Metal Building Slabs in Waco, TX
Metal building slabs in Waco, TX go under steel shops, equipment barns and barndominiums, and Waco Elite Concrete prices each one from the building's footprint and what it will hold, with no charge for the estimate.

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Shop and barndominium slabs on clay and rock
Most of McLennan County's soils are dark clays, silty clays or clay loams, but about 22 percent is loamy and clayey soil over limestone, bedrock the county soil survey calls a good foundation for houses and roads, even if it is commonly hard to dig. On expansive soil, the 2024 International Residential Code hands slab design to Section 1808.6 of the International Building Code.
Edges and shop floors
A slab's edges take heavy loads with less soil under them, so one driveway guide adds 1 to 2 inches of depth along them, in a band 4 to 8 inches wide. Where the building serves as a garage, the 2015 IRC text wants the floor sloped so liquids run to a drain or out the main vehicle door. House foundations have their own concrete slab page.
Call or request a free estimate any time, 24/7.
(254) 309-9254From footprint to poured slab
Footprint and use
Send the building's size and drawings, or tell us what it will store. The estimate is free.
Permits and design
Inside Waco, a new shop or storage-building foundation of 500 square feet or more has to be engineered before the forms go up.
Steel and pour
The residential code keeps slab steel between the center and the upper third while concrete is placed, with 2 inches or more of concrete cover in the National Ready Mixed Concrete Association's advice.
Call or request a free estimate any time, 24/7.
(254) 309-9254Metal building slab prices
Typical Waco figures (2024) put reinforced slab work at $7 to $11 per square foot. National 2026 averages price the extras apart: thicker edges $1 to $2 per square foot, rebar $2 to $3, a vapor barrier $0.50. These are slab figures only, and the estimate is free, as on all our concrete services around Waco.
- 20 × 30 ft
- $5,500–$9,400
- 30 × 40 ft
- $10,900–$18,700
Typical Waco prices for 4-6 in. reinforced slabs, 2024. Not the building, and not a quote.
Steel building and barndominium slab questions
How thick of concrete for metal building?
Four inches generally carries cars and SUVs, while trucks or a large RV may call for 5 or 6. For living space, Waco's residential permit page wants foundations on expansive soil, or soil with a plasticity index of 15 or more, investigated and designed by a registered engineer.
How much does a 40x60 metal building cost with a slab?
The slab has a typical Waco price: $21,900 to $37,500 for 40 × 60 feet of 4- to 6-inch reinforced concrete (2024). The building is priced by its seller, on top of that.
Do I need a permit for a metal building in Texas?
In Waco, an accessory building larger than 200 square feet takes a Residential Accessory Structure permit. In unincorporated McLennan County, new residential structures are built to the IRC that applies in Waco; the builder notifies the county, gets three inspections and sends the county the notices, since the county itself has no inspection authority. For a shop with no living space, ask the County Engineer's Office. The City of Woodway requires a permit for every storage building, even one with no permanent foundation.
Free estimates for shop, barn and barndominium slabs
Pick the metal building slab option in the form and leave a phone number or email; any hour works.




