What is a crucial feature of a ladder when being used for access?

When using a ladder for access, employing the correct angle is crucial for ensuring safety and stability. The appropriate angle helps to prevent tipping or sliding, which can lead to falls or accidents. Generally, a common guideline is to use a 4:1 ratio, meaning for every four feet of height, the base of the ladder should be one foot away from the wall or structure it is leaning against. This angle provides a stable setup to support the climber's weight and maintain balance while ascending or descending.

While other factors such as the weight, material, and features like anti-slip feet do play significant roles in ladder safety and usability, they do not directly address the fundamental need for a proper angle when positioning a ladder. The angle is essential for the immediate physical safety of the user and is a foundational aspect of ladder use that greatly reduces the risk of accidents.