*As a general rule for small projects, 10% extra concrete should be allowed for wastage when estimating the volume required.
Volume Calculator
![concrete volume diagram](https://hunterconcrete.com.au/storage/sites/4/2021/09/Volume-Calculator-Diagrams-400x300px.jpg)
![Post hole volume diagram](https://hunterconcrete.com.au/storage/sites/4/2021/09/Volume-Calculator-Diagrams-400x300px-hole.jpg)
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