Most residential bathrooms do not include a drain in the middle, at least in my part of the world.
Most residential bathroom floors here are as level as the tradesman can get them.
Not sure if the residential code is lagging, or if it's just not a popular design here.
https://codes.iccsafe.org/content/IPC2021P3/chapter-4-fixtur...
Most residential bathrooms do not include a drain in the middle, at least in my part of the world.
Most residential bathroom floors here are as level as the tradesman can get them.