These days with new and open concept designs, most people want to have large windows and doors, however, Needling or Propping is one of the most popular solutions in renovation projects.
This way we can support existing loads above by drilling/cutting and inserting U-Shape needles (steels) into the existing building in specified spacings (that calculated by a structural engineer), while structural works are being done and to form/make a new or enlarged opening in an existing masonry wall.
Here are the Needling/Propping installation stages:
(Highly recommended to have this procedure under the supervision of a Professional Engineer)
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