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Paving slab base for my small shed. Any tips please?

Discussion in 'In the Garden' started by DIYNotIan, 3 Apr 2013.

  1. DIYNotIan


    8 Sep 2010
    Thanks Received:
    South West Wales
    United Kingdom
    Hi all

    After the very helpful advice in my previous post (thanks for that), I'm back looking for a few more general pointers before I get out there and get my hands dirty.....

    The shed in question is 4' x 6' with a lean-to. The base/floor has pressure treated bearers. Here's a link:


    And here are some pics of the site where the shed will be situated. It's going to go where the sleepers are in this one:

    Gravel cleared:

    Close up of the ground. It's very compacted as the car used to be parked there:

    I've got six 2'x2' slabs which should measure pretty much exactly the same as the base. They are really heavy duty and 2" thick:


    I'm happy with the slabs being higher than the surrounding gravel as I think it will be better for drainage.

    OK, so here are my questions...

    1. Should I dig further down in the area before putting in the sand/cement or go for it as is? The ground is very compacted and it almost seems counter productive to loosen it by digging.....

    2. As per the suggestions in my previous post, I'm going to use a mix of sand/cement. Could someone confirm whether this should be a dry mix or whether I should be adding water to the mix?

    3. Is sharp sand ok? Some sites say yes, others say to use builder's sand.

    4. Should I aim for completely level or very slightly sloping from front to back (so when water gets on the slabs it runs off)?

    Excuse all the questions but this is the first time I've ever done it and I want to get it right. Help with the above and any other tips you can offer would be fantastic.

    Huge thanks

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  3. leeco


    9 Jul 2007
    Thanks Received:
    United Kingdom
    Hi Max,

    The ground as it is looks ideal as it is now. I would use a dry mix of sharp sand a cement. I would lay them level. Try this site it is full of good info.

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