This ladder is exactly what I wanted . I need the side rails to step up and down safely. It is easy to use and not too large to stash in a closet. The screws, however, are another matter. They are made cheaply, with alloy metal, and do not secure the parts as tightly as they should. And they will probably strip in just a few years. Also, because they aren’t perfectly tight, the ladder has a little wobble - not what you want in a safety ladder.