CALHOME 51 in. Black Double Bi-Fold Top Mount Sliding Barn Door Track and Hardware Kit Comes with 4 rollers to hang 4-door leaves (2 bi-fold style door), each single door leaf (slab) shall not exceed 11-5/8 in. in width, 84 in. in height, and 1-3/8 in. in thickness Door hinges are included to easily connect 2 single door leaves (slabs) into 1 bi-fold style door Compared to sliding doors and swing doors, bi-fold doors can open up a wider space while saving 50% of floor space (swing-space) Weight capacity: 360 lbs. Track size: 51 in. Width x 1-1/2 in. Height x 1/4 in. Depth Package includes: 1x tracks, 5x spacers, 5x screws, 2x adjustable top mount rollers, 2x fixed top mount rollers, 2x floor guides, 6x hinges Track and hardware only, door is not included