How small can a shower room/ toilet be?

Question

I'm crearting a studio apartment. I have only a tiny space for the shower/toilet. Anybody know what the regulations are for this space?

Answer 1

With just a shower, toilet and small sink you can get away with a very small space. You need to be able to sit with knee room, get in and out of the shower without banging the shower door. Get some measurements from products at the home store, and use duct tape on the floor to get a visual. Put a chair in the place of the toilet and see if you have knee room. Make some pencil marks to show how far out the shower door will swing. That will give you a good idea of space. Don't forget to take off for wall thickness and plumbing, and wiring for light. Make sure the shower door will swing out and not hit the toilet or sink.