Bench in the shower. What depth should it have?

Hello everyone,

we are currently planning our new house and I am thinking about our shower. We have not planned a bathtub, so the shower should be as comfortable as possible. The shower is nice and spacious with 160x100. Therefore, we have also planned a bench. However, the designer has planned the dimensions as 100x35x45 (WxDxH). In retrospect, the depth of 35 seems quite shallow to me. I would prefer not to touch the cold tiles when sitting there. Therefore, a certain distance from the back to the wall should also be maintained while sitting.
What is generally recommended as a depth for such a bench? I am currently leaning more towards 45 or even 50.

Best regards
Martin

So we planned ours with about 30cm, but the tiles don’t bother me either, because warm water runs there as well.

I would probably also expect about 45cm. But it probably also depends on whether the shower is mounted directly underneath or how the water comes from above. I don't know… it might get in the way when showering normally… also the shower gets shorter.

The shower is mounted on the wall to the side. Here is a sketch with the planner's scribbles (which already includes the electrical planning). Although the exact locations of the shower outlets are not yet marked, we have verbally agreed on mounting it on the wall (on the drawing, the upper wall, then directly to the left of the seating area). If I subtract a seating area of 45, there would still be 115 space left to the shower door. I think that is quite comfortable.

I would install the shower door on the partition wall to the bathroom and have it swing inward. Gives more space for the shower ;)

Yes, the idea is good, but the wall to the toilet is not full height. In addition, the additional radiator for the towels is installed in the area in front of the shower door. So if I were to redesign as suggested, the wall to the toilet would have to be significantly higher (if not even full height) (-> there would also be less daylight in the shower) and the radiator would have to be relocated. This way, I could further enlarge the shower room. However, this would have the disadvantage that it would restrict the space directly behind the washbasin. So if I am standing in front of the washbasin, I have the shower door "right behind me" at a relatively short distance (about 1m or slightly less). I would have less freedom of movement in front of the washbasin. A movement space of 1m in front of the washbasin is not very generous ;)