Concrete Slab Installation in Nashville, TN

Nashville Precision Concrete pours slabs for detached garages, sheds, workshops, carports, generator pads and home additions throughout Middle Tennessee. Our first step on any slab is figuring out what it has to carry and what is under it, because a shed floor and a two-car garage on the same clay need very different builds.

Much of Davidson County is mapped as clayey soil weathered from limestone, and the USDA describes series like Mimosa as slow to drain, with bedrock often within about four or five feet. That combination means a slab can end up half on rock and half on soft clay, which is a recipe for a crack straight across the middle unless the base is built to even it out.

We pour slabs for property owners in Goodlettsville, Madison, Antioch, La Vergne, Smyrna, Nolensville, Spring Hill, Gallatin, Mt. Juliet and the surrounding communities & more. Timing matters too, so see the best time of year to pour concrete in Nashville before you book.

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Why Choose Nashville Precision Concrete

Concrete Slab Services

Concrete Slab Installation

We start with a soil probe and a string line, find the high and low corners and decide how much cut or fill the pad needs. The stone base is compacted in lifts, and a vapor barrier goes under any slab that will sit beneath a heated or finished space.

A plain broom slab typically runs $6 to $10 per square foot. A 12-by-16-foot shed pad at that rate comes to roughly $1,150 to $1,920.

HVAC & Generator Pads

Condensers and standby generators need a level, solid pad that sits above splash line. We pour these a few inches above grade with a slight pitch so rain drains off rather than pooling under the unit.

Small pads like these often fall under a crew's job minimum of roughly $500 to $1,500, so pairing one with a walkway or patio usually makes better sense.

Detached Garage Slabs

A garage slab gets thickened edges that act as a footing, rebar in the turn-down and a 4-inch minimum field, or thicker where a lift or heavy truck will park.

On lots under 40,000 square feet, Metro zoning generally caps accessory buildings at 700 square feet or half the main house's building coverage, whichever is greater. We size the slab to fit what your permit allows.

Workshop & Barn Floors

Shops with welders, table saws or a tractor need a denser slab and tighter joint spacing. On larger rural lots out toward Gallatin or Spring Hill we also plan for the truck path to the door.

We can leave sleeves for future floor drains, compressed air lines or wiring so you are not cutting a finished floor later.

Additions & Sunroom Slabs

Slabs for living space follow the residential code and need Metro Codes inspections before the pour. We coordinate with your builder on footing depth, insulation and the vapor retarder.

The slab has to land at the right elevation to meet the existing floor, so we shoot grades off the house before the forms go in.

Slab Replacement

Cracked, sunken garage floors are usually replaced because the base under them failed. Tear-out and haul-off typically adds $2 to $6 per square foot, and we rebuild the base before the new pour.

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Our Slab Process

Load & Soil Check

We ask what the slab will hold, probe for rock and look at where water drains across the lot. That tells us thickness, steel and base depth before we price anything.

Grading & Locates

Tennessee 811 locates come first. Then we cut the pad, chip down limestone that rides high and replace soft pockets with compacted stone so the support is even.

Forms, Steel & Barrier

We set forms square and level, place the vapor barrier where needed, and chair rebar or mesh so it ends up in the middle of the slab instead of lying in the dirt.

Pour & Cure

We place and finish the concrete, cut control joints within a day and apply curing compound. Light loads can go on in about a week, and heavy equipment waits longer.

Slab Questions We Hear in Nashville

Sheds usually get 4 inches. Garages get 4 inches minimum with thickened edges, and 5 to 6 inches is worth it for trucks, boats or a car lift.

For most residential slabs, no. Metro Water Services requires a grading permit once a project disturbs more than 10,000 square feet or moves more than 100 cubic yards of material, or if fill goes into a floodplain or a sinkhole drainage area.

The May 2010 flood showed how far water can reach from creeks like Mill Creek and Richland Creek. If your lot is in a mapped floodplain, Metro has extra rules, and we check the flood map before quoting.

We recommend a 10 to 15 percent contingency because rock or soft clay found during excavation can change the base work.

Yes. Many clients pour a concrete driveway connection at the same time so the two slabs meet at the right height.

Framing on a slab can usually begin within a few days, though concrete keeps curing toward full strength for about 28 days.

In the heat of a Nashville July we keep the surface damp or sealed for those first days, since a slab that dries too fast loses strength at the top where wear happens.