Residential Building Inspector B1Building Planning and Life SafetyEasy
An inspector is reviewing plans for a new single-family dwelling that includes a bathroom with a water closet. What is the minimum required distance from the center of the water closet to any side wall or obstruction?
- A21 inches
- B12 inches
- C18 inches
- D15 inches
Show answer & explanationAnswer & explanation
Correct answer: D. 15 inches
The IRC mandates a minimum clearance of 15 inches from the center of a water closet to any side wall or obstruction to ensure adequate access and usability.
Why the other options are wrong
- A. This distance is excessive and not the minimum required by code.
- B. This distance is insufficient for proper use and code compliance.
- C. While more clearance is often desirable, 18 inches is not the minimum required by code for this specific dimension.
Water Closet Side Clearance
The IRC specifies minimum clearance requirements for water closets to ensure accessibility and comfortable use, including a minimum distance from the center of the fixture to any side obstruction.
- Applies to water closets (toilets).
- Measured from the center of the fixture.
- Ensures adequate space for user and maintenance.
Memory trick: For the toilet, 'fifteen' inches to the side is keen for hygiene.