What is the minimum distance for the center of a water closet from an obstruction?

The minimum distance for the center of a water closet from an obstruction is 15 inches. This measurement ensures adequate space for a user to comfortably access and use the water closet without being hindered by adjacent fixtures or walls. Maintaining this distance helps to comply with accessibility standards and building codes, which prioritize user safety and comfort.

While other distances may be referenced in various contexts, 15 inches is the standard for achieving a balance between practicality and functionality in bathroom design, enabling proper space for knee clearance and ease of use. Additionally, adhering to this distance helps avoid potential plumbing problems related to installation and maintenance.