[Reminds]: 40" track fit up to max two 19-1/2" wide door panels; Fit door thickness: 1-3/16"~ 1-3/4"(30mm~45mm); Bearing capacity: 330LBS(150KG); at least 4-3/4" clearance needed from top of door and ceiling.
[Heavy-Duty Structure]: Box rail bifold sliding barn door hardware kit is made of upgraded heavy steel, with black powder coated surface to prolong service life, and the quality of upgraded screws is emphasized to ensure the bearing capacity of door panels.
[Package Includes]: 40"X Splicing box rail; 2x Track Connector; 6x Wall Anchors; 2x Roller; 2x hanger; 2x Door stop; 2x End cap; 1x Floor guide; all barn door hardware kit box rail needed are included. NO DOOR PANEL.
[Installation]: We povided step-by-step graphic&Text installation manual is attached to the package; Install video; Professional online installation guidance.
[IMPORTANT]: There are many parts in the package, and the assembly process may be confused. Please let us know that we will provide the best solution to help you install smoothly.