DIY Bifold Door Roller Replacement The bifold door roller is a common problem in internal doors that are light-weight. A simple DIY fix is available to fix the problem. The rollers are made of stainless steel and are impervious to breakage. They are easy to install with the included hardware. https://bi-fold-door-repairs69242.blogoscience.com/36619885/it-is-the-history-of-bi-fold-door-repairs-near-me