Foam plastic - Wet room board = any cheaper options?

[Dracula]

Hello!
I want to buy a couple of boards of the type below. It doesn't need to withstand constant moisture, but it should be spacklable, lightweight, rigid, and as thick as this one (4-5cm). (The model below has a wide core of cellplast and a shell of fiberglass and cement). Are there alternative products on the market with a more reasonable price?

 

[Onsalakorven]

Hello,

Bauhaus has a cheaper alternative called Ultrament. The same type of board but cheaper than, for example, Jackon/Lux. However, it doesn't seem to be available in full sheets, so you would need to splice it.

 

[Alexn72]

Spontaneously, I think you could make your own... Or glue the tiles onto foam plastic instead... Is it similar to what you were planning to do in the picture?

 

[Huddingebo]

Do you use true plasterboards to build "inner walls" in a bathroom?
For example, to tile a wall screen against a shower?

 

[ajn82]

Is the picture above standalone walls for a shower corner? No studs or anything else to make it stable?

I'm curious because I want to build something similar in the future, and then finish with a glass door between them in the opening, and it looks really good in the picture, but I don't understand how it holds

 

[Onsalakorven]

Spontaneously, I'm thinking that you can make your own... Or glue the tiles on foam plastic instead...
Is it similar to what you were thinking of making?

That's true, you can buy rigid EPS and reinforce it yourself. Alternatively, just tile on it; I think that works too.

 

[Dracula]

Is the picture above freestanding walls for a shower corner? No studs or anything to make it stable?

I'm curious because I want to build something similar in the future, and then finish with a glass door between them in the opening, and it looks really good in the picture, but I don't understand how it holds

Yes and no. The walls can't just be attached as the picture shows; there must be some other connecting construction that supports them. Here you see the end result. I am a woodworker and saw these wet room boards when they came to the market 16-17(?) years ago, but I have never worked with them myself. In my case, I'm not going to work in the bathroom but build something else. Considering how expensive these boards are, one might wonder if using a studded wall isn't better and easier.

 

[Dracula]

Spontaneously, I think one can make their own... Or glue the tiles onto foam instead...
Is it similar to the picture you were thinking of making?

yeah maybe. I'm not going to tile, just get some surface and then paint. However, I want this cemented surface for better durability. Spackle won't do.