot for boards against $12 to $22 for PVC. For a normal backyard deck in a temperate climate, composite is the better value and most buyers cannot tell the difference in year ten. For a deck that lives in water, PVC is worth the premium — not because it looks better, but because the thing that would eventually fail is not present in the board.

About 40 to 50% more at the board, and less than that once the whole project is counted. Boards run $12 to $22 per square foot for cellular PVC against $8 to $18 for capped composite. Installed — including labour but not the framing, footings and railing — the comparison is $45 to $70 per square foot for PVC against $35 to $60 for composite. On a 320 square foot deck, the board line alone is roughly $3,800 to $7,000 in PVC against $2,600 to $5,800 in composite, a difference of about $1,200. Note that the ranges overlap: a premium composite line costs more than an entry PVC one, so a blanket statement that PVC is the more expensive material is only true tier for tier. Compare the specific lines you are choosing between rather than the categories.

Yes. Every synthetic deck board absorbs and holds heat, and on a still summer afternoon in full sun both PVC and composite can be uncomfortable barefoot. The variable that matters most is not the material but the colour: a light board runs dramatically cooler than a dark one in the same line, and that single choice will do more for comfort than any brand decision. Some newer lines in both families add heat-mitigating cap technology, which helps at the margin and is usually restricted to a handful of colours. What is not true is the common claim that PVC is automatically cooler — it depends on the specific product and its colour. If barefoot comfort is a priority, choose light, plan for shade at the hours you actually use the deck, and treat any heat-mitigation claim as a tiebreaker rather than a solution.

Both last decades with nothing more than soap-and-water cleaning, and both carry 25 to 50 year or lifetime fade-and-stain warranties, so the honest answer is that the difference is narrower than the marketing suggests. PVC has a genuine edge in pure moisture resistance because there is no wood in the board for mould or rot to work on, which shows up over time in wet, shaded or coastal locations rather than on a dry sunny deck. The more useful point is what actually retires a deck of either material: the framing underneath. That is still pressure-treated lumber with a 15 to 25 year service life in ground-contact conditions, still fastened with hardware that corrodes if it is the wrong grade, and still attached to the house by a ledger that is the most common structural failure on any deck. The board almost never goes first.

Yes, and this is the clearest case for choosing PVC. A pool deck deals with constant splashing, standing water, sunscreen and chlorine, and it is walked on barefoot — conditions that stress the one weakness of capped composite, which is that its protection lives in the cap while its core is wood fibre. Cellular PVC has no core to protect, so a scratch or a cut edge does not expose anything absorbent. It is also the lighter board, which matters on the raised framing pool decks often need. Composite works around pools too and plenty of them are built that way; it simply asks more of the installation, particularly sealed cut ends and good drainage. Whichever you choose, the framing rules do not change: same IRC span table, same footing depth below the local frost line, same corrosion-rated hardware.