DIY Bifold Door Roller Replacement The bifold door roller is a frequent problem in internal doors with light weights. A simple DIY fix is available to solve the issue. The rollers are made of stainless steel and are resistant to breakage. They are simple to install with the included hardware. https://bi-folddoorrepair05312.blog5star.com/30907305/15-shocking-facts-about-bi-fold-door-repairs-near-me