Second floor sag in door opening
#1
06-06-16, 07:04 AM
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Location: USA
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Second floor sag in door opening
So I bought a house built in 1920, started renovating it. There is a 112" opening in a bearing wall between 2 rooms on the first floor which I can only guess use to be a set of french doors at one time and was torn out and made to be a larger opening. While I was demoing the plaster ceilings I noticed a 3/8" to 1/2" sag in the ceiling directly in the center of the opening and after tearing the ceilings out, the wood trim around the opening, I saw that there was a 6 x 6 used to span the distance across the opening. What I am wanting to do is to get 2 screw jacks on either side of the opening, jack the ceiling joists back to level( or close to level as possible) then replace the 6 x 6 with a 10" or 12 " LVL to carry the load. My question is, how slow do I need to go with turning the screw jacks? do I actually need screw jacks or would a couple of bottle jacks and some 4 x 4 posts suffice?
#2
06-06-16, 08:21 AM
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1/2" is not much. IMO you would probably want to build temporary walls on each side, then build your header and use a couple bottle jacks to jack the header up where you want it. Be sure you have solid framing under the jacks and under the king and trimmer. They should not be sitting only on subfloor or on a single joist, you may need to add framing between floor joists to transfer the load to the foundation below.
#3
06-06-16, 05:09 PM
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