[Small Space First Choice]: 3FT=36″track, bi-folding door kit won’t take up too much of your living space, just need to leave more than 6″-8 space next to your door opening to meet your needs. Suitable for door thickness:1.18″ 1.77″, the minimum distance from the top of the door to the ceiling is 6.3. [Durability and Weight Capacity]: Bifold barn door hardware kit made of solid steel roller hanger and High strength industrial grade flat tracks hold MAX. 330 lbs door, durable for long life, excellent moisture-proof and rust-resistant. Suitable for closet door, accordion door, pantry door in kitchen, bedroom, dressing room and so on. [Quiet and Smooth Operation]: Super silently wheels which ensures rollers slide smoothly and quietly on the track, makes the bi-fold barn door fully cushioned when closed to protect door and keep safety. [Package Includes]: A folding door hardware kit NO DOOR Panel Splicing 36 track, 2x J-shape rollers, rotating shaft, hinges, all hardware needed for folding door kit are included. Note:Rail Size > door opening width +6.