Clearances. The maximum permissible clearances are shown in the following table. The maximum permissible clearance between the panel(s) and floor must be respected throughout the entire thickness of the panel when the door is in closed position. For this purpose, the floor under the door must be sufficiently level. The latter must be prepared by companies, which are responsible for levelling floors so that the maximum difference between the lowest and highest point in the finished floor between the door (zone 1 in Fig. 3) is equivalent to the maximum permissible clearance between the panel and the floor.
