Round Rock built out fast, and most of its backyards came with the same thing: a concrete slab the width of a back door and a lot of flat St. Augustine behind it. A deck is how you turn that into somewhere you sit. Deck building is a large share of what we do in Williamson County, and Round Rock lots have their own quirks worth knowing about.
Decks we build in Round Rock
- Cedar decks. Western Red Cedar handles our heat, takes stain beautifully, and stays cooler underfoot than composite in August. Roughly $50 to $75 per square foot installed.
- Pressure-treated pine decks. The value build. Same framing standards, same hardware, lower material cost. Roughly $30 to $45 per square foot installed.
- Composite and PVC decks. If you never want to stain again. Roughly $60 to $100 per square foot installed.
- Low-profile and ground-level decks. The right answer on Round Rock's flatter lots, where a raised deck would sit awkwardly against the slab and leave an odd gap underneath.
- Covered decks and patio covers. Framed as one structure so the posts carry the roof properly instead of being bolted on afterwards.
- Deck tear-out and replacement. A lot of Round Rock's builder decks are now twenty years old and failing at the ledger and posts, not at the boards you can see.
Want numbers before you call? The 2026 deck cost guide has the full material-by-material breakdown.
What's different about building a deck in Round Rock
The lots are flat, which changes the design
Round Rock does not fall away the way Cedar Park and the Hill Country do. That is mostly good news, because you are not paying for tall posts and engineered footings. It does mean a standard raised deck often looks wrong: it sits eighteen inches proud of a flat yard with a dark gap under it that collects leaves. On these lots we usually build low-profile, stepping down to grade, which reads as part of the yard instead of a platform dropped into it. Our deck design ideas guide shows low-profile and covered options that suit flat lots.
Blackland clay
Much of Round Rock sits on expansive clay that swells when it rains and shrinks when it doesn't. That movement is exactly what cracks slabs and heaves shallow footings. Footing depth is the part of the quote nobody asks about and the part that decides whether your deck is still flat in ten years.
Drainage on a flat yard
Flat is easy to build on and hard to drain. When Round Rock gets a real storm, water that used to sheet across the yard now has a deck in the way. We look at where water goes before setting a post, because a deck that dams the drainage path turns the yard behind it into a bog and rots the framing from underneath.
HOAs
Nearly every Round Rock subdivision built since the 90s has an active architectural committee, and several have specific rules about height, materials, and how close a structure can sit to the rear setback. We prepare and submit the full ARC packet as part of the project, and pull City of Round Rock permits when the build requires them.
What a deck costs in Round Rock
Round Rock lots are flatter than Cedar Park's, which is good news for your budget. A ground-level deck on flat ground is the cheapest real outdoor surface you can build, and most of Round Rock qualifies.
| Deck | Typical range, installed |
|---|---|
| Ground-level pressure-treated, 200 to 300 sq ft | $7,500 to $13,000 |
| Pressure-treated with railing and stairs | $10,500 to $26,000 |
| Cedar deck, same footprint | $14,000 to $30,000 |
| Composite or PVC, same footprint | $18,000 to $38,000 |
| Raised deck to meet a back door threshold | add 20 to 40 percent |
| Deck and patio roof framed together | $26,000 to $54,000 |
| Deck repair, board and rail replacement | $1,800 to $7,000 |
Round Rock installed pricing for 2026, including footings, permit and the HOA packet. Railing footage and stair count move a flat-lot deck more than square footage does.
Ground-level or raised, on a Round Rock lot
On a flat lot a ground-level deck is almost always the better value, and most of Round Rock is flat. Under 30 inches you do not need code guardrail, the posts are shorter, there is meaningfully less lumber in the whole structure, and nothing blocks the view of the yard. The money you save on railing buys a better decking material or a bigger footprint.
Raised decks earn their cost when the back door sits well above grade, which happens in the newer sections and in parts of Brushy Creek where the lots step. Once you are over 30 inches you need code-compliant guardrail on every exposed edge, and the stair run becomes a real line item rather than an afterthought.
What you should not skip on a ground-level deck is real footings and airflow underneath. A low deck that cannot breathe rots from the bottom up, and because you cannot see under it, you will not notice until a board gives. This is the single most common failure we are called out to on builder-grade Round Rock decks.
Choosing the decking material
Pressure-treated pine is what most Round Rock decks get and it is genuinely the right call for most budgets, not a compromise. Framing standards and hardware are identical to what goes under a cedar deck. Plan on re-sealing every two or three years.
Cedar costs roughly half again as much, takes stain beautifully, and stays noticeably cooler underfoot in August.
Composite and PVC never need staining, which is the entire argument and a good one. The caution in Round Rock is canopy. A lot of these subdivisions are young and the trees have not filled in, and a dark composite board on an unshaded lot gets genuinely too hot to stand on barefoot in July. Go light on the colour, or plan a patio roof over it. We would rather say that before you spend the money.
Permits and HOA review in Round Rock
A deck over 30 inches above grade needs a permit, and so does a deck attached to the house in most cases. That goes through the City of Round Rock inside the city limits, and Williamson County just outside. We work out which applies to your address before quoting.
HOA architectural review is the usual delay. Behrens Ranch, Forest Creek, Teravista, Paloma Lake and Stone Oaks all review exterior structures, and several have rules on railing style, stain colour and rear setback. Review commonly runs two to four weeks. We prepare and submit the packet the day you sign, so it runs alongside permitting rather than after it.
Repair, or replace?
