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Decking / TimberTech / Advanced PVC
TimberTech Advanced PVC decking
Advanced PVC has no wood in it at all. No flour, no fibre, nothing organic for water to swell, for mould to feed on, or for a landing ember to find. That is why one of these collections is the strongest fire specification in our decking range — and why it stays roughly thirty degrees cooler underfoot than the composite next to it.
It is also the most expensive decking on our yard. This page tells you when that is worth paying for and when it is not.
Start here
TimberTech states that select Advanced PVC collections carry an Ignition Resistant designation, a Class A Flame Spread Rating and WUI Compliance — as published on timbertech.com and checked by us on 9 August 2026. Several are backed by California State Fire Marshal listings on the state register, which we host on this site so a plan reviewer can verify them independently.
Those designations apply to particular collections rather than to the range as a whole, so tell us the project address and we will confirm which collections are listed for it before you choose a color.
The problem with wood
Wildfire rarely arrives as a wall of flame. It arrives as embers, thousands of them, carried ahead of the front and landing on every horizontal surface. A deck is the largest horizontal surface most homes have, it is attached directly to the structure, and it has gaps between the boards that catch and hold what lands.
Timber decking gives that ember somewhere to go. So does the dry debris in the board gaps. Advanced PVC removes the fuel from the equation entirely — there is no cellulose in the board to ignite, and the polymer is formulated so that surface flame spread stays inside the Class A band on the listed collections.
That is the fire argument. But almost nobody buys a deck because of fire, and the rest of this page is about the reasons they actually do.
Why this material
Composite decking is a blend — wood flour and polymer, wrapped in a protective cap. It is a good product and we sell a lot of it. But the core still contains wood, so the cap has to hold for the life of the deck. Advanced PVC has nothing in it to protect in the first place.
No rot, no mould, no insects
There is no cellulose in the board, so there is nothing for fungus or termites to eat. Cut ends, drilled holes and mitres are as inert as the face.
Roughly 30° cooler underfoot
Cool Touch technology reflects rather than stores heat. On a July afternoon in Riverside that is the difference between a usable deck and a hot one.
Lifetime residential warranty
Verified in the warranty document: lifetime for a residential purchaser, twenty years commercial — and fifty years on fade and stain.
Nothing to sand, stain or seal
No annual maintenance cycle. Soap, water and a brush.
Dimensionally stable when wet
Nothing absorbs, so nothing swells, cups or splits at the fastener after the first wet winter.
The most convincing wood look we stock
Wire-brushed and crosscut grains with multitonal blending — the reason people choose it over composite even where fire is irrelevant.
Every warranty figure on this page was read out of the current TimberTech warranty document, which we host below so you can check it yourself.
Why TimberTech
There is plenty of PVC decking on the market. What separates TimberTech is that its collections have been put through California’s own test protocol and entered on the State Fire Marshal’s register — SFM 12-7A-4A, listed by category as decking for the Wildland Urban Interface.
That distinction matters more than it sounds. A manufacturer can commission an ASTM E84 test and print Class A on a brochure. A state listing is a numbered register entry an inspector can pull up independently. When a plan reviewer asks for evidence, the listing number closes the conversation and the brochure does not.
TimberTech also holds ICC-ES and CCRR code compliance reports covering structural use, which is what a building department asks for once the fire question is settled.
Illustration of a multi-width layout. Vintage and Legacy are the two collections offered in narrow and wide boards as well as standard — most suppliers only carry one width.
The range
Color names below are the current range. The flame spread class on each card is the rating TimberTech publishes for that specific collection (checked 9 August 2026) — not a family-wide claim.
Fire rated — listing Ask our team which fire designations apply to your local code.
Exotic hardwoods, wire-brushed
Vintage Collection®
Wire-brushed finish with multitonal color blending — the closest thing in the range to a sought-after premium hardwood.
CoastlineCypressDark HickoryEnglish WalnutMahoganyWeathered TeakFire rated — listing Ask our team which fire designations apply to your local code.
Crosscut hardwoods
Landmark Collection®
Crosscut cathedral grain with cascading color blending, reading like white oak or walnut.
American WalnutBoardwalkCastle GateFrench White OakFire rated — listing Ask our team which fire designations apply to your local code.
