What is the minimum ladder ratio recommended for safety?

The recommended minimum ladder ratio for safety is 4:1. This ratio refers to the angle at which a ladder should be placed against a wall or structure. For every four units of height that the ladder reaches, the base should be one unit away from the wall. This 4:1 ratio ensures that the ladder is stable and reduces the risk of it tipping over while in use.

Using this ratio helps maintain a secure footing for the ladder, preventing accidents caused by leaning too far forward or backward. It promotes a safe working environment by minimizing the likelihood of falls, which are among the most common accidents in construction and maintenance work.

Although a 3:1 ratio might seem reasonable, it does not provide the same level of safety and stability offered by the 4:1 ratio. Safety standards in various health and safety regulations emphasize this ratio to ensure that ladder use remains safe across different scenarios.