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I have a cement slab and need a shed/workroom? Does the slab need to be removed?

I had a shed salesman out today to quote one of their sheds, a 16x9 shed. Their sheds' floors have a metal grid base covered by wooden planks. He advised they could build right over the top of the existing plain 10x 9 "patio" slab of concrete that I currently have extending from the side of the house, but he also said I could have someone come out and drill into the existing slab, add re bar, and expand it to be the foundation of the shed they would build--- yielding a shed with a concrete base.

I noted that the concrete appears to slope away from the house. It is about 2-3 inched above ground level at the house and even with it at the farthest point from the house. He proceded to say that "well...maybe they can't do that."

I hope that someone who is familiar with this type of thing might give me some insight. Is is possible to salvage the slab? Would it need to be removed and replaced with a new slab? What kind of ballpark and I looking at for that?

(I live in Texas where labor tends to be a little cheaper.)

3 Answers

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  • Anonymous
    1 decade ago
    Favorite Answer

    yes you can add rebar and add to the slab put an ad on craigs list you should be able to get someone to do it for less than 200 bucks make sure when they build the shed that the water will run away from the house when it rains

  • Anonymous
    1 decade ago

    As long as the slope of the new shed roof is sufficient to shed rain, I see no problem using your existing slab for the shed room.

    If you can use it, it would save a heap of money.

  • Anonymous
    5 years ago

    You need to completely wash the slab - power washer and then bleach it. My parent's neighbor had this problem when they bought a house that had a zillion pets living (and peeing) in it. They ripped the carpets out, and then power washed the foundation, and they bleached it. That finally got rid of the smell but it was so gross! Good luck.

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