Accessible bathroom design, not only incorporates consideration for items such as fixtures, vanities with knee room and grab bars, it requires consideration for maneuverability.
Items for assisted mobility such as wheelchairs and walkers require turning and maneuvering space.
To allow someone who requires wheelchair or walker to conveniently place themselves in front of and into all bathroom fixtures you must have an unobstructed area of 30 inches (750 mm) by 48 inches (1,200 mm), as shown in Figures 15 and 16, for a 2-piece bathroom.
Using a pocket door, rather than a standard swinging door can add a substantial amount of maneuvering room to a small bathroom, as shown in Figures 15 and 16.
Figure 15 - Accessible 2-piece bathroom - plan 1
Figure 16 - Accessible 2-piece bathroom - plan 2
Additional information on pocket doors
Three piece bathrooms require more maneuvering space than a 2-piece bathroom.
When designing a 3-piece bathroom there should be a clear unobstructed area that is a minimum of 5 feet in diameter, as shown in Figure 17. To accommodate power wheelchairs or electric scooters, additional maneuverability is required and the free unobstructed area should be a minimum of 6 feet in diameter. (Note that if the door opened inward, a substantial amount of the maneuvering space would be lost.)
Figure 17 - Accessible 3-piece bathroom
No matter how many fixtures may be in the bathroom it is important that the maneuvering space is there to accommodate wheelchairs and walkers.
Depicted in Figure 18 is a bathroom with a large bathtub, walk-in shower, toilet, double basin vanity and a storage cabinet. Sufficient unobstructed maneuvering space has been left between all fixtures in order to accommodate wheelchairs and walkers.
Figure 18 - Accessible 4-piece bathroom