A lot of Round Rock's housing stock is at the age where the original builder deck is failing, and repair is frequently the honest answer.
Repair works when the framing underneath is sound and it is the boards, railing or stairs that have gone. Decking takes all the weather and is the cheapest component to replace. New boards on good framing buys another fifteen years for a fraction of a rebuild.
Replace when the framing is the problem: soft joists, a ledger that was never flashed, posts rotted at the collar, or hardware that was not rated for treated lumber and has corroded. None of that is patchable.
We will tell you which one you are looking at at the estimate, and we would rather sell you the repair when the repair is right.
Round Rock neighborhoods we build in
We build decks across Teravista, Forest Creek, Behrens Ranch, Paloma Lake, Mayfield Ranch, Sonoma, Round Rock Ranch, Chandler Creek, Stone Oak, and Greenlawn, plus the rest of Williamson County. Not sure if your street is in range? Just call. It probably is.
HOA in your Round Rock subdivision? Nearly all of them require architectural approval before a deck goes in. We prepare the full submission packet so you don’t have to decode it yourself.
Start my Round Rock deckWhat a deck build actually involves
- Free on-site estimate. John walks the yard, measures, and talks through materials and layout. You get a written, line-itemed quote.
- HOA and permits. We prepare the ARC submission and pull permits where the build needs them.
- Footings and framing. Proper depth for our clay, correct ledger flashing, and hardware rated for treated lumber.
- Decking, railings, and finish. Boards, railings, stairs, skirting, and stain or sealer.
- Cleanup and walkthrough. We haul everything off and walk the finished deck with you before we call it done.
Most Round Rock deck builds run one to three weeks depending on size, cover, and whether we're tearing out an old structure first. You get progress photos by text every day it's worked on.
Why Round Rock homeowners pick us
- Call or text anytime. John calls back the same day.
- Free, on-site, line-itemed estimates. Materials, labor, dump fees, permits, all spelled out before you sign.
- Daily progress photos by text. You always know where your project stands.
- Written warranty on every project.
- 5.0 stars across 25 Google reviews. Read them.
Looking for more than a deck in Round Rock? See everything we build in town on our Round Rock contractor page: roofing, cedar fences, pergolas, siding, and hardscape.
Ready for a free deck quote in Round Rock? Call or text (512) 587-3914, or send a few photos of your yard and John will tell you what he sees.
Get my free deck quoteRound Rock deck questions, answered
Who builds decks in Round Rock, TX?
JB Contracting ATX builds decks throughout Round Rock, Brushy Creek and the surrounding Williamson County communities, including Behrens Ranch, Forest Creek, Teravista, Paloma Lake and Stone Oaks. We are family owned, licensed and insured, and rated 5.0 on Google. Owner John Bernard walks every estimate himself.
Do I need a permit for a deck in Round Rock?
Usually yes if it is more than 30 inches above grade or attached to the house. Inside the city limits that goes through the City of Round Rock, and homes just outside fall under Williamson County. We determine which applies, pull the permit, and prepare the HOA architectural packet as part of the job. A low ground-level deck on a flat lot often does not need one, which is another point in its favour.
Is a ground-level deck better than a raised one?
On a flat lot, usually yes, and most of Round Rock is flat. Under 30 inches you skip code guardrail entirely, the posts are shorter, there is less lumber in the build, and nothing blocks the view of the yard. What you must not skip is proper footings and airflow underneath, because a low deck that cannot breathe rots from below and you will not see it coming.
What is the best decking material for Round Rock?
Pressure-treated pine for most budgets, cedar if you want the look and do not mind re-sealing every few years, composite if you never want to stain again. The Round Rock caution is shade. These subdivisions are young and the canopy has not filled in, so dark composite on an unshaded lot gets too hot to walk on barefoot in July. Choose a light colour or plan a roof over it.
How much does a deck cost in Round Rock, TX?
Pressure-treated pine runs about $30 to $45 per square foot installed in Round Rock, cedar $50 to $75, and composite or PVC $60 to $100. Height off grade, stairs, railing choice, and site access move the number more than square footage alone, so we measure on site and hand you a line-itemed quote.
Do you build decks across all of Round Rock?
Yes. We build across Teravista, Forest Creek, Behrens Ranch, Paloma Lake, Mayfield Ranch, Sonoma, Round Rock Ranch, Chandler Creek and the rest of Williamson County. Same crew and same standards wherever in Round Rock your home is.
How long does a deck build in Round Rock take?
Most builds take one to three weeks on site depending on size, whether there's a cover or pergola, and whether we're tearing out an old deck first. From signing, work usually starts within 2 to 4 weeks depending on HOA approval and material lead times. We text progress photos every day it's worked on.
Do you handle Round Rock HOA approval and permits?
Yes. Nearly every Round Rock subdivision requires architectural review before a deck goes in, and several have specific height and setback rules. We prepare and submit the full ARC packet as part of the project, and pull City of Round Rock permits when the build requires them.
My Round Rock yard is completely flat. What kind of deck works?
Usually a low-profile deck that steps down to grade rather than a raised platform. On a flat lot a standard raised deck sits proud of the yard with a dark gap underneath that collects leaves and looks like an afterthought. Built low and stepped, it reads as part of the yard. The other thing we plan for on flat lots is drainage, because a deck sitting in the path water used to take will turn the ground behind it into a bog.
Not sure your old deck needs replacing? Our guide to deck repair cost in Austin explains what repairs cost and how to tell a repair from a rebuild.
