DIY Bifold Door Roller Replacement The bifold roller is the most common failure problem in internal folding doors. A simple DIY solution can be found to fix the issue. The rollers are made of stainless steel and are impervious to breakage. They are simple to install using the supplied hardware. https://bi-fold-door-repair92902.yomoblog.com/36822143/5-tools-everyone-in-the-bi-fold-door-repairs-near-me-industry-should-be-making-use-of