When installing a water closet, how much clearance must be provided to adjacent walls or fixtures?

When installing a water closet, a clearance of 18 inches from adjacent walls or fixtures is necessary to ensure comfort and accessibility for users. This dimension is established in plumbing codes to provide adequate space for maintenance, cleaning, and to allow individuals to utilize the facility without constraints. It is essential to create a safe and functional environment in any restroom setting, and the 18-inch clearance also helps accommodate varying user sizes and assistive devices, if applicable. This measurement helps to promote good plumbing practice and aligns with accessibility guidelines, ensuring that the installation meets both safety and user comfort standards.