The stepladder is a self-supporting portable ladder that is non-adjustable in length, with flat steps and a hinged design for the ease of storage. It is intended for use by one person. A stepladder must not be used unless its base is fully spread open and the spreaders are locked. Stepladders are not to be used as single ladders or in a partially open position.

In order to prevent tipping the ladder over sideways due to over-reaching, the user must climb or work with the body near the middle of the steps. The ladder should be set-up close to the work. Never attempt to move the ladder without first descending, relocating the ladder, and then re-climbing. Do not attempt to mount the ladder from the side or step from one ladder to another unless the ladder is secured against sideways motion.