Door Locks & Handles. UK Barn Door Hardware. Bypass For 2 Doors. Bypass For 4 Doors. CCJH Sliding Barn Door Hardware Closet Track Kit 4FT-20FT For Single/Double Door. All of our products comply with strict quality control and advanced technology makes CCJH Sliding Barn Door Hardware more reliable. Material: Carbon Steel Door weight capacity: 220lbs Sliding Length: 4ft-16ft for your choose The top of the Doors to the ceiling : Min distance is 6.7″ Suitable Door Panel Thickness: 1 1/4″ to 1 7/8 inch. 1Adjustable Roller hanger screws(from 3cm to 5cm), You can adjust the screw to the most suitable thickness for your door 2Rubber accessoriers & Spring door stops, has buffering effect when sliding door, reduce noise. How to choose track size. 1 2 x Rollers. 2 Wall Hanger Set (1 rail hole need 1 set). 3 2 x Door Stops. 4 4 x Adjustable roller screws. 5 2 x anti-jump blocks. 6 1 x floor guide. Note: Only the sliding door kit for sale, door is not include. 1 4 x Rollers. 3 4 x Door Stops. 4 8 x Adjustable roller screws. 5 4 x anti-jump blocks. 6 2 x floor guide. 1 Single Door Min Track Size= 2 × Single Door panel Width. Double Door Min Track Size= 4 × Single Door panel Width. Any questions please tell us, Our customer service will help you within 24 hours.