No concrete house building
In the interior, in new construction projects, on the other hand, in most cases a prefabricated concrete staircase, an element or block step concrete staircase is installed. The prefabricated staircase is simply lifted and fixed with a crane in the not yet closed house. Of course, this possibility is not applicable to a prefabricated house (false ceilings already retracted and roof truss available). In this case you will need structural engineers or architects as well as a skilled tradesman for the shelling and planning of a concrete staircase.