A deck is one of the smartest ways to get usable outdoor space on a Central Texas lot, especially when the ground slopes or sits too high above the yard for a patio. The hard part is not deciding whether you want one. It is choosing between wood and composite, and then swallowing the price gap between them. Our sun and heat are tough on building materials, so the choice matters more here than it would up north.
We build both, and we get called to replace plenty of decks that were built with the wrong material or on a frame that never stood a chance. Below is the straight answer on what a deck actually costs in Austin, which material holds up to our climate, and how to decide what fits your yard and your budget.
How much does a deck cost in Austin?
Most professionally built decks in the Austin area run roughly $30 to $60 per square foot installed. Pressure-treated wood sits at the low end. Composite sits at the high end. So a common 300-square-foot deck lands somewhere around $9,000 to $18,000 depending on the material and the site.
The square-foot price is only a starting point. The things that actually move a deck quote up or down are:
- Height off the ground. A low deck a step off the yard is cheap. A raised deck that needs tall posts, deeper footings, and railings costs much more.
- Stairs and railings. Every run of stairs and every foot of code-compliant railing adds labor and material.
- The slope and the soil. On a hillside lot or in our caliche and limestone, setting footings takes more work than driving piers into soft ground.
- Tearing out an old deck. Demolition and hauling add to the total before a single new board goes down.
Because of all that, two decks the same size can quote thousands of dollars apart. The honest move is to get a real number for your yard. Our wood deck installation and composite deck installation pages walk through what each build includes.
Wood or composite: which is cheaper up front, and over 10 years?
Up front, wood wins. Pressure-treated pine is the cheapest deck you can build, cedar costs more, and composite usually runs 30 to 50 percent above pressure-treated pine to install. If the only number you look at is the bid, wood is the budget answer.
Over time the math changes. A wood deck in Central Texas needs real upkeep to survive: cleaning, the occasional sanding, and a fresh seal or stain every year or two. Skip it and the boards gray out, crack, and splinter fast in our sun. Composite asks for almost none of that. You wash it and you are done.
Add the years up and the gap narrows or flips:
- Pressure-treated wood commonly shows serious wear in 10 to 15 years here, and reaching the longer end of its life takes diligent maintenance.
- Composite typically lasts 25 to 50 years and carries a long manufacturer warranty, with no money spent on stain or sealant along the way.
The simple rule we give clients: if you plan to sell in a few years, a well-built wood deck can be the smarter spend. If this is your forever yard, composite usually costs less once you count the upkeep you will not be doing.
Which holds up better in the Texas sun?
Composite holds up better to our climate, and a worn-out wood deck is the project we get called to replace most. Central Texas runs hot. We sit in USDA hardiness zone 8b to 9a, and a deck here bakes under months of direct sun. That sun fades and cracks wood, our humidity swings and sudden downpours rot any untreated lumber sitting near the ground, and termites are always looking for a way in. Composite shrugs off rot, insects, and splinters, and it never needs sealing.
Wood is not out of the running. It costs less, cedar in particular looks beautiful, and some homeowners simply want real wood underfoot. You are just signing up for the maintenance that keeps it alive.
Does composite get too hot to walk on?
It can. Darker composite boards in full afternoon sun get hot enough to notice on bare feet, which surprises people who chose composite to avoid hassle. The fixes are easy if you plan for them: pick lighter board colors, choose one of the newer capped lines built to run cooler, and put the deck where it gets some shade. A pergola, an existing oak canopy, or just orienting the deck away from the worst western sun all help. This is the same shade-first thinking behind every outdoor living space we design for Texas summers. Real wood runs a touch cooler in the sun, but you trade that comfort for the upkeep.
Building around oaks and drainage
Many Austin yards come with mature live oaks that are worth protecting and impossible to replace quickly. We design footings around root zones instead of through them, and we follow the Texas A&M Forest Service oak wilt guidance: avoid pruning oaks from February through June, and paint every oak cut right away no matter the season. We also grade and handle drainage under and around the deck so water sheds away from the house instead of pooling against the foundation, which is a real concern on our clay soils after a hard rain.
