Texas sun is harder on a deck than northern winters are. UV, heat and the wet-dry swing of our clay all shorten the life of the wrong material.
Pressure-treated pine
The cheapest and most common. Structurally sound and widely available, but it cups, checks and splinters under our UV unless it is sealed regularly. Regularly means roughly annually, not when you remember.
If the budget is tight it is a legitimate choice, provided you accept the maintenance. Skipping the sealing schedule is what produces the grey splintered decks you see across the region.
Cedar and hardwoods
Cedar resists rot naturally, stays cooler underfoot than composite and looks excellent. It is softer, so it dents, and it still needs sealing to keep colour rather than weathering grey.
Tropical hardwoods like ipe are dense, extremely durable and handle UV better than anything else in wood. They are expensive, hard to work with, and still benefit from oiling to retain colour. For a deck you intend to keep for decades, the maths can work.
Composite and PVC
No sealing, no splinters, consistent appearance. The catch in Texas is heat: darker composites get very hot in direct sun, hot enough to be unpleasant barefoot. Lighter colours and shaded locations mitigate it.
Quality varies enormously. Cheaper composites fade and can sag between joists in our heat, so joist spacing matters more than with wood. Buy on warranty and on how the product performs in high-heat installations, not on the showroom sample.
What matters as much as the boards
The substructure. Ground contact on expansive clay means proper footings that account for soil movement, and adequate ventilation underneath so moisture does not sit against the framing.
Orientation again decides comfort: a west-facing deck with no cover is unusable on summer afternoons regardless of material. Pair the deck with shade if it faces the afternoon sun, and check that drainage under and around it moves water away from the house.
Framing and footings on clay
The boards get the attention and the substructure determines the lifespan. On blackland clay, footings have to reach below the zone of seasonal movement or the deck will move with the soil and pull away from the house.
Ledger attachment to the house is where most structural failures originate. It needs proper flashing, correct fasteners and, critically, not to be attached to brick veneer alone. Freestanding framing avoids the issue entirely at some extra cost.
Joist spacing matters more with composite than with wood, since composite sags between supports in heat. Follow the manufacturer spacing for high-temperature installations rather than the general figure, which is usually tighter than standard wood framing.
Ventilation and moisture
Air has to move under a deck. A deck built too close to grade with no airflow traps moisture against the framing, and in our humidity that rots wood and grows mould on any material.
Keep vegetation clear underneath, maintain a gap at the perimeter, and slope the ground beneath so water drains away rather than pooling. A drainage system under an elevated deck creates dry usable space below, which is worth the cost on a two-storey installation.
Board gaps matter too. Boards butted tight trap debris and water; correct spacing lets both fall through and lets the boards move with humidity swings without buckling.
Finishing and realistic maintenance
Wood decks need cleaning and resealing, and in Texas UV that means roughly annually rather than every few years. Skipping two seasons is how a deck goes grey and splintery.
Oil-based penetrating finishes generally outperform film-forming ones here, because film finishes crack and peel under our temperature swings and then need stripping rather than recoating.
Composite needs washing but no sealing, which is its main appeal. It still stains from grease and gets scratched, and unlike wood you cannot sand a scratch out. Decide honestly whether you will do annual maintenance; if not, pay more upfront for the material that does not require it.
Common questions we get about this
Three come up almost every time.
Can I do this myself? Usually part of it. The diagnostic work and the finishing details are where experience shows, and the preparation underneath is where shortcuts cost the most. Most homeowners who do it themselves succeed on the visible work and struggle with base preparation, drainage and timing.
When is the best time? In Central Texas, almost always autumn. Soil is still warm, air has cooled, and anything planted or installed has months to settle before summer stress arrives. Spring works but races the heat.
What does it cost? Any number quoted without seeing the property is a guess, because our two soils, the slope and the access change the work substantially within a few miles. What we can say is that the invisible preparation is where the real cost sits, and where the cheapest bid has usually economized.