Concrete Slab Costs (m2, House, Shed) [2021]

Types of Concrete Slabs | Cost per Square Metre | Concrete Slab House Cost | Shed Concrete Slab Cost | Thickness of Concrete Slab

Concrete slab cost takes into account many factors including material cost, the thickness of the slab, type of concrete slabs, labour. Per cubic metre, concrete slab price range between $240 to $329. In Adelaide, the price is $243 per m3, and in Sydney, prices go up to $333 per m3 for ground slabs.

Different types of Concrete Slab Costs

The different types of concrete is one of the most influenced factors that determine the price of concrete slabs. Spray-on concrete is the most affordable type of concrete that costs in a range from $50 to $75 per m2. Plain concrete follows with the prices from $60 to $85 per m2. Reinforced concrete cost ranges between $65 to $90 per m2, while coloured concrete from $75 to $90 per m2. On the top of the list are decorative stencilled and exposed concrete costing from $100 to $150 per m2. No matter what concrete you choose make sure that it fits your budget and your calculations.

What is the cost of a concrete slab per square metre?

The concrete slab cost is determined mainly by the size of the area on which you are going to pour a concrete slab, the thickness of the slab, type of concrete, accessibility of the area. In Australia, the average concrete slab cost per square metre goes in the range from $50 to $150. However, concrete slab prices may vary from one location to another, therefore residents in New South Wales are exposed to the highest rates ($85 per m2) while those living in Western Australia can expect to pay an average cost of $50 per m2 for a concrete slab.

How Much Does A Concrete Slab for A House Cost?

Before starting with your concrete house slab project think about your budget and the amount you are willing to spend on the installation. The cost of a concrete house slab per square metre in Australia ranges from $64 to $108 and most commonly the price depends on the thickness of the concrete slab as well as the location you are living in. For a 100mm thick concrete slab, residents in Perth will pay the most affordable price of $64 per square metre, and those living in Sydney for the same project will pay $90 per square metre.

Cost of A Concrete Slab for a Shed?

The average cost of a concrete slab for a shed is between $65 and $85 per square metre. When it comes to pouring a concrete slab for a shed, it is essential not to make any improvisations with the project, but rather hire professional concreters to do the foundational job for you. A solid base is crucial for the shed to be installed, so avoid any mistakes from assumptions and get shed designs instead. These costs are normally different from concrete driveways as the use case is different for sheds. If you want to know the cost for your shed concrete slab, ask for a quote from at least three different concreters.

What is the thickness of a Concrete Slab?

The standard thickness for a concrete slab is 10cm or 4 inches. It depends on the purpose of the slab, but the minimum thickness required is 5cm or 2 inches. The thickness of the slab correlates with the strength and durability as well as with the surface on which it is going to be poured.

Related Concreting Resources

Spoon Drains (Full Guide)

Spoon drains are drain lines with an interior trap that protrude into the pipe enough to create a “spoon” shape. Here at Specifier, you can read about its use.


Besser Block (Ultimate Guide)

A Besser Block is a hollow, rectangular concrete building block that’s used to build houses, commercial structures, multi-story apartment complexes, and industrial buildings. For what do we use Besser blocks? Read here.


Stiffened Raft Slab

This stiffened slab is a structural panel that can be used to build floors or roofs. It’s essentially a concrete slab with rigid foam attached to the bottom and top for insulation. Read more…


Slab Heave (Full Guide)

Do you have soil moisture conditions? Slab heave is the most common problem in the industry and occurs when excess moisture inside a foundation wall freezes and thaws. Read everything about it!