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Install Main Flooring and Ensure Drainage Access

3:13
12:41
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Insane Bathroom remodel- How to Build an indoor cave

What happens here

After the perimeter boards are cut and fitted, they are installed, secured by screws or adhesive to the concrete subfloor. The main central area of the shower room is then filled with parallel composite boards, which are designed to free-float due to the tight fit against the perimeter and the force of gravity. This section also highlights that the central boards are removable to allow access to the underlying drain, making maintenance easier. The entire floor is angled down towards the drain for proper water flow.

Goal: Lay the main floor boards and create an accessible drain area.

Tools and materials

  • Composite Decking Boards MoistureShield — The main flooring material
  • Rubber Mallet/Hammer — Tapping boards into place for a tight fit
  • Screws/Adhesive — Securing the perimeter boards
  • Silicone Sealant — Creating a watertight seal between the composite board and the wall

What they say

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create a watertight space. So, another part of this build is how we're laying this floor in is gravity. It's based on securing the picture framing, but then the field, which is the inside stuff. There's no attachment to the floor cuz when you got it so tight, you don't need to. All right. So, here comes the test. You trimmed them up. That'll be our first one. Then we'll put one over here. That's about as tight as you can get it. So, I still want to probably tap on the that the that picture frame down. Screw it right to the concrete. Just the picture frame part. Just the picture frame. Yeah. So, that way all the corners will stay nice cuz this center part will have the drain beneath it. So, we want access to it and Yep. So, eventually if that ever plugs up, we can pull these boards out, get into the drain, and then cover them back up. Cuz this is meant to free drain. You're not supposed to see the drain. It's going to be hidden underneath the flooring, but these boards are not watertight, but they're waterproof. You can submerge these underwater indefinitely and it'll never hurt them. And they're comfortable on the feet. So, for a project like this, this would be exactly what I'm looking for. For me, I would consider this better than tile.

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