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2ft high wall - piers needed?

Discussion in 'Building' started by Mekak, 4 May 2019.

  1. Mekak

    Mekak

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    Still going on about my intended 2ft high wall to create raised flower beds!

    As per the attached: intending to build a 2ft high single skin brick wall to create a raised bed against a fence that has 2ft high concrete gravel boards at the base.

    One wall about 3m long to a corner, other wall approx. 11m long and worried about the weight of earth contained pushing the wall outwards.

    Do you think I need to build some piers into it?

    Will 'internal' piers on the earth side do any good or do they need to be on the 'external' side?

    Will a single brick width coming out be enough or should I build an entire pillar?

    Will also be placing a 235L water butt at the end of the wall also raised about 2ft, possibly supported on single skin walls with a bit of 6mm steel plate laid on top - walls alone should support or should I fill below with concrete?

    Probably overthinking the whole thing but thinking means I don't have to get on with the hard work





    raised beds.png piers.png
     
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  3. Ian H

    Ian H

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    I’d build a pillar or even a return that would be below ground every couple of meters.
     
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  4. noseall

    noseall

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    A bit of shape to the wall could make it many times stronger.
     
  5. Nige F

    Nige F

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    The odd buttress wouldn't go amiss
     
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  6. 23vc

    23vc

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    Do you mean like this (or something along those lines)? If so piers not required. It’s single skin block about 3 foot high. It’s full of soil but it’s fairly narrow and I don’t think the earth exerts much sideways pressure on the wall.
     

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  7. Mekak

    Mekak

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    It's the first real brick wall I've built so don't worry it will have plenty of shape to it :eek:

    As Ian said, will go with 18" high returns and try to tie in somehow to every other fencepost even if it's only with a long screw into the mortar line.

    Must remember they're there though and not try to dig them out in the future!
     
  8. ^woody^

    ^woody^

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    The only piers that would benefit from is Piers Morgan under it. Nothing else.
     
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