concrete footing for raise bed - 20mm ballast ok

Discussion in 'General DIY' started by zuber ali, 1 Nov 2021.

  1. zuber ali

    zuber ali

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    quick question, making a small raised bed out of concrete blocks approx 400mm high. for my footings is 20mm ballast ok or do i need to use 10mm. thanks
     
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  3. Mr Chibs

    Mr Chibs

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    20mm will be fine.
     
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