The flooring type suitable for the structure you are modeling is selected.

Beam-and-slab structures = It refers to the plate system in which the floors are supported by the beams.

Waffle slab = It refers to the two-way ribbed slab systems.

One-way rib slab = Refers to one direction threaded slab systems defined with the rib object in the program.

Flat slab = It refers to the plate systems that are formed with shearwalls and/or columns and do not contain beams.