Drill screws into the bare floor between the inner and outer curb edges every foot or so and at every joint.
How to install a shower base on a timber floor.
Prepare the area for installation.
This will later help join the curb to the floor.
Pour it into the curb frame until the mud reaches the top of the wood frame making the top as level as you can.
Chisel away any flooring that would be under the pan before attaching the drain hole s strainer.
Use a broom or a vacuum to clear loose debris.
Mixing pouring the pan.
Check local building codes for the correct concrete depth and the required size and thickness for the rubber membrane.
If needed use 2x4 lumber to frame in the box that will serve as the form for the concrete pour.
Vacuum the subfloor and check the level.
Press the shower pan base into the mortar adjusting it until the entire base is level.
Put the new base in place and double check the level before securing it with galvanized screws and connecting the drainpipe to the shower pan s strainer.
Place the shower pan onto the mortar making sure the pre drilled holes on its rim line up with the wall studs.
Mix the mud according to manufacturer instructions.
Make any additional surface preparations that are recommended by the shower pan manufacturer as necessary such as applying a fresh coat of a water seal product to the.
Lay down cardboard to protect the fabric as you do the wall to floor connections.
Put the thinset on the floor and wall focusing on the inside edge.
Clear all debris and old adhesive from the surface.
Use a wide blade putty knife or a paint scraping tool to peel off old caulking and adhesive.
The shower in this project will be flush with the side of the whirlpool bath so the frame needed to extend under the tub overhang.
Press the fabric into place with the trowel on both the pan and the wall.