At what angle should non-self-supporting ladders be used in relation to their working length?

The correct angle for using non-self-supporting ladders is obtained by positioning the base of the ladder at a distance from the wall or support that is one-quarter of the working length of the ladder. This angle, typically around 75 degrees to the ground, is essential for ensuring stability and safety while climbing.

When the ladder is set up at this angle, it helps distribute the weight properly and reduces the risk of slipping or falling. Additionally, it allows for effective load distribution on the rungs while providing an appropriate upright support against the wall. Following this guideline aligns with safety standards and best practices for ladder use, ensuring that workers can operate safely and efficiently.

If either a steeper or shallower angle is used, it could lead to increased risk of the ladder tipping over or sliding out from the wall, highlighting the importance of adhering to this specific setup for optimal safety.