Wood vs. Composite Decking: What's Right for a San Antonio Backyard?
The material you choose affects upfront cost, long-term maintenance, appearance over time, and performance in San Antonio's specific climate conditions. Here's an honest, numbers-based breakdown for homeowners in the Bexar County market.
Choosing between wood and composite decking is the single biggest materials decision you'll make for a new San Antonio deck. Both work — but they work differently, and the right answer depends on your budget, how much maintenance you're willing to do, and how you plan to use the space.
The Climate Factor: Why San Antonio Is Different
San Antonio sits in USDA hardiness zone 8b–9a. That means brutal UV exposure from April through October, 100°F+ surface temperatures on exposed decking, humidity spikes during summer storm season, and freeze-thaw cycles in winter. Your deck material needs to handle all of it.
UV is the biggest culprit in material degradation here. Both wood and composite are affected, but in different ways and at different rates.
Pressure-Treated Pine: The Budget Workhorse
Pressure-treated (PT) pine is the most common decking material in San Antonio by volume. It's available at every lumber yard in the city, contractors know how to work with it, and the upfront cost is the lowest of any structural option.
What it costs
- —Material only: $2.50–$4.50 per linear foot for 5/4×6 deck boards
- —Installed: $18–$26 per square foot for a complete deck in San Antonio (2025 pricing)
- —12×16 deck: approximately $3,500–$5,000 in materials; $8,500–$13,000 installed
What you should know
PT pine must be sealed within 90 days of installation and re-sealed every 1–2 years in the San Antonio climate. Without it, boards gray, check (surface crack), and cup. Done right, a PT pine deck can last 15–25 years. Done wrong, you're replacing boards within 5.
Western Red Cedar: Premium Natural Look
Cedar is the step up from PT pine for homeowners who want natural wood aesthetics and better stability. It's naturally rot-resistant due to its oils, holds stain well, and stays cooler underfoot than composites in direct sun.
- —Material only: $4.50–$7.00 per linear foot
- —Installed: $22–$32 per square foot
- —12×16 deck: approximately $5,000–$7,500 in materials; $10,500–$16,000 installed
Cedar still requires annual inspection and resealing every 2–3 years. The tradeoff over PT pine is longer lasting natural beauty and fewer warping issues in humidity swings.
Composite Decking: The Long-Game Option
Composite decking (Trex, TimberTech, Fiberon, and similar brands) is engineered wood fiber and recycled plastic. It doesn't rot, doesn't splinter, and requires essentially no annual maintenance beyond cleaning.
What it costs
- —Good-tier composite (Trex Select, TimberTech Pro): $6–$9 per linear foot
- —Premium composite (Trex Transcend, TimberTech Azek): $10–$16 per linear foot
- —Installed: $28–$45 per square foot depending on tier and layout
- —12×16 deck: $9,500–$19,000 installed depending on composite tier
The San Antonio heat caveat
Composite boards can reach 150°F+ surface temperatures in direct San Antonio sun. This is a real comfort issue for bare feet. Lighter-colored composites run significantly cooler than dark options. Trex and TimberTech have both published surface temperature comparisons by color — ask your contractor for the data before choosing a color.
Rule of thumb: If you plan to keep the deck 10+ years and want near-zero maintenance, composite pays off. If you're budget-constrained or plan to sell in the next 5–7 years, quality PT pine with proper sealing is the practical choice.
Side-by-Side Comparison
- —Upfront cost: Wood wins. PT pine is 30–50% cheaper installed than good composite.
- —Maintenance: Composite wins. Annual sealing required for wood; composite needs only periodic cleaning.
- —Longevity: Composite wins with 25–30 year warranties. Wood at 15–25 years with proper care.
- —Heat performance: Cedar wins. Composite gets very hot in San Antonio sun; cedar stays cooler.
- —Appearance: Tie. Natural wood has unmatched warmth; premium composites have improved significantly.
- —Resale value: Comparable. Both add value; composite may appeal more to buyers who don't want to maintain.
Our Recommendation for San Antonio Homeowners
For most homeowners in Bexar County: if your budget allows $28+ per square foot installed, go with a mid-tier composite like Trex Select or TimberTech Pro. The maintenance savings over 10 years are real, and the warranty is substantial.
If you're building a larger deck on a tighter budget, pressure-treated pine with a quality penetrating oil sealer (not paint or film-forming sealers, which peel) is a sound choice. Budget $150–$200 per year for materials and an afternoon of your time to maintain it.
READY FOR A FREE DECK ESTIMATE IN SAN ANTONIO?
Call us or fill out the form — we respond within 24 hours.