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Repairing the Bottom of a Bifold Door Bifold doors are great space-savers however, they can be frustrating when they begin to bow or scratch against the floor. These issues are easily fixable by making a few minor adjustments. If your bifold doors are scraping on the floor, this is likely due to a damaged track or worn roller. The solution is to replace the damaged rollers. Bottom pivot In time the bottom pivot can loosen or even fall off. This usually happens due to cracks or a broken wood piece where the anchor and pivot pin is located. If you're e