Installation Guide
 FlexStoneProducts.com  - 5 -  5/18 
3.  Ensure that the sub-floor is clear of debris and completely flat and level. The entire bottom of the 
base must be in contact with a flat, level surface. The shower base will not drain properly if the 
subfloor surface is not level. Place a level on the threshold and nailing flanges of the shower base 
to ensure the base is level before gluing the base to the sub-floor. Use a pencil to mark each stud 
at the top of the nailing flange. Do not use shims to level the shower base. If the sub-floor is not 
level, use a self-leveling concrete and wait for it to completely dry before installing the shower 
base. 
4.  Following the shower drain manufacturer’s installation instructions, install the shower drain (NOT 
INCLUDED) by first cutting the drain pipe to the appropriate height for the shower drain. Next, 
remove the strainer from the drain. Apply silicone around the edge of the drain hole in the shower 
base between the upper portion of the drain body and the shower base. Insert the upper portion of 
the drain body in the drain hole of the shower base. Install the included gaskets under the shower 
base between the shower base and the lower drain body. Twist the lower drain body, while 
securing the upper drain body, until tight. 
DRAIN ASSEMBLY 
Strainer 
Upper Drain Body 
Silicone Sealant 
Shower Base 
Lower Drain Body 
Friction Gasket 
Rubber Gasket 










