What is the recommended angle when positioning a ladder against a wall for safety?

Positioning a ladder at a 75-degree angle against a wall is considered the safest practice for ensuring stability and preventing falls. This angle allows for optimal weight distribution between the ladder and the surface it is resting against, making it less likely to slip. A ladder set at this angle is also easier to climb and descend, as it provides a comfortable and secure footing.

When a ladder is too steep, as it would be at a 90-degree angle or close to vertical, the risk of tipping over increases significantly because it does not allow for proper distribution of weight and forces. Conversely, an angle that is too shallow, like 60 degrees, could lead to the ladder losing its grip and sliding away from the wall, which can also be hazardous. An angle of 45 degrees is equally insufficient for providing the needed stability and safety while in use. Thus, the 75-degree angle is a well-established safety standard that strikes a balance between accessibility and stability when using a ladder.