Because the shower wall serves as the wall for the washbasins, this Master bathroom layout is a little different. The wet zone is perfectly situated at the back of the bathroom, between the bath and the shower. This Master bathroom design opens directly onto the bedroom. It wouldn't be as effective with a door. The shower should be at the opposite end of the bath from the toilet so that the toilet does not obstruct you from getting in and out of the shower - but this means that when you're taking a bath, you have a great view of the rim of the toilet seat.