For anything over about 0.5 m³ order ready-mix by the truck — bagging it yourself gets expensive fast below 1 m³.

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Concrete Calculator

Cubic meters of concrete for a slab, plus the typical 10% over-order to avoid a short pour.

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Length (m)

Width (m)

Depth (m)

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Frequently Asked Questions

Ready-mix or bagged?: For anything over about 0.5 m³ order ready-mix by the truck — bagging it yourself gets expensive fast below 1 m³.