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joist support too long for tiling; can I 'shorten' them???

11 years ago

a room I wish to tile has too long a joist span according to the deflectometer calculation but if the span was only 1-2' shorter, I fall in the acceptable range. I'm wondering if I can 'artificially' shorten it by installing a lally column 2' from the basement wall and support 5 joists with something like a short steel i-beam. I assume if the lally column's base was wide enough, it could rest directly on the concrete floor even though there is no footing there.

This sound too crazy?

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