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How much does a garden shed slab cost?

Concrete slab cost can range from around $3000 for a small shed up to $12,000 or more for a large shed. The total cost of a concrete slab for a shed is largely based on its size, with average prices being: $3360–$4320 to pour a slab for a small shed (6m x 7m to 6m x 9m)

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The total cost of a concrete slab for a shed is largely based on its size. Expect to pay around: $3360 for a small shed (6m x 7m)

$7840 for a medium sized shed (7m x 14m)

$12,840 for a large shed (12m x 13m)

If you're thinking about installing a shed, the first thing you'll need to do is have a concrete slab poured for it to rest on, unless you have one already. Concreters will normally give you a quote for the cost of a concrete slab per square metre. The average cost to pour a concrete slab is around $60 per square metre, but it can be anywhere from $50/m2 to $85/m2 depending on the size and thickness of the slab. The same concreter will charge different rates for different jobs. Square metre rates are calculated according to the job to make pricing fair for everyone. Some of the factors that affect a job's rate include:

The thickness of the slab

The size of the job

Whether the surface is flat or sloping

Access issues

Your location

Most sheds are relatively small and are located at the rear of the property. For a concreter, this means they have to take travel and set up time into consideration. While they might be able to pour the slab in less than a day, they may be able to finish a larger job at the front of a house in the same amount of time. If the surface is sloping, they may need to do some excavating or pour a slab that's thicker on one side than the other. Time-consuming jobs like these cost concreters more, so the rate you pay for a concrete slab for a shed may actually be higher than the rate you might pay for a driveway on a flat surface at the front of your home. Concrete slab cost can range from around $3000 for a small shed up to $12,000 or more for a large shed. The total cost of a concrete slab for a shed is largely based on its size, with average prices being: $3360–$4320 to pour a slab for a small shed (6m x 7m to 6m x 9m)

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$7840 for a medium sized shed (7m x 14m)

$12,840 for a large shed (12m x 13m)

The concrete slab cost is only the first part of building a shed. The total cost of a shed project starts from around $10,000 for a small shed up to $28,000 or more for a large shed. Different concrete finishes will also add to the cost of your slab, if you want a decorative finish.

Spray on concrete costs around $50–$75 per square metre

Plain concrete costs $60–$85 per m2

Coloured concrete costs $75–$90 per m2

Exposed aggregate (pebblecrete) and stencilled concrete cost $100–$150 per m2

The best way to find out how much a concrete slab for your shed will cost is to get quotes from at least 3 local concreters.

Get quotes from local concretors now Get Quotes

To get accurate quotes, give them as many details about your project as possible, such as:

How large a slab do you need?

Does your slab need to be stepped or sloped to allow for drainage outside the shed?

Is any decorative concreting needed?

Are there any access problems?

Will a truck be able to access the site?

Will the shed be on a flat or sloping surface? If it's sloping, how steep is the slope?

If you give concreters a clear idea of the full scope of your job, this will help them to give you accurate quotes for concrete slab cost per square metre. They will want to inspect the site before they give a firm quote, but you're less likely to be disappointed if what they see is similar to what you described in your online query. *Cost and prices in this article are indicative and should only be used as a guide. They also vary locally and are subject to market forces.

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