Cathedral grain, solid colors
Harvest+ Collection™
The upgraded Harvest tier — same cathedral grain and solid colors, stronger fire specification.
Timber GrayToasted WheatWUI compliant — listing Ask our team which fire designations apply to your local code.
Cathedral grain, solid colors
Harvest Collection®
Soft, versatile solid colors with an attractive cathedral grain — the most flexible of the three.
BrownstoneKonaSlate GrayChoosing a collection
One detail catches people out, so it is worth a moment. Advanced PVC is often described as Class A across the board, but TimberTech rates each collection individually: Harvest sits at Class B, while Harvest+ is the Class A tier. Worth confirming the collection, not just the range.
Landmark has a finer point. TimberTech publishes it as Class A, and the underlying state listing is written to apply where the attached exterior wall covering is itself non-combustible or ignition-resistant — so if the house has combustible siding, check with us before you submit.
Near a Wildland Urban Interface line? Tell us before you choose a color. Vintage is the unconditional answer, and we would much rather sort it out with you at the counter than have you find out later.
Fire safety
Select TimberTech collections carry an Ignition Resistant designation, a Class A Flame Spread Rating, and WUI (Wildland-Urban Interface) Compliance — making them a smart choice for California fire zones. Ask our team which products meet your local fire code requirements.
Advanced PVC and fire zones: several Advanced PVC collections carry a Class A flame spread rating and WUI compliance, and some also carry an Ignition Resistant designation. Ratings vary by collection, so ask our team which ones apply to your project.
Fire designations shown are TimberTech’s, as published on timbertech.com and checked 9 August 2026. Because a rating applies to a specific collection rather than to the brand as a whole, tell us the project address before you choose a color and we will confirm what is listed for it.
Illustration. Cool Touch is the feature customers notice first — roughly thirty degrees cooler than a comparable capped composite in direct sun.
Where it goes
We sell into everything from the coast to the low desert. Advanced PVC is the collection we reach for when the environment is going to attack the deck rather than just weather it.
Coastal — salt air and damp
Salt spray and near-permanent damp are what kill timber and stress a composite’s cap. With no organic core there is nothing for moisture to reach, so cut ends at a stair nose or a mitre behave the same as the middle of the board.
Inland and desert — heat and UV
At 115°F a dark composite becomes unusable barefoot. Cool Touch is the direct answer, and the fifty-year fade and stain warranty is written for exactly this kind of UV load.
Sizes
Standard boards run 5.5″ across every collection. Vintage and Legacy also come in a narrow 3.5″ and a wide 7.25″, which is what makes a genuine multi-width deck possible. Mixing widths is a design move most suppliers cannot offer, because they only stock one.
| Width | Available in | What it is for |
|---|---|---|
| 3.5″ narrow | Vintage, Legacy | Borders, picture-frame edges, and the tighter lines in a multi-width field |
| 5.5″ standard | Every collection | The default board. Most decks are entirely this. |
| 7.25″ wide | Vintage, Legacy | Makes a large deck read as fewer, broader planks — closer to a milled hardwood floor |
If you want a true multi-width deck, Vintage is the Advanced PVC collection that supports it — and it is also the unconditional Class A one.
The paperwork
Hosted here on our own site, so you are not chasing a manufacturer portal at submission time.
Warranty
Advanced PVC fade & stain warranty
50 years on Harvest, Harvest+, Landmark and Vintage; 35 on Solstice.
Next step
Bring the address or the plan set. We will tell you which collection clears your fire requirement, what it costs installed, and what is on the yard right now. Everything on this page is in stock or available through our own supply.
For contractors
If you install TimberTech for a living, get enrolled. Pro Rewards gets you points on what you already buy, co-op marketing support, lead generation through TimberTech’s own find-a-pro tool, and access to extended warranty tiers you cannot offer your customer otherwise.
We enroll contractors at the counter. Ask any branch and we will walk you through it — it takes about ten minutes.
Please note: fire ratings, warranty terms and technical specifications on this page are TimberTech’s own published statements about its products, provided here as a courtesy. Specifications change, so please refer to TimberTech’s documentation and website for current information, and talk to our team about what your local fire code requires for your project.