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Metal Buildings San Antonio is a custom metal building contractor, not a kit dealer. We build on your site and pour the slab, handling the whole project under one contract: shops and garages, barns and ag buildings, commercial and warehouse space, and carports and RV covers. Every build is turnkey, engineered, licensed and insured, and quoted free on site across San Antonio and the Texas Hill Country.
The difference shows up in the details a shipped kit ignores. Our red-iron frames are engineered for San Antonio's wind load, our slabs are built for the expansive clay and limestone around here, and we sort out whether your property needs a city permit or sits on county land that does not. From a backyard shop to a ranch barn, we build it on your site, start to finish.
We build it on your site and pour the slab. You do not coordinate a kit, a slab crew and an erector yourself.
One contractor runs the whole job: site prep, slab, frame, roof, walls and doors. You are not stuck coordinating a concrete crew, a kit supplier and an erector who all point fingers.
San Antonio and the Hill Country see 105 to 115 mph design wind speeds. Our red-iron buildings are engineered to meet them, which a generic mail-order kit is not built to do.
We pour the concrete slab as part of your build, so the foundation and the steel are designed to work together. No separate slab contractor, no gap in who is responsible.
Your building goes up on your property, welded and fastened in place, not dropped off as a pile of parts to assemble. You get a finished building, not a project.
Custom shops and garages, barns and ag buildings, commercial and warehouse space, and carports and RV covers, each built turnkey with the slab.

Shops, garages and workshops are the bread and butter of what we build. Whether it is a two-bay garage for the trucks and the mower, a 40x60 work shop with tall eaves for a lift, or a hobby space with a slab you can actually keep clean, we design the width, length and clear height around what you plan to do in it. Roll-up doors, walk doors, windows, insulation, a lean-to for covered storage, it all gets specced before the steel is ordered.
Because these go up on red-iron frames, you get wide clear spans with no interior posts in the way, which is the whole point of a metal shop over a stick-built one. We pour the slab, set the frame, hang the panels and finish the openings, so you end up with a dried-in, powered-ready building and one number to call if anything needs attention.

Out in the Hill Country and the counties around San Antonio, a metal barn earns its keep: hay storage, a horse or livestock barn, an equipment and implement shed, or a loafing shed open on one side. We build them with the clearances and openings that actually fit ranch work, tall sliding or roll-up doors for a tractor or trailer, wide lean-tos for covered runs, and the eave height to get a dump bed or a hay stack underneath.
Ag buildings on red-iron frames hold up to Texas weather and the wind that comes with it, and the open clear span means you are not working around posts. We handle the pad and slab where you want one, gravel or dirt floor where you do not, and build to how the place is actually used, not a catalog template.

For businesses, a steel building is the fastest way to usable square footage: warehouses, shops, contractor yards with an office, storage and distribution space. We build the clear-span structure, pour the slab to carry the loads you will run on it, and frame in the roll-up and dock openings, offices, mezzanine framing and the doors and windows your use calls for.
Commercial work inside San Antonio city limits means permits and wind-load compliance, and we build to that from the start rather than patching it later. The result is a code-built, insurable building that goes up on a schedule, with one contractor accountable for the slab and the steel together.

Covers are the most affordable way to get steel over something you want to protect: vehicles, a boat or an RV, hay, equipment or a patio. We build free-standing carports, tall RV covers sized for a fifth-wheel or motorhome, and open equipment covers on their own slab or pad, with the height and width matched to what is going under them.
Even an open cover gets the same red-iron build and anchoring as a full building, so it handles Hill Country wind instead of folding in the first storm. Most covers go up fast, often in a day or two, and a carport can be closed in later into a full garage if your plans change.
One contractor, one point of contact, from site prep to final walkthrough.

