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    Raised decking on uneven and wet ground

    Gardeners

    My garden where I want decking is uneven and gets a bit soggy in heavy rain

    Would I be able to fit support posts with postcrete 700mm down? Would this be sufficient or would the wet ground be too much?

    Asked by Conor on 3rd Apr 2022
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    Best Answer

    Magnolia maintenance and gardens

    "Depends really on the ground. Going up 700mm is not a problem but would recommend 4” posts. If the posts sit on a concrete pad 300mm square and 150mm deep. Filled to ground level at your highest point. This would support your decking and keep your posts out of the water to reduce rot."

    Answered on 4th Apr 2022 - Member since Mar 2022 - report
    Homella building & Maintenance

    "Personally, I would use a bolt down post holder and fill the 700mm post hole with concrete, this would add extra weight. Another way to do it is to put the bolt down post holders onto 600x900x90 council slabs with 100mm of mot 1 hardcore underneath, this would act like a bigfoot and it would spread the weight.

    Hope this helps 👍"

    Answered on 11th Apr 2022 - Member since Apr 2022 - report
    Atkin Tree Services

    "Yes this would be fine to do allow a full bag of postcrete per post"

    Answered on 4th Apr 2022 - Member since Dec 2021 - report
    EBS CONTRACTS

    "If the ground is that wet, it'd be better to go a metre, use concrete and backfill with gravel to help with drainage"

    Answered on 4th Apr 2022 - Member since Apr 2022 - report
    Simon Landscaping

    "Yes in most cases.me I would be more likely to be 900mm"

    Answered on 4th Apr 2022 - Member since Sep 2021 - report

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