When setting the Shower Pan Drain, be sure to set the "flat area" of the bottom half directly on the sub-floor surface, as shown in the Image to the right.
Proper Instalation Of Shower Pan Drain
"Blocking" around your shower stall is required to give the Shower Pan a solid surface to sit against, and also protect it from careless tradesmen who might otherwise knock a hammer or other instrument through the Hot-Mop membrane. "Blocking" is best done with 2"x10" or 2"x12" boards cut to fit between the studs. See the Image to the right.
Blocking Your Shower Stall
Setting the "Curb"
The "Curb", also called the Damn, is the area that will serve as the entrance to your shower stall. "Curbs" are usually built by stacking either three or four 2"x4"s on top of each other. The minimun height requirement for a curb is 4 1/2", although some people prefer the look of a higher curb and may build it 6" or even 7 1/2" tall.