What angle should a ground ladder be positioned for optimal safety?

For optimal safety when positioning a ground ladder, the correct angle is 75 degrees. This angle ensures that the ladder maintains a balance between stability and reach, providing the best access to upper levels while minimizing the risk of slipping or tipping over.

At 75 degrees, the ladder’s foot is sufficiently away from the base of the structure to create a sturdy and secure platform for firefighters to climb, while also allowing for safe and efficient ascent and descent. Positioning the ladder at this angle enables users to maintain three-point contact—two hands and a foot or two feet and a hand—while climbing, which is critical for safety.

Ladders positioned at angles that are either too steep or too shallow can greatly increase the risk of accidents. For instance, a ladder set at 90 degrees may lead to instability, making it easy for someone to fall off due to the extreme vertical angle. An angle of 60 degrees would not provide enough stability for safe climbing, and a 45-degree angle could make it difficult to reach the intended height. Therefore, the 75-degree angle strikes the right balance for effective and safe ladder use in emergency situations.