5FT Heavy Duty Black Steel Box Rail Sliding Barn Door Hardware. Only hardware for sale, door panel is not included. The kit can be used for interior door and outside door. 5FT box track1+Box track bracket2+End cap2.Rail holder's location for reference. Wooden plank required for installation. The gap between door and wall is super small. The wooden plank can creat the space and prevent the door from rubbing against the wall. Plank width:5 1/8";Thickness:1/2" for reference. If you have thick baseboard or door frame, please also count them in. The item "DIYHD Smooth Black Box Rail Hardware Heavy Duty Steel Sliding Barn Door Track" is in sale since Monday, December 10, 2018. This item is in the category "Home & Garden\Home Improvement\Building & Hardware\Doors & Door Hardware\Other Door Hardware". The seller is "sliding-barn-door" and is located in Carol Stream, Illinois. This item can be shipped to United States.