https://theflatearth.win/wiki/....Post:A_Repairing_Bif
Repairing the Bottom of a Bifold Door Bifold doors are fantastic for saving space however they can be frustrating when they begin to bow or scratch against the floor. These problems can be easily solved by making a few small adjustments. If your bifold door is scraping against the floor, it's most likely due to a damaged track or roller that is worn out. The damaged rollers should be replaced. Bottom pivot Over time the pivot pin at the bottom of a bifold door could become loose or even fall