The two names you’ll hear most often
When a San Diego homeowner starts researching composite decking, two brands come up in almost every conversation: Trex and TimberTech. They’re the dominant players in the composite category nationally, and both have solid dealer networks across San Diego County. Choosing between them - and between product lines within each brand - is where most homeowners get stuck.
The short answer is that both brands build good decks that hold up in San Diego’s climate. The decision comes down to budget, the specific product line, what you want the deck to look like, and which brand your chosen contractor has better sourcing for.
Here’s a straightforward breakdown.
Trex: the brand profile
Trex is the largest composite decking manufacturer in North America and has been in the market longer than most competitors. Their product lines run from entry-level to premium:
Trex Select: The entry-level line. Solid-color boards with a wood-grain texture, single-sided, capped on three sides. Works well for homeowners who want composite durability without paying for premium wood-look aesthetics. This is the value line - appropriate for a budget-conscious project or a utility deck (backyard workspace, around an outbuilding) where appearance is secondary to performance.
Trex Enhance: Mid-range, with better color depth and a variegated wood-grain appearance. Two-sided boards. A step up from Select in visual quality without reaching Transcend pricing. This is where most mainstream Trex installs land in San Diego County.
Trex Transcend: The premium line. Deeply detailed wood grain appearance, the best color range in the Trex family, and 25-year fade and stain warranty on the cap layer. For a visible deck on a higher-end San Diego home, this is the product that’s going to look intentional rather than utilitarian.
Trex uses a composite core with a protective cap layer. The cap on Enhance and Transcend is four-sided (fully encapsulated), which improves moisture resistance at cut ends and hidden surfaces. All Trex boards are made with a significant percentage of recycled material, which some homeowners value.
Trex boards tend to run on the warmer side in direct sun - this is worth considering for west-facing or south-facing decks in inland communities like Santee, El Cajon, or Rancho Bernardo where summer afternoon sun can be intense.
TimberTech: the brand profile
TimberTech (owned by AZEK) offers two distinct product families that sit at very different ends of the market:
TimberTech PRO (composite): The composite line. Comparable positioning to Trex Enhance - a mid-to-upper composite product with good wood-grain appearance and a four-sided cap. Performance and warranty structure are similar to Trex Enhance. This line competes directly with Trex on price per square foot.
TimberTech AZEK (PVC): This is where TimberTech differentiates from Trex in a meaningful way. AZEK boards are all-PVC - no wood fiber content at all. The result is the best moisture resistance in the mainstream decking market. No wood fiber to absorb water, no organic material to support mold growth, and better performance in the most demanding coastal conditions.
AZEK commands a significant price premium over composite options. For a deck within a few blocks of the water in La Jolla, Cardiff, or Coronado, that premium buys meaningful performance advantages. For an inland deck in San Marcos or Lakeside, the difference in real-world performance over Trex Transcend or TimberTech PRO is marginal.
For coastal San Diego applications specifically, the all-PVC construction of AZEK is worth discussing with your contractor. See the coastal decking materials guide for more on how salt air affects different materials.
Price comparison per square foot
Approximate contractor pricing for decking boards (before installation labor):
- Trex Select: $4-$7 per linear foot
- Trex Enhance: $6-$10 per linear foot
- Trex Transcend: $9-$16 per linear foot
- TimberTech PRO: $8-$13 per linear foot
- TimberTech AZEK: $14-$22 per linear foot
These are rough ranges that vary by dealer, product line within each family, and whether you’re a contractor buying in volume. Your installed quote will include these board costs, hidden fasteners, end caps, trim boards, and labor.
Appearance: which looks more like real wood
Both brands have significantly improved their realistic wood-grain appearance over the last five years. Neither product looks like the flat, plastic-feeling composite boards from 15 years ago.
Trex Transcend leads on color variety and the warmth of the grain pattern. TimberTech AZEK has excellent grain depth and a slightly crisper surface texture that some homeowners find more appealing. The honest answer is that this is subjective, and you should get samples of both and look at them in your actual outdoor light - marine layer morning light in Oceanside looks different from full-sun afternoon light in El Cajon.
Both brands offer matching fascia boards, trim boards, and stair treads for a cleaner finished appearance.
Warranty comparison
Trex: 25-year limited fade and stain warranty on Enhance and Transcend. 25-year structural warranty on the board itself.
TimberTech PRO: 25-year fade and stain warranty. 25-year structural warranty.
TimberTech AZEK: 30-year fade and stain warranty. Lifetime structural warranty on the PVC boards.
In practice, board failures under warranty are relatively rare with either brand when the deck is correctly installed with proper ventilation and drainage. The bigger risk is installer error - improper spacing, inadequate drainage, or fastener issues - rather than product failure. Verify that your contractor is familiar with the specific installation requirements for whichever product you choose.
Which brand your contractor knows matters
There’s a practical dimension to this choice that doesn’t show up in spec sheets: installer familiarity. Hidden fastener systems, gapping requirements, and end-cut sealing procedures differ slightly between Trex and TimberTech. A contractor who installs primarily Trex will have the product’s installation quirks dialed in. One who primarily sources TimberTech will be more confident with that product.
Ask your contractor which brand they install most often and why. That often tells you more than the spec comparison.
The decision framework
Choose Trex Transcend if: you want premium composite appearance at a price point below AZEK, you’re mid-county or inland, and your contractor has strong Trex sourcing.
Choose TimberTech AZEK if: you’re within a mile or two of the coast, you want the best moisture resistance available, and you’re prepared to pay the premium for all-PVC construction.
Choose Trex Enhance or TimberTech PRO if: you want a solid mid-range composite product at a sensible price point without paying for the premium visual of Transcend.
For a complete look at composite vs. wood options including pressure-treated and redwood, see the composite vs wood decking guide.
Call (858) 925-5546 to connect with a local deck crew that can get you samples of both brands and a real quote for your project.
Is Trex or TimberTech better for San Diego’s climate?
Both perform well in San Diego. For coastal locations (within 1-2 miles of the water), TimberTech AZEK’s all-PVC construction offers a moisture resistance advantage. For inland locations, Trex Transcend and TimberTech PRO are comparable in real-world performance.
How long do Trex and TimberTech decks last in San Diego?
Both brands carry 25-30 year warranties on fade, stain, and structural integrity of the boards. Real-world decks from both brands regularly perform well beyond 20 years when properly installed and maintained with basic annual cleaning.
Is Trex or TimberTech more expensive?
At comparable product tiers, pricing is similar. TimberTech AZEK (the all-PVC line) is notably more expensive than any composite option including Trex Transcend - expect to pay $14-$22 per linear foot for AZEK versus $9-$16 for Transcend.