What is the difference between composite and PVC decking?

Composite (Trex) blends wood fibers with plastic. PVC (AZEK) is 100% synthetic polymer. PVC won't absorb moisture or develop mold, but costs nearly twice as much as composite.

Does AZEK decking get hot in the sun?

AZEK stays cooler than composite decking due to its cellular PVC composition. It reflects more heat, making it more comfortable barefoot on sunny days.

Is Trex or AZEK better for a pool deck?

AZEK is better for pool decks. Its 100% moisture-proof composition won't develop mold or mildew from constant water exposure, and it stays cooler underfoot than composite.

Trex vs AZEK (PVC) wood grain comparison

decking

Trex vs AZEK Decking: Composite vs PVC Comparison (2026)

Prepared by Lumberama's Wood Comparison Team

|Last updated June 2, 2026|Sources & methodology

Trex and AZEK represent two different decking technologies: wood-plastic composite and cellular PVC. Trex dominates the composite market while AZEK leads in premium PVC decking. Understanding the fundamental material differences helps you choose the right product for your climate, budget, and expectations.

Trex

AZEK (PVC)

Key Takeaways

Trex and AZEK represent two different decking technologies: wood-plastic composite and cellular PVC.
Trex dominates the composite market while AZEK leads in premium PVC decking.
Understanding the fundamental material differences helps you choose the right product for your climate, budget, and expectations.
AZEK is the superior product for moisture resistance and durability.
Trex offers better value for most residential applications.

Property	Trex	AZEK (PVC)
Price/Linear Ft	$2.50-$5	$5-$10
Material	Wood-plastic composite	Cellular PVC
Moisture Resistance	Good	Excellent - won't absorb water
Mold/Mildew	Can occur on organic content	Virtually immune
Scratch Resistance	Good	Excellent
Heat Retention	Gets hot in sun	Cooler underfoot
Weight	Heavy	Lighter

Trex

Pros

More affordable, Proven track record, Eco-friendly recycled content, Widest retail availability

Cons

Contains organic wood fiber, Can develop mold in shade, Gets hotter in sun, Heavier boards

AZEK (PVC)

Pros

100% moisture proof, Won't mold or mildew, Cooler underfoot, Superior scratch resistance

Cons

Significantly more expensive, Can feel less like real wood, Thermal expansion, Premium pricing limits adoption

Best Use Cases

Choose Trex for a proven composite deck at a reasonable price point. Choose AZEK for wet climates, pool surrounds, coastal environments, or anywhere moisture resistance is the top priority.

Verdict

AZEK is the superior product for moisture resistance and durability. Trex offers better value for most residential applications. AZEK justifies its premium in wet or coastal environments.