How many PWD toilet stalls are required if there are 20 water closets for male users?

To determine the number of PWD (Persons with Disabilities) toilet stalls required for a given number of male water closets, we refer to building regulations and accessibility standards that guide the design of restrooms. In many jurisdictions, the requirement often stipulates that for every set number of male water closets, a certain number of accessible stalls must be provided to ensure inclusivity and accessibility for individuals with disabilities.

In this case, when there are 20 male water closets, building codes typically require at least one accessible toilet stall to cater to the needs of PWD individuals. This ensures that those who may require assistance or additional accessibility options have adequate facilities available to them. The provision of one stall in this instance is essential for compliance with accessibility laws, making it the correct answer.

It is essential to notice that while additional accessible options might be encouraged in larger facilities, the baseline requirement is typically set at one accessible stall for a reasonable number of total water closets. Hence, the answer reflects adherence to the regulations guiding accessibility in public facilities.