1) Firstly, there must be a distinction between the two system types, sliding and lift-sliding. The fittings of the two versions are different and can therefore be processed differently by the producer in special cases.
2) The following rule must be complied with:
Max. height = 2.5*width for manually movable systems (therefore: min. width = height/2.5)
Max. height = 2.0*width for motorised movable systems (therefore: min. width = height/2.0)
3) Special approvals will be issued on request for special projects (based on CAD documents).