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Garage Slabs in South Africa

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Leaderr approved Garage Slabs - contractors pouring concrete from a pump hose into a reinforced raft foundation with steel mesh and timber edge formwork on a South African residential site

Garage Slabs are reinforced concrete floors for garages, carports and workshops, built to carry vehicles and fall towards the door. Send one request and independent contractors reply with availability and prices.

Describe your project once to get garage slabs quotes.

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What the Work Includes

  • Excavation. Removing topsoil and levelling.
  • Fill and compaction. Compacted layers under the slab.
  • DPM. Damp-proof membrane in enclosed garages.
  • Mesh. Steel mesh to the specification.
  • Concrete. Pour with a fall to the door.
  • Finish. Wood-float, steel-trowel or power-floated.

Suitable Projects

New garages, replacing cracked garage floors, carports, workshops, boat and caravan storage, and outbuildings.

Available Systems

  • Slab inside footings. A surface bed within the garage foundations.
  • Thickened-edge slab. A simple raft for freestanding garages, where designed.
  • Carport slab. An open slab with edge beams and drainage.

How the System Is Chosen

Soil, vehicle loads and whether the garage is part of the house decide the slab design.

Project Process

  1. Measure. Size, levels and access.
  2. Prepare. Excavate, fill and compact.
  3. Form. Edge shutters and DPM.
  4. Steel. Mesh placed on spacers.
  5. Pour and finish. Concrete placed and floated.
  6. Cure. Keep cars off until the contractor advises.

Garage Slabs Prices

Ballpark prices so you can sanity-check a quotation.

ItemBallpark price
Garage floor slabR550 - R950 per m²
Single garage, about 18 m²R11,000 - R20,000
Double garage, about 36 m²R22,000 - R40,000
Power-floated finish, addedR40 - R90 per m²
Breaking out an old slabR150 - R350 per m²

Prices JUST UPDATED. Indicative ballpark figures in rand, rounded and excluding VAT. They reflect typical South African market rates for this kind of work. They are not our prices or quotations, and no contractor is bound by them. Confirm VAT, delivery, steel, concrete and what each quotation includes.

Get prices for your project rather than a range. Send one request, with no obligation.

Request a Quote

What Affects Cost and Timelines

  • Size. Small pours carry minimum charges.
  • Old slab removal. Breaking out and rubble removal.
  • Fill depth. Sloping sites need more fill.
  • Finish. Power floating or coatings.

What to Send for an Accurate Quote

  • Your name, email and phone or WhatsApp number.
  • Your town or suburb.
  • The service you need.
  • The approximate size, such as floor area in m² or wall length and height.
  • A short project description and your preferred start date.
  • Whether you have approved plans, engineer's drawings or a soil report.

Plans, drawings and photos can be shared with the contractor you choose once you are in contact.

Garage Slabs FAQs

How much does a garage slab cost?

A single garage slab is roughly R11,000 to R20,000 and a double R22,000 to R40,000, excluding VAT.

When can I park on a new slab?

Usually after about a week for cars, but follow the contractor's advice.

Can a cracked garage floor be repaired?

Small cracks can be sealed. Badly cracked or sunken slabs are often broken out and replaced.

Does a garage slab need plans?

A new garage needs approved plans. A replacement floor usually does not.

Related Services

Raft Foundations South Africa passes your request to independent slab contractors suited to the job. Foundation and slab designs are project-specific, so confirm the design with a registered engineer and get a written quotation before you pay a deposit.

Garage Slabs. Describe your project once and get the best quote, fast.

Request a Quote

Get the Best Quote, Fast

Keep it brief. Give your location, the service, the approximate project size and a short description. With your consent, your enquiry is passed only to independent contractors suited to the job, and you decide whether to go ahead.

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