Folding doors are especially useful in areas where you simply don't have the room to swing open a full door. Places like closets, basement doors, kitchens, and other tight spots make an ideal location for a folding door. These types of doors have been around for a surprisingly long time. Guy E. Dixon founded a company in 1953 and placed the first patent on a wood folding door. From there, his company continued to make folding doors of varying types.