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How to Calculate Concrete for a Slab or Footing
Getting the numbers right for your slab or footing Ordering ready-mix concrete involves more than picking a grade. Whether you are pouring a garden slab, a shed base, or a footing for a small extension, the first step is always the same: working out how much material you need. Get this wrong and you either end up short, with a half-finished pour, or with a surplus that hardens in the skip. This guide walks through the calculation step by step, and explains what to watch out