Composite decking has been the go-to alternative to wood for the better part of two decades, and two brands dominate the conversation: Trex, the company that essentially invented composite decking in 1996, and TimberTech, which has pushed hard into fully synthetic PVC decking alongside its own composite lines. We're a top-tier certified installer of both, and we install a lot of each brand every year. This article is about what actually separates them — not a sales pitch for one over the other.
Composite vs. PVC: The Core Difference
Before comparing brands, it's worth being clear on the underlying materials, because "composite decking" isn't one single thing.
Composite decking is a blend of wood fiber and polymer (recycled plastic). Both Trex and most of TimberTech's product lines are built this way. Because there's organic wood content in the core, composite boards need some kind of protective outer layer, or "cap," to keep moisture from reaching that wood fiber.
PVC decking — TimberTech's Advanced PVC line is the most widely available example — is made entirely from synthetic polymer, with zero wood content anywhere in the board. There's no organic material to hold moisture in the first place, which is why PVC decking tends to lead the pack on long-term moisture resistance, especially in installations near pools, docks, or anywhere standing water is a regular concern. Trex offers a PVC option as well, but availability is limited to select regions, while TimberTech's PVC line is sold nationwide.
How the Two Brands Cap Their Boards
This is the detail that matters most once a deck's been down for a few years, and it's where the two brands genuinely diverge.
Most current TimberTech composite lines use a four-sided cap — top, both edges, and the underside, including inside the grooves — sealing the wood-fiber core off from moisture on every face. Trex's composite lines, including its higher-end Transcend collection, use a three-sided cap, leaving the underside of the board uncapped. Trex's reasoning is that an open underside lets a board vent moisture downward if any gets in, which can work well on a raised deck with good airflow underneath. TimberTech's position is that fully sealing every surface, including the underside, is the more reliable way to keep moisture out in the first place, rather than trying to manage it once it's already inside the board.
Neither approach is a defect — both companies engineered around a real design trade-off. TimberTech's four-sided approach seals every surface up front; Trex's three-sided approach is built to vent moisture back out if it gets in, which depends on the deck having enough airflow underneath to do its job. Which one matters more for a given project comes down to the specific site — clearance underneath, drainage, and how much direct exposure the deck gets.
Heat Performance
Texas summers are hard on any decking material, and surface temperature is a real, practical concern for anyone walking barefoot across a deck in July. TimberTech's PVC lines are engineered to reflect more solar heat than standard composite, and independent testing has shown surface temperatures running meaningfully cooler — up by up to 30°F cooler in some comparisons — than typical composite decking, Trex included. If a deck sits in full sun most of the day, that's not a small detail.
Style and Color Range
Both brands have invested heavily in making composite decking look less like plastic and more like real wood, and both do it well. TimberTech's advanced color technology and grain styling are generally considered to offer a broader range of finishes and more realistic wood-look texture across their collections, including options that mimic exotic hardwoods like ipe and mahogany. Trex's lineup runs from its entry-level Enhance line up through Transcend and Signature at the premium end, with a somewhat narrower but well-established color palette. Style is genuinely subjective — we'd encourage anyone choosing between the two to look at physical samples in person rather than relying on photos, since finish and color read very differently outdoors in Texas sunlight than they do on a screen.
Scratch and Wear Resistance
This is one place Trex holds a real edge. Trex's premium Transcend line is well regarded for scratch resistance, and composite boards in general tend to resist surface scuffing better than TimberTech's standard composite lines. TimberTech's Advanced PVC narrows that gap considerably, since a PVC cap resists scuffing better than a wood-fiber composite cap regardless of brand — worth factoring in if you have large dogs or expect heavy furniture traffic.
Cost and Value
Both brands price across a range of tiers, and pricing within each brand varies by collection, board profile, and finish. TimberTech's composite lines are competitively priced against Trex's comparable tiers, while TimberTech's Advanced PVC line sits at the premium end of the market — the added cost reflects the moisture and heat performance advantages of a fully synthetic board. Rather than comparing brands purely on price, we'd encourage focusing on which collection's performance and look best fit the project, since that's usually a better predictor of long-term satisfaction than the sticker price alone.
Choosing Between the Two
We're certified to install both brands at the highest level, and both are excellent products — the right choice really does come down to the specifics of your project rather than a default answer. A few questions worth thinking through:
Where is the deck, and how much direct sun and moisture exposure will it see? A deck near a pool, over a low-clearance crawl space, or in constant Texas sun will weigh moisture resistance and heat performance more heavily. A well-ventilated, shaded deck has more flexibility.
What's the budget? Both brands offer a range of tiers and price points; we can walk you through comparable options in each once we know your target range.
What look are you after? Bring both sets of samples outside and look at them in actual Texas sunlight before deciding — finish and color read very differently outdoors than they do on a screen or in a showroom.
Do you have pets or heavy foot traffic? Scratch resistance varies by tier within both brands, and it's worth asking us directly about the specific collections you're considering.
We'll walk through all of this with you and give you a straight recommendation based on your actual priorities — not a default answer.
The Bottom Line
Both brands will give you a durable, low-maintenance deck that will outlast pressure-treated wood by a wide margin. The right choice comes down to your budget, your color preference, your site conditions, and how much you value specific performance factors like moisture resistance or surface heat. We install both at a top-tier level, and we'll give you a straight answer on which one fits your project.
Trying to decide between TimberTech and Trex for your project? Bring us your priorities — budget, look, or performance — and we'll help you land on the right material, not just a brand.