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Old 08-25-2010, 12:09 AM   #1
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Crowned joist / uneven floor


I have the same problem. Home is 15 years old. Uneven floor came up in 3-4 months. Elevated several inches above floor level. Any ideas or cures? Recently found another bump between the utility room and kitchen. No water leaks on press board as far as I know.

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Old 08-26-2010, 07:58 PM   #2
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Crowned joist / uneven floor


Cut the plywood away from the high joist and buy a new sharp 2" chisel and chisel the top of the joist and then replace the plywood.. the levelers will crack and shrink....cut the sub flooor and chisel the joist... the top of the joist can be chiseled without sistering and crazy stuff....you will need to remove some plywood


Last edited by Aaroncarpet; 08-26-2010 at 08:02 PM. Reason: clarity
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Old 08-26-2010, 09:17 PM   #3
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Crowned joist / uneven floor


Thanks for the info. What causes this problem? Is it settling or faulty materials or construction?
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Old 08-27-2010, 09:25 AM   #4
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Crowned joist / uneven floor


if it is a newer home it is because they built too soon after grading the soil and didn't let the soil settle enough. and maybe not the best construction method..if it is an older home just gravity rules.....
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Old 08-28-2010, 11:15 AM   #5
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Crowned joist / uneven floor


Quote:
Cut the plywood away from the high joist and buy a new sharp 2" chisel and chisel the top of the joist and then replace the plywood..
Quote:
....cut the sub flooor and chisel the joist... the top of the joist can be chiseled without sistering and crazy stuff....
WOW! I'm not convinced THAT procedure would be the lessor of the evils. I'm thinking THAT APPROACH would be the "crazy stuff". Oh well...I learn something new everyday.
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Old 08-28-2010, 11:20 AM   #6
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Crowned joist / uneven floor


You may be right bud....it works if you don't have access to the joist from below...
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Old 08-28-2010, 11:29 AM   #7
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....it works if you don't have access to the joist from below...
Good point, hadn't thought of that. I can see/imagine a few drawbacks tho.
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Old 08-28-2010, 11:35 AM   #8
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Crowned joist / uneven floor


Yeah you need a straight edge to determine how much to chisel off.. and if you don't know how to use a chisel it could take a while..., but if you are going at least 1/4" and remove enough subfloor you could probably do most with a sawzal and clean the ends with a chisel...

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