The minimum space allowed between the edge of a lavatory and a wall is?

The minimum space allowed between the edge of a lavatory and a wall is 4 inches. This standard is set to ensure there is enough clearance for both functionality and accessibility when using the lavatory. It allows for proper water drainage, maintenance access, and reduces the risk of water damage to the wall from spills or splashes.

Additionally, this distance helps to create a comfortable and usable space around the lavatory, accommodating various user needs and preventing the likelihood of users feeling cramped or restricted when accessing the sink. If the space were less than this minimum, it could lead to operational challenges and potential safety issues, making the 4-inch guideline an important standard in plumbing and restroom design.