In order to offer a more complete service to our clients we are happy to form structural openings and insert lintels or steel beams. Structural openings may be required by our clients for a variety of purposes, most commonly to enable the installation of a new or wider door opening.
There is much risk involved in creating structural openings if not handled properly, particularly if the wall being considered for a structural opening is a load-bearing wall. Load-bearing walls are vitally important for supporting other sections of the building, possibly including the roof, the floor, or the top half of the wall itself. Creating a structural opening on such a load-bearing wall will lead to a shift in weight and pressure in the building, which will need to be transferred through the use of a lintel, or a steel beam.
By using a stitch drilling technique – creating an overlapping chain of core holes – we are able to form openings in walls and floors ranging from 100mm to 2000mm in depth, no matter whether the openings are in masonry or reinforced concrete.
The process involves the drilling of holes above the proposed adjustment area, before inserting small steel beams and fitting a strong timber. This timber is horizontally supported by steel adjustable props on both sides of the proposed opening, in order to transfer the load to the ground. One must then cut out a space that is the right size for the lintel, before inserting the lintel and building back any gaps.