DIY Bifold Door Roller Replacement The bifold roller is the most frequent failure problem in internal folding doors. The issue is easily fixed by using an easy DIY solution. The rollers are made of stainless steel and are resistant to breaking. They are easy to install with the included hardware. https://repairingbifolddoors79804.ziblogs.com/30590118/7-things-about-bi-fold-door-repairs-near-me-you-ll-kick-yourself-for-not-knowing