39.6"/3.3FT Ceiling Mount Box Rail Hardware Bifold Sliding Barn Door Hardware Heavy Duty Sliding Barn Door Track, Aluminium Alloy Kit for 2 Doors (No Door) 11FT and the rotation axis below

and the rotation axis below is also 18mm（45/64"）

Add Modern Rustic Charm

A: The clearance between door panel and wall is about 5/8"

prevent the bed from swinging and generating loud noise

max Door weight capacity up to 220 lbs

39.6"/3.3FT Ceiling Mount Box Rail Hardware Bifold Sliding Barn Door Hardware Heavy Duty Sliding Barn Door Track, Aluminium Alloy Kit for 2 Doors (No Door) 11FT and the rotation axis belowReference DimensionCeiling mount Bi Folding Barn Door Hardware box rail fit Max door opening width up to 35" and fit door panel total width up to 39" (Max. 19. 5" wide each door); Fit door thickness 1 1. 81(25 46mm); Door height should be floor to ceiling distance minus 84mm(3. 3") (Not included). Heavy Upgraded & Heavy DutyUpgraded aluminum alloy box track and nylon roller, the ceiling mount bifold box rail hanger bearings for barn door up to 330