The material of hanger is stainless steel, rail is made of high quality space aluminum nickel plating. Effective waterproof and rust-proof for long time use. Max Door weight capacity is 220 lbs. Adjustable roller screws fit Door Thickness from 1.37″-1.57″(35-40mm). Unique upgrade spring damping door stopper makes no sounds when opening and closing doors, minimize the impact to track. The keel in the track make the structure more stronger. Adjustable wall attachment can match any distance hole stud. Intimate 24-hour online customer service. Ngle Door Track Kit. 2 PC (1 PAIR). 4 PC (2 PAIR). How to Choose the Correct Track Size? Door Min Track Size= 2 × Single Door panel Width. Example: For a 36″/3FT door, recommend you choose a 72″/6FT track at least. Door Min Track Size= 4 × Single Door panel Width. Example: For a 36″/3FT door, recommend you choose a 144″/12FT track at least. Tip: If you have enough space you can also choose the longer track size. The aviation aluminum track with decorative chrome plating, wall thickness is up to 2mm. The track adopts mechanical design, add keel support in the middle, through strict test can strongly support weight. Add anti-falling wheel on the roller. Can effectively prevent the roller hanger from falling off during sliding. The head of the door stopper is nylon arc. Perfect fit with roller pulley radian, reducing noise.

4-20FT Sliding Barn Door Hardware Kit Single Double Doors (NO DOOR). Material: Track– Carbon Steel, Black Roller–High quality steel wheel material–Premium nylon Door Max Weight Capacity: Up to 330lbs every pair rollers Fits sliding Door Thickness: From 1 3/16″ to 2″ The top of the Doors to the ceiling : Min distance is 6. Package Includes: SINGLE DOOR. Spliced rail with pre-drilled holes. Wall hangers+ Track Screws + Wood plugs (according the track holes quantities). Install instruction: x1 DOUBLE DOOR. Only sliding door hardware kit. Don’t include the Door. How to Choose Track Size. Track’s length should be twice of door panel’s width (like your door width is 2FT, You will need 4FT hardware Kit). Single door= 2 X single door panel width (Like your door width is 3FT, you will need 6FT length kit) Double door= 4 X single door panel width (Like your door width is 3FT, you will need 12FT length kit).