Common Footing Types

The type of earth you lay your foundations on can have repercussions for your house for decades after it’s been built, and for the course of its whole life – this is especially the case if you have a concrete slab floor.

Much of Adelaide soil is considered reactive, meaning it contains a significant proportion of clay. The clay component in the soil expands or contracts depending on seasonal changes to the presence of water.

All clay-based soils have the potential to change volume and shift with changes in the amount of moisture in the soil – and are sometimes called ‘reactive soils’ because of this. The amount that soil is likely to shift defines how ‘reactive’ it’s considered to be.

Some soils have a greater potential to change volume than others, and this amount of potential needs to be measured with a soil test to make sure your house’s footings are designed in a way that helps protect it from soil movement that might otherwise cause it to sink or buckle.

As a quality Adelaide home builder, Australian Classic Homes engages specialist professional engineers to undertake soil testing and the design of foundations to safeguard your investment. Solutions are specific to your home and land so neither under-engineered which can result in  structure damage, nor over-engineered resulting in greater unnecessary costs.

We try to be realistic with our clients from the outset and will advise our clients in the early stages of any additional costs are to be expected by carrying out a Soil Test on which the Engineers can provide us with an indication of the footing sizes. Allowing a realistic footing size in the beginning means our adjustments on footing costs are usually much less than some competitors who make a very minimal allowance.

If you want to know more about the reactive soils and footings simply give us a call on 8332 6099… we’d love to hear from you.

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