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Old 01-09-2010, 03:52 PM   #1
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I have a house built in the 60's and the floor sags. Its on a 3ft crawl space with cinder block foundation and three 2'x2' cinderblock supports down the center of the house. I plan to jack it up with a 6x6x10 cross beam, and a few bottel jacks. then place 4x4 posts on cinder foundation blocks across the 6x6 about every 5' with U shap nailer plates. will this be good for years to come or will i need to sister the jouist as well. Or am i heading in the right direction?

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Old 01-09-2010, 04:26 PM   #2
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I would look to see what those Cinder Block supports are bearing down on. There should be a pad of concrete there to distribute the weight.
Wouldn't it be as simple as jacking and shimming the existing supports? Or is the sag between the supports?

If you do add supports, make sure they rest on good bearing points.

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Old 01-09-2010, 05:15 PM   #3
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the center supports seem fine, the house seems to sag in a W shape
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Old 01-09-2010, 05:17 PM   #4
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Originally Posted by jlhaslip View Post
I would look to see what those Cinder Block supports are bearing down on. There should be a pad of concrete there to distribute the weight.
Wouldn't it be as simple as jacking and shimming the existing supports? Or is the sag between the supports?

If you do add supports, make sure they rest on good bearing points.



the center supports seem fine, the house seems to sag in a W shape
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Old 01-09-2010, 06:39 PM   #5
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Quote:
Or am i heading in the right direction?
Ayuh,.. It sounds like you are,..
Blocking perpendicular to the sag, does the most Good, with the least materials....
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