Whether you’re building a detached garage, a workshop or an addition, it starts with the foundation — and a garage slab does far more than a patio. It carries the walls, the roof load and vehicles, so it needs proper footings or a thickened edge, the right thickness, reinforcement, and a base that won’t settle. We pour garage foundations and slabs across Knoxville and East Tennessee to that standard.
We build monolithic (thickened-edge) slabs and slab-with-footing foundations, sized to your structure and local code — handling excavation, base compaction, forming, reinforcement, vapor barrier where needed, anchor bolts, and a clean troweled finish.
Garage foundation types we pour
- Monolithic (thickened-edge) slab foundations
- Slab-on-grade with perimeter footings
- Rebar and/or fiber reinforcement sized to the load
- Vapor barrier under heated or finished spaces
- Anchor bolts set for the wall framing
- Proper slope to the door for drainage
Built to carry the load
A garage slab has to handle wall and roof loads plus vehicles without cracking or settling. We size the thickness, footings and reinforcement to your structure and set it on a properly compacted base — the difference between a floor that lasts and one that cracks in a couple of winters.
Permits and engineering
Garage foundations generally require a permit and must meet local code, and larger structures may need an engineered design. We build to the approved plan; if a stamped foundation design is required, we can connect you with a good engineer — we don’t do the engineering in-house, but we pour to spec.
What it costs
Garage slabs and foundations are priced by the project — size, thickness, footings, reinforcement, site access and excavation all factor in. As a rough guide the flatwork runs about $10–$12 per square foot, with footings and thickened edges adding to that. We measure the site and give you an itemized number.