When is the use of a double cleated ladder necessary?

The use of a double cleated ladder is necessary when there are more than 25 workers on a level because it facilitates safe access for multiple workers. This type of ladder allows two workers to climb and descend simultaneously, which can help prevent congestion and delays in busy work areas. When the workforce exceeds a certain number, maintaining efficiency and safety in personnel movement becomes critical, and a double cleated ladder effectively manages the flow of workers on-site.

In contrast, the other options do not align with the specific safety regulations regarding double cleated ladders, which focus more on worker density rather than height, load, or the number of materials being handled. Therefore, it’s essential for compliance with safety standards to utilize equipment like double cleated ladders in scenarios that require heightened safety and accessibility due to a larger workforce.