I am about to build an internal blockwork wall that will have floor joists hung off it. Will the structural engineer for the job specify the type of lintel to be used above the doorway or will I have a choice between concrete and steel box?
Are steel box lintels better/stronger than reinforced concrete ones? They seem to cost about 3 times as much.
Are steel box lintels better/stronger than reinforced concrete ones? They seem to cost about 3 times as much.