What is the minimum width of platforms or walkways on scaffolding before fall protection is required?

The correct answer is based on safety regulations regarding scaffolding. The minimum width of platforms or walkways on scaffolding that necessitates fall protection is established to ensure the safety of workers. In this case, a width of 18 inches is required. This regulation is designed to prevent falls, as falls are one of the leading causes of injuries in construction environments. When platforms and walkways are 18 inches or wider, workers are exposed to a greater risk if they are not adequately protected. Therefore, implementing fall protection measures in these circumstances is crucial to maintaining safety standards and reducing accidents on construction sites.

The other choices reflect widths that are either insufficient for clear safety protocols or exceed common requirements, which may lead to unnecessary complexity regarding safety measures. Compliance with the 18-inch standard is vital for ensuring that scaffolding systems are both functional and secure.