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    Internal RSJ building work


    I am having an internal wall taken down and RSJ put in but i would like the RSJ to be flush to the ceiling. The builder has said he needs to cut the joist back and then will re-join with 300mm joist screwed to the orgional ones and then hand these on the RSJ, is this strong enough ? or should bolts and longer pieces of timber used.. if bolts how many per joist should be used.

    Asked by David on 28th Aug 2019
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    Luxe Renovations limited

    "Best thing to do is to ensure it complies with building regs"

    Answered on 3rd Sep 2019 - Member since Aug 2019 - report
    Total build solution

    "Yes it strong if it’s over 1.2 and must use timer connectors or bolts An alternative way is to cut joist we’re tsk is to be placed double up a timber bolt through tsk then use jiffy hangers on cut joists to timber in rsj yielding. Ontroll prefer this method"

    Answered on 4th Sep 2019 - Member since Aug 2019 - report

    "1.5 same size timber treated using 16mm nuts and bolts using zig zag method with dog washers in between"

    Answered on 16th Sep 2019 - Member since Aug 2019 - report

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