A steps stool, though sharing some design concepts like the treads or steps with the step ladder, is more of a stool than a ladder. It is smaller, lighter and unlike your ordinary stool, most of them come in different shapes, with hinges connecting their foldable sections. Steps stool consists of one to three steeps. In terms of size, the step ladder is often bigger than the stool, as it is meant for accessing higher areas as compared to the stool that is mostly used indoors to reach cabinets and shelves. The step stool will only work best in households and other indoor spaces.