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-   -   Jackinig Up Sagging Joists (http://www.houserepairtalk.com/f32/jackinig-up-sagging-joists-15204/)

1victorianfarmhouse 12-09-2012 02:38 PM

Jackinig Up Sagging Joists
 
2 Attachment(s)

One side of the kitchen floor near the basement stairs is sagging and has been for many years. This is because the main vertical support post on that side was anchored in concrete, and rotted over the years. There is about a 3/8" difference in height between the right and left sides of the doorway seen in the picture.

I have removed the rotted post and have a temporary post in place holding it up. I would like to put a steel I-beam in place under the joists with a jack and post under each end to jack it into place gradually. The I-beam would be 78" long, 4" wide, and 5" high. In the picture the beam would run along the white board in the picture from the joist near the gas line and continue past the hard to see white joist near the bottom of the picture and end at the joist at end of the stairway. Does this sound like the correct thing to do?

I can get the I-beam and columns easily enough, but the jacks are my question. What types of jacks should I look for that I can gradually adjust that will be strong enough to actually lift the house a few fractions at a time until I have it level??

There is already some cracking in the walls, so that's not an issue.

As always, thank you very much!

vince


1victorianfarmhouse 12-09-2012 02:38 PM

Jackinig Up Sagging Joists
 
2 Attachment(s)

One side of the kitchen floor near the basement stairs is sagging and has been for many years. This is because the main vertical support post on that side was anchored in concrete, and rotted over the years. There is about a 3/8" difference in height between the right and left sides of the doorway seen in the picture.

I have removed the rotted post and have a temporary post in place holding it up. I would like to put a steel I-beam in place under the joists with a jack and post under each end to jack it into place gradually. The I-beam would be 78" long, 4" wide, and 5" high. In the picture the beam would run along the white board in the picture from the joist near the gas line and continue past the hard to see white joist near the bottom of the picture and end at the joist at end of the stairway. Does this sound like the correct thing to do?

I can get the I-beam and columns easily enough, but the jacks are my question. What types of jacks should I look for that I can gradually adjust that will be strong enough to actually lift the house a few fractions at a time until I have it level??

There is already some cracking in the walls, so that's not an issue.

As always, thank you very much!

vince


nealtw 12-09-2012 11:33 PM

1 Attachment(s)

I ment new footing in the floor.



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