Step Ladders have evolved to be sturdy enough and small enough for them to be a household mainstay. We all have to use a step stool or a step ladder, for example, to get something from a height. Need to get something from a high cupboard? Then a step stool will do. If you need a ladder for more reach, you need a folding step ladder, to dust the chandelier, for example. The platform ladder uses a high platform where you can, for example, set down tools or paint cans. There are even ladders that can serve multiple functions. These combination ladders can be used a step ladder and a stairway ladder.