WU Directive, Minimum Component Thickness

The following minimum component thicknesses apply to in-situ concrete walls:

• Wall: 240 mm for load class 1, 200 mm for load class 2
• Floor slab: 250 mm for load class 1, 150 mm for load class 2

minimum component thicknesses apply to prefabricated elements or element components. These are set out in the WU Directive.

Source: bauwion