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  1. #16
    Join Date
    Nov 2017
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    Melbourne
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    73
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    358

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    Quote Originally Posted by kevviek View Post
    Is raising the ceiling joists the only way?
    Raising the ceiling joists will probably just lift them off the top plates without lifting the studs under them, not least because the top plates are carrying the roof load which should be heavier than the ceiling joists and lining. You need to lift the top plate, which can be done by jacking up the studs under the top plate as others have suggested.

    I've done this occasionally and have found that the easiest way to do it is to nail about 900mm long cleat of same dimensions as rotted studs to one side of each stud with nails that fully penetrate cleat and existing stud, then jack under the cleat. When it reaches desired height you can 'sister' a cleat on the other side bearing on the bottom plate . The sister should be 900mm+ above bottom of old stud. You can nail, nail and glue, or bolt and nut the sister to the old stud. Make sure nails or bolts are staggered along grain on old stud so you don't create a split line. If you want 'belt and braces' security, you can put a sister on both sides of the old stud.

    I might have misunderstood what you're trying to achieve, but is it really worth doing all of this if the studs have dropped only 5mm? Why not just install a bottom plate that's 5mm thicker and force the stud ends onto it?

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  3. #17
    Join Date
    Nov 2023
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    melb
    Posts
    18

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    Quote Originally Posted by mic-d View Post
    Thatís why I suggested a big lever, you can use a stud or smaller for a cleat and it keeps the area totally clear, only problem is you need a second person
    I will be able to get a second person. I know this is guesswork but do you think a 1.5m length of 100x50 would be a big enough lever?

  4. #18
    Join Date
    Aug 2004
    Location
    Brisbane
    Posts
    4,963

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    Quote Originally Posted by kevviek View Post
    I will be able to get a second person. I know this is guesswork but do you think a 1.5m length of 100x50 would be a big enough lever?
    Almost certainly not long enough, if your fulcrum is back 500mm then it's only a 1m lever. OK a fat person may work. I'd want a 2.7-3m piece I reckon but yes it is guess work

  5. #19
    Join Date
    Nov 2023
    Location
    melb
    Posts
    18

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    Quote Originally Posted by 419 View Post

    I might have misunderstood what you're trying to achieve, but is it really worth doing all of this if the studs have dropped only 5mm? Why not just install a bottom plate that's 5mm thicker and force the stud ends onto it?
    Thatís a good question. The primary reason is that an adjoining window has dropped on one side and doesnít open properly. Other than that I could just trim 5mm off the new bottom plate. If I try to force it Iím pretty sure Iíll just push the existing studs inside the house and damage the plaster.

    The photos should help understand the issue.

  6. #20
    Join Date
    Nov 2023
    Location
    melb
    Posts
    18

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    Back there next week, so will try out the options. (It’s a holiday house)

  7. #21
    Join Date
    Sep 2005
    Location
    Bendigo
    Age
    60
    Posts
    239

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    Quote Originally Posted by kevviek View Post
    How thick does the timber need to be? I just looked at my car trolley jack and itís not because it needs 100-150mm horizontal clearance for the wheels. Bottle jacks are fairly round arenít they?
    I used 90x45, most small to medium hydraulic bottle jacks will be ok. You are only lifting a relatively small point load in one area, you dont need to lift the entire side of the house.

  8. #22
    Join Date
    Nov 2023
    Location
    melb
    Posts
    18

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    Quote Originally Posted by droog View Post
    I used 90x45, most small to medium hydraulic bottle jacks will be ok. You are only lifting a relatively small point load in one area, you dont need to lift the entire side of the house.
    It was a lot easier than I was expecting.
    78971684-01CF-4E2A-982E-FF85D956EE4B.jpeg

  9. #23
    Join Date
    Aug 2004
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    Brisbane
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    4,963

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    Installer: It was a lot easier than I was expecting

    Bottom plate: I'm really glad it wasn't difficult!


  10. #24
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    Nov 2023
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    melb
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    Correct, some ďencouragementĒ was needed !

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