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  1. K

    How to Sister a 1st floor joist with 880 mm piece cut off in the middle.

    @stevie888 Thanks so much for your idea. I also did consider trimming back to both ends and stopped and decided to ask 1dt if either methods I narrated above was adequate. Now, before choosing the best method, I will trim back and see what's at the end and how feasible or easy it will be to...
  2. K

    How to Sister a 1st floor joist with 880 mm piece cut off in the middle.

    @Deluks Thank you so much. I was also wondering about extra noggings and adding back "the cut off piece". If I use this method, I think I will also increase the span to 880 mm either side - total of 2640 mm (880+880+880). I like this method better to reduce the overall weight of all added...
  3. K

    How to Sister a 1st floor joist with 880 mm piece cut off in the middle.

    1st floor joist. The part containing concrete for fire base. Builders removed the chimney / all fire ??? years ago but left the concrete that buttresses on adjacent joists (can't remember correct name). I now removed the concrete and gap between the cut joist is 800 mm. I want to sister this cut...
  4. K

    How to Sister a 1st floor joist with 880 mm piece cut off in the middle.

    I want to sister a 1st floor joist (180 x 50mm) that has an 880 mm piece cut off in the middle ( from past chimney removal). I am thinking to either (1) use a similar sized joist spanning the empty 880mm space and extending 600 mm from either cut off side (total length 2080) or (2) using two...
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