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Old 01-11-2011, 10:31 PM   #1
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Issue with subfloor replacement

When remodling our bathroom, we had to romove a big part of the subflloor because of water damage and also because we had to move the toilet. The issue is that the part we removed goes beyond a parition wall. My husband's idea is to nail a joist under the partition wall to support both the new subloor in the bathroom and the remaing part of the old one (closet in adjacent room). I am not sure if this is good for the structure and if this will lead to problems in the long run. Could you please advice. Thanks a lot.


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Old 01-12-2011, 03:50 AM   #2
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Perhaps it's because I'm blond, but I'm having trouble picturing your situation clearly. How large of an area? Direction of the joists? Partition wall?

Posting some pics would really help.


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Old 01-12-2011, 06:41 AM   #3
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From your description, it does sound like it is a partition wall, runs perpendicular to joists?? If yes, what you propose sounds good to me. But use something larger 2x6 or same size as joists. All plywood joints not supported, should also be.
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Old 01-12-2011, 09:21 AM   #4
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Thanks a lot for your quick reply.
Here a little drawing which might clarify the situation:
Issue with subfloor replacement-bathroom.jpg
The subfloor was running under the wall to the joist in the bedroom. Now my question is whether it is sufficient to screw a 4x2 (or another size) from to the bottom of the wall frame on which I could screw the plywood covering the now cut out area.
Would sistering the joist next to the wall in the bathroom help?

Thanks again for your help.

Last edited by hennetina; 01-12-2011 at 01:09 PM.
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