Hollow slabs can be created with the expectation of various types of loads. The strength of the plate is characterized by the use of a larger reinforcement and a higher brand of concrete. When using a rather thick reinforcement, you can not at all be afraid of its deflection over time. In length, these types of ceilings also differ. The minimum length is about one meter, and the maximum reaches seven meters. The width varies in the range from two to twelve meters.