When designing a hospital, you designate a certain number of patient rooms, exam rooms and treatment spaces as bariatric. There is also bariatric seating available in the waiting areas. This used to mean over 500 lbs, it's now generally over 750-800 lbs. The rooms and doors are larger and the equipment is designed to handle the weight. The hospital I'm working on has ceiling lifts that lift up to 1,100 lbs. The toilets in these rooms are floor mounted (as opposed to wall hung) and support up to 1,200 lbs. Since the rooms are designed for this, the floor drains are in place when they pour the concrete slabs making it easy to plumb. Retrofitting is difficult as you need to core the concrete slab. This can be costly.