What must a ladder have if it is intended for use?

A ladder intended for use must have safety spurs or safety feet to ensure stability and prevent slipping during use. These safety features are designed to securely anchor the ladder to the ground, enhancing its overall safety when standing on it or while climbing. The spurs or feet help to distribute the weight evenly and provide a larger base of support, which is particularly critical when the ladder is placed on uneven or slippery surfaces. This is paramount in avoiding accidents and injuries associated with ladder use.

While other features such as safety spikes, rubber ends, and non-slip grips might contribute to the functionality and safety of a ladder, they do not specifically address the fundamental need for a stable and secure footing for the ladder. Safety feet are specifically designed for this purpose, making them essential for safe and effective ladder use.