What is the proper climbing angle for a ladder?

The proper climbing angle for a ladder is 75 degrees because this angle provides optimal safety and stability for users. When a ladder is positioned at this angle, it ensures that the base of the ladder is sufficiently far from the wall or structure it is leaning against, allowing for a secure foothold and reducing the risk of the ladder tipping over. This angle also facilitates easier climbing and descending, as it aligns with the body's natural movement, promoting better balance and control for firefighters and others using the ladder in emergencies.

Ladders set at too steep an angle, such as 85 or 90 degrees, can compromise safety, making it difficult to maintain balance and increasing the likelihood of falls. An angle of 65 degrees may offer better stability but typically makes climbing more challenging and less efficient for ascent and descent, which is critical in firefighting scenarios where speed and safety are paramount. Thus, the 75-degree angle is the widely recommended standard for ladder placement in various emergency situations.