Bi-fold doors have long been a staple of homes because they are lightweight, inexpensive, and can be installed by one person. While they are not designed for privacy or to keep out intruders, they do an excellent job at providing one basic service: covering areas that you would prefer not to see, such as laundry nooks, pantries, closets, and general storage areas.
Most bi-fold doors are installed with hardware kits that may come with the door but often are sold separately. A standard kit includes:
- A door track with mounting screws, a spring-loaded stop, and pivot guide
- A pivot bracket for the bottom of the door
- A solid pivot pin for the top of the door on the side that doesn’t open
- A roller pin with a nylon wheel on it, for the top of the door on the side that does open
- An adjustable pivot pin that fits into the bottom pivot bracket, on the side that doesn’t open
Source: The Spruce