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What thickness of concrete patio slab

Discussion in 'Building' started by u587162, 24 Mar 2021.

  1. u587162

    u587162

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    Hi

    What generally speaking is the recommended thickness of a concrete base / slab prior to fitting porcelain tiles on an external patio? The underside is soil / hardcore.
     
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  3. sxturbo

    sxturbo

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    3-4 inches
     
  4. u587162

    u587162

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    Is this sufficient for a mini digger to keep going over?
     
  5. sxturbo

    sxturbo

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    Yes with the relevant compacted hardcore base
     
  6. 23vc

    23vc

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    I’d go at least 100mm thick and make sure the here’s a decent well compacted hardcore base below it, purely because if it did crack it’d be a bit of a disaster
     
  7. Munroast

    Munroast

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    I wouldn't have a mini digger going back and forwards over porcelain tiles if the base for 4 foot thick
     
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