What is the minimum height requirement for the lettering on restroom doors indicating "Men's" or "Women's"?

The minimum height requirement for the lettering on restroom doors indicating "Men's" or "Women's" is set to ensure clear visibility and accessibility for all individuals, including those with disabilities. Two inches is the standard height that provides sufficient readability from a distance, making it easy for people to identify the restrooms without excessive strain. This guideline aligns with accessibility standards, ensuring that signage is appropriately sized for all users.

While options like one, three, or four inches may seem plausible, they either do not meet the necessary readability standards or exceed the requirement without practical justification. The two-inch standard strikes a balance between visibility and functionality, making it the correct choice in compliance with applicable plumbing and building codes.