Classic Strap Bypass Barn Door Hardware Kit by Dusty's Rustic Rolling Doors With its traditional hanger style, the Classic Strap Bypass Barn Door Hardware Kit goes well with almost any style of sliding door.  A bypass kit uses two rolling doors and two tracks instead of one. The outside track is cantilevered in front of the first track so that the doors roll in front and behind each other. Bypass kits are typically used when there is insufficient wall space to the right and/or the left of the wall opening. This is a barn door hardware kit and does not include doors. We do sell barn doors and they can be found on the Barn Door Collection Page.