3.1. Apply cement (1 in to 1 1/2 in [2.5 to 3.8cm] thick) within the traced contour of the shower base. This will help level the base in subsequent steps. The
thickness of the cement layer varies depending on your floor.
3.2. Before setting the shower base onto the cement, it is recommended to cover the cement with a thin (2mm [1/16 in]) sheet of polyethylene. This will prevent
the base from being permanently stuck to the cement, and allow for future ajustments if necessary.