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Mon, Mar 20, 06 at 18:13
| I need to put in a support in the basement for a sagging floor. Right where I need the support, there is a footer. Can I just use one of those screw type columns on top of the footer or do I need to have a column installed into the concrete itself? ie - Do I have to dig out 30" or so of concrete to drop in a support?
Thanks,
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Follow-Up Postings:
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| Hi Tony, I am not an expert but I do know that you cannot simply put a post (column) onto an existing concrete floor. The 4" or so of concrete simply isn't thick enough for the load of a column. You will most likely need a 10" to 12" thick concrete footing, and the footing will likely need to be 30" or 36" square, depending on your local building code. |
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| There is already a properly sized footer in place (which is a long story from the previous owner of the house). |
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| Is this post going to support a beam or a joist? If there is a proper footing already there then is it possible a support was removed at some point in time? This would certainly explain the sagging floor. If the footing is there and you are supporting a standard size beam then the lally column will work fine. |
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- Posted by bus_driver (My Page) on Sat, Mar 25, 06 at 17:35
| I would use the existing footing. If it proves adequate, you are a big winner. If it proves inadequate, you are exactly where you are now plus you know exactly what is needed. You will not lose by trying it. I have welding equipment and I prefer to use the screw posts to get the house where I want it, then make a permanent, non-adjustable, post that just fits. I can get within 1/16 of an inch, close enough. |
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