Get a quote
  • Slabs & foundations
  • 20–25 MPa

Concrete Slab for a Jojo Tank, Shed or Carport: Free Quotes

Need a concrete slab for a Jojo tank, shed, carport or generator? Send one request and local South African contractors and suppliers quote free. No obligation.

  • Quotes fromconcrete contractors and builders
  • Areaall nine provinces
  • Cost to youfree

Get a free quote

A small square timber-shuttered concrete base freshly poured in a garden, ready for a water tank stand beside a house
A small square timber-shuttered concrete base freshly poured in a garden, ready for a water tank stand beside a house

Get a free concrete quote

Tell us what you need and where. A contractor or supplier who works in your area quotes you directly. Free, no obligation.

Pour docketPD 124600

Pour calculator (optional)

Length and width in metres, thickness in millimetres. Add a row for each slab, footing or path. The totals go into your request.

#Length mWidth mThick mmQty
1×××
2×××
3×××
0m² area
0m³ concrete
06 m³ trucks

Order about 5–10% more than the net volume to allow for waste and uneven ground.

Strength, if you know it
Tick what applies (optional)

Free and no obligation. By sending you agree that we may share your request with a suitable contractor or supplier. See our privacy policy.

Many jobs need only a small concrete slab: a base for a Jojo tank, a shed or Wendy house, a carport, a generator or a pool pump. They are small, but they still need level ground and the right mix. ConcreteSlab.co.za is a free quote service. You fill in one form and we pass your request to independent concrete contractors and suppliers in your area, who quote you directly. We do not pour or sell concrete ourselves. There is no fee and no obligation.

Common small slabs

A small concrete slab is a base that keeps something level, dry and stable. Most are 75 to 150 mm thick and cover just a few square metres.

  • Jojo tanks: a full tank is heavy, so the base must be flat, firm and wider than the tank.
  • Sheds and Wendy houses: the slab keeps timber off damp ground and the building square.
  • Carports: posts need either footings or a slab thick enough to hold base plates.
  • Braai and fire-pit pads, steps and patios: a flat, fireproof base with a slight fall for rain.
  • Generators and pool pumps: a firm pad that stays level and keeps equipment off wet soil. With load-shedding, many homes now need one.

Size, thickness and strength

Make the slab larger than the object on it, usually by 150 to 300 mm on each side. A water tank is the heaviest item on this list. One litre of water weighs one kilogram, so a 5,000 litre tank weighs five tonnes when full. For tank stands, ask the tank supplier for the base size and thickness they recommend.

A 100 mm slab in 20 to 25 MPa concrete, with light mesh such as Ref 193 to SANS 1024, suits most sheds and pump pads. Heavy tanks and carports with posts need more. The concrete should meet SANS 878, and the cement should be CEM II 42.5N to SANS 50197-1.

Site preparation and small-load realities

Strip the topsoil, level the area and compact the ground. On expansive clay, a slab on loose or wet soil will crack and tilt. A bed of compacted sand or gravel helps.

For a pour of one or two m³, you can mix on site or order ready-mix. Ready-mix trucks carry about 6 m³, and many plants have a minimum load, so a small order may pay a part-load charge. Some suppliers offer small-load or bagged options. Rural sites face long delivery distances, so group jobs where you can. Remember the council and the NHBRC do not usually need plans for tiny pads, but a shed near a boundary may.

What affects your quote

We never give prices here. Small jobs can cost more per m³ than large ones, which surprises many people. Contractors will look at:

  • The slab size, thickness and the volume in m³.
  • Ground preparation and shuttering.
  • Mesh, and the concrete strength.
  • Ready-mix or site-mixed concrete.
  • Part-load charges and the delivery distance.
  • Access for a truck, or the barrow run from the road.

Give the exact size and what will stand on the slab.

Comparing quotes for small concrete slabs

The lowest figure is not always the best deal. When your quotes arrive, check:

  • Specification: the thickness, the concrete strength in MPa, the steel and the membrane, so every quote is for the same work.
  • Preparation: excavation, sub-base compaction, shuttering and who removes spoil and rubble.
  • Concrete and access: ready-mix or site-mixed, whether a pump is included and any part-load or waiting charges.
  • Finish, curing and guarantee: the surface finish, how long it will be cured, where joints are cut and what guarantee covers the work.

What to include in your request

  • Give the slab length, width and thickness.
  • Say what will stand on it, and how heavy it is.
  • Describe the ground: slope, clay, sand or fill.
  • State whether you want ready-mix or site-mixed concrete.
  • Mention your town and the access from the road.

Frequently asked questions

Does ConcreteSlab.co.za pour small concrete slabs?
No. ConcreteSlab.co.za is a free quote service. You send one request and we pass it to independent concrete contractors, ready-mix suppliers and builders' merchants near you. They quote you directly. We do not pour, sell, deliver or install anything, and there is no obligation.
What size slab does a Jojo tank need?
The slab should be larger than the tank base, usually by 150 to 300 mm all round, and level. A full tank is very heavy, so the ground must be firm. Ask the tank supplier what thickness and strength they recommend, and tell contractors the tank size.
How thick should a shed or generator slab be?
A thickness of 100 mm is common for sheds, Wendy houses and generator pads, using 20 to 25 MPa concrete and light mesh. A heavy generator or a tall carport may need more. Mention the weight and the posts or fixings when you ask for quotes.
Can I get a small amount of ready-mix delivered?
Often yes, but plants set a minimum load and may charge for part loads. A trailer or a bagged mix can suit a very small pour. Ask suppliers near you what they offer, and group several slabs into one delivery if you can.

Small Concrete Slabs by province

Small Concrete Slabs by city and town

SlabSlabs & foundations
MixReady-mix, pumping & materials
Get a free quote