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    rdesseck's Avatar
    rdesseck Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Aug 3, 2008, 10:18 PM
    Slab on sand
    I want to add an addition to my camp on an inland lake in Gwinn, Mi. The soil is all sand. My question is what kind of support do I need under the slab I plan to pour for the floor. I was hoping that just putting down some concrete tubes about 4 feet would be enough support.
    ballengerb1's Avatar
    ballengerb1 Posts: 27,378, Reputation: 2280
    Home Repair & Remodeling Expert
    		  
    #2

    Aug 4, 2008, 10:36 AM
    I think there's a story or two in the Bible about folks who build on sand. If you can't get down to a flat site of solid earth or rock to pour a slab you will need to excavate a complete footing. I think the frost line in your area is 48"+.
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