What is the maximum allowable height of a rolling scaffold?

The maximum allowable height of a rolling scaffold is set to ensure safety and stability while working at heights. According to OSHA regulations and industry standards, the height of a rolling scaffold should not exceed three times the narrowest part of its base. This guideline is crucial because a higher scaffold relative to its base width may compromise its stability, increasing the risk of tipping over.

When the scaffold's height is kept to within this limit, it allows for a safer work environment where workers can move, handle materials, and perform tasks without the scaffold becoming unstable. If the scaffold were allowed to rise to four or five times its narrowest base, the likelihood of accidents resulting from instability would increase significantly, making option B the most aligned with safety standards and best practices in scaffold usage.