St. Cloud Pro Concrete
Concrete pumped through a hose into a square footing hole, steel reinforcing bars on the ground beside it

St. Cloud, FL Slabs and foundations

Concrete Slabs and Slab Foundations in St. Cloud FL

St. Cloud Pro Concrete is a concrete slab contractor in St. Cloud FL, pouring slabs for detached garages, workshops, room additions, barns, carports and sheds, and slab-on-grade foundations with their footings. Slabs in the Orlando area run about $4 to $8 per square foot (Angi, 2026), and a slab that is part of a building gets the termite treatment and vapor retarder the Florida Building Code calls for before the concrete goes in.

$4 to $8 per sq ft
Concrete slab, Orlando area (Angi, 2026).
6 mil
Minimum vapor retarder over termite-treated soil (FBC R318.1.4).
$60 + $60
Osceola County slab-with-footers plan review + permit fee.

Concrete slabs in St. Cloud FL: what they hold

  • Detached garages, workshops and carports, usually with thickened edges where the walls or posts land.
  • Room additions and screen rooms that tie into the house slab.
  • Pole barns and equipment slabs on rural lots out toward Holopaw.
  • Shed slabs too big to count as a pad; small pads are on their own page.
  • Slab-on-grade foundations, poured to the engineer's or the plan's footing and steel details.

Every one of those is permitted work. Inside St. Cloud the City issues the permit; in Harmony, Narcoossee, Holopaw and the rest of unincorporated Osceola County it is the county, which lists "slab with footers" among the jobs that need one. The St. Cloud permit guide and Osceola County permit guide list the fees.

New single-story house with a dark garage door and a freshly poured concrete driveway, the yard still bare soil
A new driveway poured before the sod goes down.

What goes into a slab here

Ground and fill

The native ground around St. Cloud is mostly deep flatwoods sand, and the USDA describes the common Smyrna series as having its water table within 18 inches of the surface for one to four months in most years. Slabs are built up on clean fill compacted in lifts, and the grade around them is set so water drains off and away. The sandy soil guide has the soil survey details.

Termite treatment and vapor retarder

For a slab that is part of a building, the Florida Building Code requires termite protection for new construction. With soil treatment, the soil is treated after excavation, fill and compaction are finished, any soil disturbed afterward is retreated, and the treated soil is covered with at least a 6 mil vapor retarder; if it rains before the retarder is down, the soil is treated again. A licensed pest control company issues the certificate of compliance. The termite pretreatment guide quotes each step.

Steel, thickness and edges

The building plans set the footing sizes, thickened edges and reinforcing for a foundation slab. Garages and workshops usually get rebar and a thicker slab than a patio; a typical shed slab is 4 inches with wire mesh or fiber. The concreteslabcost.com model uses 4 inches with 6 by 6 mesh as its standard slab and 6 inches with #4 rebar at 18 inches for a garage-weight slab.

Slab specs by use
UseCommon specNotes
Shed or patio slab4 in, wire mesh or fiberBase: compacted sand or stone
Garage or workshop floor6 in, #4 rebar at 18 inAs modeled by concreteslabcost.com for garage use
Building slab or additionPer the plansTermite treatment + 6 mil vapor retarder (FBC R318)
Driveway apron in the county right-of-way6 in, mesh or fiberOsceola County road specifications

Sources: concreteslabcost.com 20 x 20 slab model (October 2026); 2023 Florida Building Code, Residential, Section R318; Osceola County Road Construction Specifications. A building's own plans or engineer's details always govern.

Close-up of a shovel working through wet concrete
Wet concrete being worked into place.
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Concrete Slabs in St. Cloud: Questions

Footprints pressed into a concrete path beside a strip of grass
Footprints left in a path that was walked on before it set.

Do I need a permit for a concrete slab in Florida?

Usually. Florida leaves it to each city and county: the City of St. Cloud lists a residential concrete pad as permitted work with a $60 base fee in its 2026 schedule, and Osceola County lists a slab with footers ($60 plan review plus $60 permit fee). State law now lets a single-family owner skip the permit for work under $7,500 by filing a written exemption request, but not for structural work or on a property in a flood hazard area.

What is poor man's concrete?

An informal name, usually for soil or sand mixed with a little cement and compacted (soil cement), or for a lean mix with far less cement than normal concrete. Wiktionary defines it as a mixture of soil, sand, gravel and the like used instead of concrete. It can firm up a path or a parking spot, but it is not a substitute for a slab that carries a building, a vehicle or equipment.

What goes under a concrete slab in Florida?

Compacted, clean fill with roots and debris removed, then, for a slab that is part of a building, a termite treatment and a vapor retarder. The Florida Building Code requires termite protection for new construction, and when soil treatment is used, the treated soil must be covered by a vapor retarder of at least 6 mil before rain can dilute it.

Can a slab be poured on fill sand?

Yes, if the fill is clean and compacted in thin layers. Most building pads in Osceola County are built up with sand fill because the native flatwoods soils sit wet for part of the year. What causes trouble is fill dumped in one deep layer, fill full of organic matter, or a slab edge where water collects.

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