Trex, TimberTech, cedar, or pressure-treated pine: which decking is right here?
Each material has a place. Here is how we think about them for Austin yards:
- Pressure-treated pine. The budget choice. Widely available and strong, but it needs regular sealing and will not look new for long without work. Good for a tight budget or a deck you do not plan to keep for decades.
- Cedar. Naturally resistant to rot and insects, with a warm look that is hard to beat. It still needs sealing to hold its color in our sun, and it costs more than pine.
- Composite (Trex, TimberTech, and similar). Made from wood fibers blended with recycled plastic and wrapped in a protective cap. It resists fading, stains, and insects, comes in many colors, and carries the longest warranties. It costs the most and can run warm in full sun.
For most of our clients we build composite for the low upkeep, or cedar when they want the real thing and do not mind maintaining it. If you want something built to your exact layout and rail style, that is what our custom deck construction work is for.
What goes into building a deck here, and can I DIY it?
The part you do not see is the part that decides whether a deck lasts. In our caliche, limestone, and expansive clay, the footings make or break the build. We set piers to stable depth so the deck does not heave or settle when the soil swells and shrinks through the seasons. From there it is proper framing, the right joist spacing (composite needs joists closer together than wood, usually every 12 to 16 inches), flashing where the deck meets the house so water cannot get behind the siding, and railings that meet code.
Can you DIY it? A small, low, freestanding platform near the ground is a reasonable weekend project for a handy homeowner. Anything attached to the house, raised off the ground, or stepping down a slope is a different animal. Those need engineered footings, structural know-how, and a permit, and that is where a do-it-yourself deck tends to go wrong. Sloped lots usually call for a multi-level deck, which is exactly the kind of build we handle on the hillside lots across Westlake Hills and Lakeway, the same terrain we cover in our guide to resort-style backyards.
Do you need a permit to build a deck in Austin?
Usually, yes. The City of Austin only exempts a deck from a building permit when it is no more than 200 square feet, no more than 30 inches above grade at any point, not attached to the house, not used as an exit, and not in a flood hazard area. You can read the full list on the city's work exempt from building permits page. Most real backyard decks are bigger than that, higher than that, or attached to the home, which means they need a permit, a site plan, and structural details reviewed by Development Services.
On top of city rules, many Austin-area neighborhoods run their own HOA design review. Circle C, Steiner Ranch, and plenty of communities around Bee Cave will want to approve the look before you build. We handle the permitting and the paperwork as part of our design-build process, so the project moves instead of stalling.
Is composite decking worth it, and can you convert an old wood deck?
Composite is worth it when this is your long-term home, you do not want to spend weekends sealing boards, the deck sits in full sun, and you value a long warranty. It is less worth it when the budget is tight, you expect to sell soon, or you genuinely want the feel of natural wood.
If you already have a wood deck, you do not always have to start over. When the existing frame is sound, we can sometimes reuse it and re-deck with composite, which cuts the cost of the upgrade. The catch is that older frames in our climate are often rotted at the base or built with joists spaced too far apart for composite, so we inspect the structure first and tell you honestly what it can carry. We also wire in low-voltage deck and step lighting while the boards are off, since that is the easy time to do it.
One more honest option: on a flat lot, a flagstone or paver patio sometimes does the job better and cheaper than a deck. We will tell you when that is the case.
Ready to build a deck that lasts in Austin?
The right deck comes down to matching the material to how long you will keep the home, how much sun the spot gets, and how much upkeep you actually want to do. We design and build wood and composite decks across Austin and the Hill Country, sized to your lot, your slope, and your budget.
Take a look at our recent projects to see how we handle real Central Texas yards, then request a free quote. We will walk your property, talk through wood versus composite for your exact spot, and design a deck you will still be glad you built in fifteen years.
