What is the maximum allowed height for a three-section metal extension ladder?

The maximum allowed height for a three-section metal extension ladder is typically specified by safety regulations and manufacturer guidelines. For a standard three-section metal extension ladder, the maximum height is often recognized to be around 60 feet. This height allows for sufficient reach in various construction and maintenance tasks while ensuring safety and stability.

The design and construction of these ladders, including their material and structural integrity, allow them to safely support users at this height. When using an extension ladder, it's crucial to follow the manufacturer's specifications along with safety practices, such as ensuring proper angle and securing the ladder before climbing. This understanding highlights the importance of adhering to set standards for ladder use to maintain safety on the job.

While other choices suggest lower heights, they do not reflect the maximum height allowed for three-section extension ladders as commonly accepted within industry practices.