The 30-Second Verdict
Both are excellent composite decking brands for Florida. TimberTech (AZEK) edges out Trex in heat resistance (critical in Florida summers) and uses full PVC cap rather than composite core on premium lines, making it more moisture-resistant. Trex offers better value at mid-grade and has a larger dealer network. For South Florida or pool decks, TimberTech AZEK premium lines are worth the premium.
Head-to-Head Breakdown
Trex
Pros
- Largest composite decking market share
- Wide dealer/installer network in FL
- Competitive pricing at mid-grade
- 25-year fade and stain warranty
Cons
- Core can absorb moisture at cut ends if not sealed
- Can get hot in direct FL sun
- Less premium capping than TimberTech top lines
- Limited color options in budget lines
TimberTech
Pros
- AZEK line is 100% PVC (most moisture resistant)
- Better heat dissipation on premium boards
- Longer warranty (30 years on AZEK line)
- Superior mold resistance
Cons
- Higher cost, especially AZEK line
- Fewer installers familiar with product
- Can require specific fastening systems
- Premium pricing may not be necessary inland
Side-by-Side Comparison
| Trex | TimberTech | |
|---|---|---|
| Material | Wood/plastic composite | Composite (Terrain/Reserve) or 100% PVC (AZEK) |
| Surface Temp (FL summer) | Moderate — can get hot | AZEK CoolDeck tech — cooler surface |
| Moisture Resistance | Good (capped composite) | Excellent (AZEK full PVC) |
| Warranty | 25-year fade/stain | 30-year (AZEK) / 25-year (composite lines) |
| Cost (installed) | $35–$55/sq ft | $45–$70/sq ft (AZEK line) |
| Mold Resistance | Good | Excellent (AZEK) |
| Best FL Use Case | Inland, shaded, moderate budget | Pool deck, coastal, maximum durability |
Frequently Asked Questions
Does composite decking get too hot in Florida?
Standard composite decking can reach 150–165°F in direct Florida sun — uncomfortable for bare feet. TimberTech AZEK's CoolDeck technology reduces surface temps by 30+ degrees versus standard composites. Lighter colors and covered/shaded areas also help significantly.
Is composite or wood decking better for Florida?
Composite decking is generally the better long-term value in Florida. Wood decking requires annual sealing/staining, is susceptible to rot and termite damage, and checks/warps in Florida's humidity cycles. Composite's higher upfront cost is offset by virtually no maintenance and 25+ year lifespan.
What composite decking do Florida pool deck builders recommend?
For pool decks in Florida, TimberTech AZEK or Trex Transcend are the most commonly specified products. Both offer PVC-cap surfaces that resist pool chemicals, UV, and moisture at the higher end. Trex Transcend is often 10–15% less expensive than comparable AZEK products.