The maximum allowed height for a mason's ladder is how many feet?

The maximum allowed height for a mason's ladder is 40 feet. This standard is established to ensure safety and stability when working at heights. Mason's ladders, which are commonly used in construction and masonry work, must maintain certain height limitations to mitigate risks associated with falls. Maintaining a height limit of 40 feet ensures that workers can safely access their work areas while minimizing the potential for accidents.

Other height limits, such as 20 feet, 30 feet, or 15 feet, do not align with the safety regulations and operational practices defined for mason's ladders, which is why they are not the correct choice. The choice of 40 feet reflects an industry standard that balances functionality and safety, allowing workers to complete tasks effectively while adhering to necessary precautions.