What should be fitted first in a bathroom?

Bathroom installers are unanimous if you are looking for a high-quality finish, with a better seal against water damage, then always place tiles on the floor first. When it comes to a practical space such as a bathroom, function has to come before form, especially in a small bathroom. Be sure to leave enough space between sanitary items so that people can move and sit or stand comfortably; for example, there should be at least 60 cm between the toilet and anything in front of it. Towel racks should be placed at an easy-to-grip distance from the bathtub or shower, and the cabinet and shower doors should be opened unobstructed.

He has placed the suite perfectly in his bathroom, but “oh, no”, he didn't think about the door and now he bumps into the beautiful, new bathroom unit or vanity every time he enters the bathroom.