A primary part of any free-standing shower is the shower base. In many homes this structure consists of a prefabricated fiberglass pan. This is an inexpensive option, but it limits the owner to several prefabricated sizes. In addition, a fiberglass base isn’t very aesthetically pleasing.
A hand poured based offers the ultimate in flexibility. It can be any size, and you can choose any drain and tile style. This type of base is what I’m choosing for the townhouse that I’m renovating. See the photos below for more information.