Why Seattle Homeowners Choose Trex

Trex is the most recognized composite decking brand, but the line you pick matters more than the name. Here is why customers choose it, and where it isn't the best fit.

30 YEARS BUILDING DECKS IN THE PACIFIC NORTHWESTDECK EXPERT TIPS:

5 min read

Why Seattle Homeowners Choose Trex: A 30-Year Deck Builder’s Honest Take

The 3-second answer

Why people pick Trex: a clear good-better-best lineup, 25 to 50 year limited residential warranties, 95% recycled content, and a wide color range.
Pick Trex if you want low maintenance, strong scratch resistance, and a lot of color choice. See our composite decking in Seattle page.
Look at PVC instead if the deck sits low, stays wet, or bakes in all-day sun. Compare it in our Trex vs. TimberTech vs. AZEK guide.

Why customers choose Trex

“Most people come to me having already decided on composite,” says our lead builder. “The Trex question is usually which line, not whether.” If you are still weighing wood, start with wood vs. composite decking for the Pacific Northwest. These are the reasons we hear most.

1. A clear lineup. Trex sells its decking in tiers, so you can buy to a budget without guessing what you’re giving up.

Trex lineLimited residential warrantyWhat Trex says about itEnhance25 yearsLightest composite boards Trex makes; entry priceSelect35 yearsMono and multi-tonal colors; slightly thinner boardsTranscend50 yearsHighly resistant to scuffs and scratchesTranscend Lineage50 yearsHeat-mitigating technology; Trex’s coolest deckingSignature50 yearsTrex’s most durable and most scratch-resistant board

Source: Trex decking collections. Warranty terms differ by line and have conditions, so read the current terms at trex.com/warranty before you buy.

2. The tier decides the performance. Heat and scratch resistance are not brand-wide. Trex ties its heat-mitigating technology to Lineage, and it calls Signature its most scratch-resistant board. If you have dogs, kids, or furniture that gets dragged, or a deck that gets full afternoon sun, step up a tier rather than assuming every Trex board behaves the same.

3. Recycled content. Trex states its composite is made from 95% recycled material, reclaimed wood and plastic film. If that matters to your household, it’s a real point in Trex’s favor, and it comes from Trex rather than from us. For how long composite lasts in practice, read how long composite decking will last.

4. Color range. Third-party comparisons commonly credit Trex with the widest color selection and slightly lower entry-level pricing than TimberTech (Standard Companies comparison). Look at samples outside, in your own light, before choosing.

5. Cost you can plan around. Trex says average composite deck materials run $15 to $30 per square foot, excluding Signature. That is a national materials figure, not a Seattle installed price. Your installed cost also covers framing, footings, railings, stairs, and permits. Our breakdown of what deck building in Seattle really costs shows what goes into a quote, and financing options are available.

Where Trex isn’t the best pick

“I’ll tell a customer to skip it when the deck is a foot off the ground in the shade, or beside a pool,” says our lead builder. Low, damp, or constantly wet decks are where all-PVC boards earn their price. Trex also lists a PVC line, Refuge, which it markets as ignition-resistant, so “Trex is composite only” is no longer a safe assumption. Ask for the specific line and compare it to TimberTech’s AZEK. For wet-site detailing, see laying waterproof composite decks.

What matters in Seattle, whichever brand you pick

The frame underneath. Composite is heavy and shows an uneven frame. Level joists and correctly sized footings matter more than the brand on the box. See common deck-building mistakes and how to avoid them.
Fasteners. For a clean, screw-free surface, see our guide to installing Trex with hidden fasteners and Start Clips.
Railings. Railing choice affects both look and code. See deck railing installation in Seattle.
Permits. Check what your city requires before you build. Our King County deck permit guide walks through it, and our Mercer Island post covers one city in detail.
Who installs it. Trex lists TrexPro contractors through its Find a Builder tool and says dealers and TrexPro builders are independently owned. Redrra is a TrexPro Platinum contractor, the top level of Trex’s builder program. Before you hire anyone, use our list of questions to ask a deck builder.

Trex questions homeowners ask

Is Trex worth it for a Seattle deck?
For most homeowners who want low maintenance, yes. Composite doesn’t rot the way wood does, and the higher tiers add scratch and heat performance. It is a poor fit for decks that stay wet and low to the ground, where all-PVC is the safer choice.

What’s the difference between Trex Enhance, Select, Transcend, and Signature?
They are tiers. By Trex’s own listing, Enhance carries a 25-year limited residential warranty, Select 35 years, and Transcend, Lineage, and Signature 50 years. Higher tiers add color depth, scratch resistance, or heat-mitigating technology.

Does a Trex deck get moss in Seattle?
A composite board won’t rot like cedar, but any surface that stays shaded and damp can collect moss or algae. Plan to sweep it and wash it per Trex’s care instructions, and trim back overhanging branches if you can. Our tips on how to protect a deck cover upkeep.

What does a TrexPro Platinum installer mean for my deck?
TrexPro is Trex’s contractor program, with TrexPro, Gold, and Platinum levels that Trex ties to how many Trex decks a contractor builds each year. Redrra is a TrexPro Platinum contractor. Trex says TrexPro contractors can offer its limited labor warranty on registered projects, with the length depending on the contractor’s level, so ask for the exact terms in writing. Trex also notes its builders are independently owned.

Trex or TimberTech: which is better?
It depends on the lines you compare and the site. Trex tends to win on color range and entry price, TimberTech on all-PVC options and moisture performance. We break it down in our Trex vs. TimberTech vs. AZEK guide.

How much does a Trex deck cost in Seattle?
Trex puts average composite materials at $15 to $30 per square foot, but your installed cost also covers framing, footings, railings, stairs, and permits. Prices vary with size, height, and site, so the reliable number comes from an itemized quote for your deck. See what deck building in Seattle really costs, then request a free consultation.

Planning a Trex deck in Seattle or King County?

Redrra builds composite decks across Seattle and King County. Start with our composite deck builders in Seattle page, see our full decking and railing services, or read how to choose the best deck builder in Seattle.

Building outside Seattle? We have local pages for Bellevue, Kirkland, Redmond, Mercer Island, Sammamish, Issaquah, Bothell, Renton and more.

Ready to talk? Book a free design consultation or contact Redrra.

Sources: Trex decking collections · Standard Companies: TimberTech vs. Trex · Become a TrexPro deck builder · What is a TrexPro builder. Brand specs and warranties change; confirm on Trex’s site before buying.

Three things to check:

Cost post: the cost link points to a post whose URL says “2025”. Update that post to 2026 or swap in the 12x12 or 1,000 sq ft cost post.
Links I chose by title only: I couldn’t read the post text, so I picked the common-mistakes, waterproof-composite and protect-a-deck links from their titles. Make sure each one fits where I put it.
Unpublished post: I left out the Bellevue deck-trends post because it isn’t in your sitemap.

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