Shower P Trap clearance
Wound up doing Dri Core flooring,then a 2 by 6 on edge framing,then a 3/4 inch Advantech board as a final footing for the shower base.
Had about 1/2 clearance for the trap,no chipping involved.
About 6 3/4 inch rise on shower stair with finished floor in.
Bonus,able to dovetail a drain for a new utility sink into shower drain going into the Saniflo pump,with bathroom sink going into the other side of the pump,and toilet going into the front of the pump casing.
Last edited by spring3100; 01-23-2013 at 10:36 AM.