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Building a small breeze block shed

Discussion in 'Your Projects' started by mountdale, 31 Jan 2018.

  1. mountdale

    mountdale

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    hi,
    I plan to build a small shed in my garden just to store things like lawnmowers, shears and fishing gear in.
    I plan to build it using just the 4 inch lightweight breeze blocks as i have before, along with a flat sloping roof.

    My question is how deep would i need to make the concrete base/footings for this, to fill with concrete?

    Someone had suggested 3 foot but looking at this it seemed a bit excessive for what i am trying to build here for storage?
    Many Thanks
     
  2. Notch7

    Notch7

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    it depends on the ground and site conditions.

    blocks and cement mortar are unforgiving of movement and will crack if the foundation moves.

    in good ground you may get away with 450mm depth -or even less depending on how shallow the top soil is and how quickly you reach load bearing ground.

    if you are surrounded by trees and hedges and are in clay soil then all bets are off! -in that case you would be better building off a raft
     
  3. mountdale

    mountdale

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    Hi,
    Is that just for the footings for that depth rather than the whole concrete base/floor?
    Thanks
     
  4. Bullet-Proof_Biscuit

    Bullet-Proof_Biscuit

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    This type of foundation is usually a raft of say 150-200mm depth for the middle area with a perimeter deeper of say 450mm, but as above these figures need to be tailored to the ground / surrounding site conditions.

    Pics would help
     
  5. mattylad

    mattylad

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    Im sure I have seen suggestions that whole houses can go on a 150mm raft of concrete, so a small outbuilding should be fine on it.
     
  6. DIYnot Local

    DIYnot Local

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