Shower – How long and tall does a shower wall need to be to protect against overspray

bathroomshower

We're designing a curbless shower right now and would like it to be doorless. The design would have the showerhead on the West wall, and the entry along the East side of the North wall. This general sketch should help:

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|                     |
|S           D        |
|                     |
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S = Shower Head

D = Drain

The East and West walls are 34" and the South wall is 67". The North wall is currently the one we're not sure what to do with.

How long does the North wall need to be? If there is no code for this, then what length should it be to properly protect the rest of the bathroom from overspray? Related, does it need to run up to the ceiling or can it be just a few inches above the shower head for a more open feel?

Additional Info

In case anyone is curious or it's relevant…

Our main concern is that we would like to add a bench along the East wall (or possibly a corner bench), but need to make sure the entry opening is big enough that it is not uncomfortably blocked by the bench. So we are attempting to minimize the length of the North wall.

The interior of the shower will be tiled floor to ceiling. Remainder of the bathroom will be paint over greenboard. The shower will be a curbless entry, preferably without a curtain. We've already accounted for sloping the floor to the drain.

I don't mind a small amount of water spraying the first foot or so out of the shower entry, as long as we're not talking about a puddle.

Best Answer

First off check your local codes to see if you have to comply with the ADA or other codes.

Otherwise, the width of the opening to enter the shower will dictate your wall length. Personally I wouldn't want anything smaller than 32" but that might just be me.

The height should be high toward the shower head and could be a little lower further out. Some of it depends on how tall you are. Shorter people would cause less spray up high.

I would say not less than 6 feet high but then, that might just be me again.

Good luck!