Easy to Install:Our bifold door track is accompanied by a comprehensive guidebook filled with step-by-step directions. Should you opt for a hands-on approach or require expert intervention, our online support team is readily available to guide you through the process, catering to both DIY aficionados and those seeking professional aid. Size Guide:The door thickness is suitable 1" ~ 1-3/4".Install it 4" beyond the door opening, with at least 6" clearance from the door to the ceiling.Each door panel can have a maximum width of 15 inches. Superior Quality: We specialized in sliding doors and hardware for many years. The bi-folding sliding barn door hardware kit can support up to 210 lbs Weight.It is made of Carbon Steel,ensuring durability and reliability. Bifold Door Hardware Package Included:Rail, Rollers, Spacer, hinge, Fixed roller lock bracket, Bottom pivot plate, Sealing Strip, Installation Manual. Perfect for Your House: Our bi folding barn door hardware kit can be used in home interiors, such as study,bathroom,bedroom, or walk-in closet doors. Compared with the classic track,it can save space more space and has more applicable scenarios.