Once the Slabs tab is selected from Cross-section Type dialog box, the dialog box will be displayed on the screen as shown below.

The following parameters can be defined on the Slabs tab:
- slab thickness (thickness of the concreting slab) on the left and on the right side,
- prefabricate thickness (thickness of the prefabricated slab supported by an RC section) on the left and the right side - the options: Slab and Hollow slab are mutually exclusive
- slab lowering on the left and the right side (only for the floor slab),
- slab overhang on the left and the right side (only for the floor slab),
- support depth.
If the 'Left Slab' option is inactive, the L-section with right overhang will be assigned.
If both options (left / right slab) are inactive, the rectangular section is automatically called up (provided no cuts have been defined).