I was concerned that the wooden feet of our fold-down attic ladder were going to scuff our hall floor. Clearly, the ladder needed some shoes. I noticed that turned upside down, rubber doorstops were a perfect fit. Glued to the bottoms of the ladder legs, these rubber shoes keep the ladder from sliding, and they prevent scuff marks. They even come in a two-pack.
Robin Wudtke, Lilburn, GA