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Construct Shower Pan, Curb, and Bench with Waterproofing

7:34
17:04
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At 7:34 in

Building a GIANT Shower (Home Remodel)

What happens here

Construct a shower pan curb by laying down two pressure-treated 2x4s and securing them with long screws into the subfloor. Next, build a shower bench frame from 2x4s and top it with OSB. Secure 2x6 scrap pieces to the base of the walls inside the shower area. This creates a raised edge for the waterproofing liner to wrap up against. Mix a mortar bed, starting with a 1-inch thickness at the edges and sloping down to 3/8-inch at the drain. Lay down a PVC shower pan liner, folding the edges upwards and securing them to the top of the 2x6 boards. Seal the liner around the drain using silicone and a two-piece drain assembly. Place small pea gravel around the drain and then apply a second layer of mortar bed, ensuring a proper slope towards the drain (1 inch down to 1/2 inch).

Goal: Build a waterproof shower pan, curb, and bench that effectively directs water to the drain.

Tools and materials

  • 2x4 Lumber — Framing the shower bench
  • 2x6 Scrap Pieces — Creating a raised edge for the waterproofing liner
  • Impact Driver Dewalt — Securing lumber for the bench and curb
  • Level Stanley — Ensuring proper slope and straightness
  • Long Screws — Securing the shower curb to the subfloor
  • Mixing Bucket — Mixing mortar
  • Mortar Mix — Creating the shower pan slopes
  • OSB — Topping the shower bench
  • PVC Shower Pan Liner Oatey — Primary waterproofing layer for the shower pan
  • Paddle Mixer — Mixing mortar with a drill

What they say

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teach that in school now of course later on before the wet weather kicks in I will rent a ladder long enough and replace the siding along with the window trim from the outside like a normal human being the shower pan has the most specific rules as well as waterproofing drainage layers that are needed to be followed very carefully for the sake of this video later on I'll put out another video did it can be exclusively to the drainage in the waterproofing steps when building the shower pan so in the meantime I will just brush over some of these steps in this video right now alright here's a little dilemma guys um just to show you that I'm not a contractor and I don't know what I'm doing all the time but I'm always asking the right questions to the right people and not afraid to fail so here's an example failure and asking somebody for the right question this bench cannot be closer than eight inches away from the glass here that's for cleaning the glass purposes and stuff like that so it has to be either a flush which I don't want it to be where meaning the window would have to come out here it's complicated basically the easiest solution we found out is I'm going to chop it off right here and I'm gonna see if I can realign this for the Caddy so only human so no point showing you this so I'm gonna take this and and just like that we're a lot shorter and that is pretty but right I secured two by six scrap pieces to the bays to allow for the waterproofing liner to wrap up this is basically creating a flood zone so we will secure the liner to this edge then I secured the tepee shower drain with the two inch drain pipe using adhesive and set the screws in the subfloor I used a mortar mix to create the first slope which runs from 1 inch and slopes down to 3/8 of an inch which is basically flushed with a drain now seems to be that some people are using carbon paper barrier before this layer and from my homework on this project it seems like it's an old-school method that's being practiced less and less these days next I lay down the PVC shower line our folding the edges and securing at the top of the 2 by 6 boards to prevent water leaking in case this level floods I remove the top of the two-piece drained laid a bead of silicone around the ring creating a gasket and folded carefully the water liner over it here's a tricky part I use the top piece of the two-piece drain to find the hole create a small X and screw the top piece to the bottom piece making sure the…

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