Building A Shower Pan On Concrete Slab

Build the concrete slope over the liner.

Building a shower pan on concrete slab. It should rest directly on the concrete slab. Just don t let the concrete slab trick you into thinking that you don t need to waterproof the shower pan because you do. For this example we ll use a drain that is in the center of the shower pan.

There are many construction steps involved in the build but here i will discuss one of the earliest steps building the shower pan. We first need to frame in the shower pan with 2x10 lumber around the bottom of the floor and regular 2x4 studs up the walls. But you already knew that from the last post where i build the shower curb.

The drain the concrete mud base and the waterproofing membrane. Concrete will absorb water and you will have no idea where it travels and what it is effecting. The curb is the edge of your pan that isn t along a wall and where you would step into the shower.

The drain can be anywhere on the pan as long as we slope the concrete for proper drainage. There are 3 more components to my shower pan. A concrete slab is stronger and stable giving an excellent surface to work on.

Building a shower stall over a concrete slab is a straight forward process. There are several ways to make a shower pan waterproof a pre made pan can be used made of plastic or concrete. To be able to know how to build a concrete shower pan you need to have mortar concrete backer board and tiles.

Find the length of the side of your shower area that doesn t have a wall. Use pressure treated wood to frame the wall of the bathroom. Build a curb for the shower pan using 2 in 4 in 5 1 cm 10 2 cm boards.