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  1. M

    Building regulations and bolting 2 RSJs

    The RSJs are 2850 long if this makes a difference.
  2. M

    Building regulations and bolting 2 RSJs

    My question relates to current building regulations for using 2 paralle RSJs. The house is victorian with a 27mm wide wall (2 bricks, no cavity). I am knocking through the old exterior wall that now separates the original exterior wall into a newer a kitchen extension. If I install 2...
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