We start by getting the building area ready: clearing, grading and bringing the pad to level, and sorting out any fill, drainage or rock the site needs before concrete. Hill Country limestone sometimes means breaking rock, and we handle that up front.
We form, reinforce and pour the slab, sized and thickened for your building and what it will carry. Because the same crew pours it, the slab and the steel layout are coordinated from the start, with anchor bolts set where the frame lands.
The structural steel goes up next: I-beam columns and welded trusses that make the red-iron frame. This is the backbone that gives you clear spans and the strength to meet San Antonio's wind load.
Metal roofing and wall panels go on in your chosen colors, with the trim, closures and fasteners that keep weather out. This is where the building gets its finished look and its dried-in shell.
We install the roll-up doors, walk doors, windows, insulation, gutters, lean-tos and any other options in your proposal. The building gets fitted out for how you actually plan to use it.
When it is done, we walk the finished building with you, check the details and make sure everything is right before we call it complete.
Turnkey, engineered, local, and quoted straight.
Site prep, slab, frame, roof, walls and doors, all under one contract. You get a finished building, not a stack of parts and a list of other contractors to call.
Every building is engineered for San Antonio's wind load, and we handle the permit question whether you are in the city or out on county land.
We build across San Antonio, the Hill Country and South Texas, including rural and ranch property, and we know the soil and rock you are building on.
Your estimate breaks out the slab, the building and the options, so you can see what each part costs. No vague lump sum, no surprises at the end.
Turnkey pricing depends on size, slab and finish. These are planning ranges for the San Antonio area; your exact number comes after a free on-site estimate.
Turnkey with slab. A 30x40 shop runs about $35,000 to $65,000; a 40x60 about $60,000 to $110,000.
The most affordable option, priced by size and height.
Warehouse and large custom builds priced by project.
What moves the number: the building's size and eave height, the concrete slab, wind-load engineering and permits, how many doors and windows, insulation, lean-tos and roof extensions, and the site prep your property needs.
These are planning ranges for turnkey builds in the San Antonio area, not quotes. Rock, finish-out and site conditions move the final price, which we set on site.
A sample of recent builds across San Antonio and the Texas Hill Country.






Straight answers from our free on-site estimates across San Antonio and the Hill Country.
In the San Antonio area, a turnkey metal building runs roughly $25 to $45 per square foot finished, so a 30x40 shop lands around $35,000 to $65,000 and a 40x60 around $60,000 to $110,000, slab included. Size, finish and site conditions move the number, so every build is quoted on site.
On-site. We are a builder, not a kit dealer. Your building is welded and fastened together on your property, start to finish, instead of shipped as a pile of parts for you to assemble or hire out separately.
Yes. We pour the slab as part of your turnkey build, from site prep and forming to reinforcement, pour and finish. The same crew handles the slab and the steel, so the foundation and the frame are coordinated from the start.
It depends on where you are. Inside San Antonio city limits a metal building needs a permit and has to meet the wind-load code. On unincorporated Bexar County or Hill Country land, many metal and ag buildings do not require a traditional building permit. We sort out which applies before we start.
Yes. San Antonio and the Hill Country fall in the 105 to 115 mph design wind speed range under the current code, and we engineer every red-iron building to meet it. A generic mail-order kit is not engineered to your site the way a built structure is.
It can. The expansive clay around San Antonio shrinks and swells with moisture, and parts of the Hill Country sit on limestone and caliche. We size and reinforce the slab for the ground it is poured on, and factor in any rock that has to be dealt with during site prep.
Once construction starts, many turnkey buildings take about 5 to 7 weeks, depending on size, the slab, weather and custom features. Carports and simple covers often go up in a day or two. We give you a timeline for your specific project before we begin.
Yes. We build the metal shell and slab for barndominiums and shop-homes, with the framing, openings and clear spans a living space needs. Interior finish-out like plumbing and cabinetry is usually handled separately, and we tell you up front what we include.
Just about anything. You pick the width, length, eave height, roof pitch, doors, windows, insulation, colors, lean-tos and roof extensions. We design the building around what you plan to use it for, not a fixed catalog size.
Yes, regularly. A lot of our work is on rural, ranch and Hill Country property, including barns, equipment covers and shops well outside the city. We are set up for county builds and the site prep that comes with them.
Financing is commonly available for metal buildings through third-party lenders, and we can point you to options for qualified buyers. Ask during your free estimate and we will walk you through it.
We build across San Antonio, the Texas Hill Country and South Texas, including rural and ranch property.