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  1. L

    Extending existing steel beam.

    Yeah, minimum 50mm from edge of existing. Then 140mm triangulated/ pyramid spacing. Using M12 60mm 10.9 high tensile. I always over engineer... Cheers
  2. L

    Extending existing steel beam.

    Hi, I have to remove a brick pillar extend an existing steel beam by 150mm to the inner leaf of a cavity wall. (Current beam 178x60mm PFC) I've been advised by an engineer to to stitch a new 700mm long 125x65x15mm PFC to the inside of the existing using x4 M12 8.8 high tensile steel bolts or if...
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