Wide shower pre-wall element / shower wall mounting

That can work, but it doesn’t have to. I did it that way too and later thought that it was very bold. The tiler was very, very unsure whether it would work. However, we have wooden studs and made sure that there is a stud in the wall aligned with the shower wall mounting, and accordingly used long stainless steel screws. We also thoroughly examined the tile layout at this spot to achieve a clean yet stable edge. It wasn’t easy, but the result is right. Important was: I managed the construction myself, and for both trades (tiling, plumbing) I was constantly on site. Exact coordination with suppliers was necessary. So, a lot of effort for actually a very small step. In hindsight, I would have allowed 2-3 cm more at the wall and that would have been fine.

The argument that a bit more overlap is better cannot be dismissed. The sweat on the forehead of the gas-water-beautiful-bath installer while fixing it showed me that. Very expensive glass-ceramic tiles are so hard that drilling on such a narrow edge often causes cracking.

Regards, Markus

Do you have tiles on the shower wall? If yes, what width? For example, if you have tiles that are 30 cm wide, it already looks odd when you have to piece them together...

Is the shower tray not installed in front of the tiles? Then the pre-wall must already be 9 cm + tile thickness + adhesive thickness.

Good morning

An overhang of 1 - 3 cm is pointless because the screw will not be screwed into the wooden stud anyway.
With a wall construction of e.g. 12 - 17 mm tile, 2 x 12.5 mm drywall or drywall and OSB, the fastening remains in this material.

I would fasten the lower part of the strip with screws and glue the upper part.
Since the partition wall is fixed, I do not expect any significant load there.


Olli

To pick up the topic again...

We had made our partition wall almost exactly 90cm (so with drywall and tiles...)... but I only noticed afterwards that this was problematic because the shower screen has to be installed exactly in the area where there is now nothing "solid"... since I ordered my partition wall online and installed it myself with my dad, I had even more concerns... the 8mm glass was also quite heavy...

In the end, it fit well because the glass partitions are given with standard dimensions (for example 90x90), but in reality they are only about 87.5x87.5cm... the reason is probably that the shower trays have the dimensions 90x90 and the walls are mounted slightly inward on these (see also the picture in the second post)... with custom-made glass from the glazier it is probably not like this, but it can be adapted to the circumstances.

This should possibly also be taken into account for the floor tiles... our tiler laid mosaic tiles in this area because it is a level-access shower without a shower tray... of course also tiled in the dimensions of about 90cmx90cm... but these are largely covered by the rubber profiles and the stainless steel rails. They only peek out slightly in front of the shower screen... 1-2 cm more would have looked quite bad...