CCJH 182CM/6FT Ceiling Mounting Sliding Door Track Barn Door Hardware Kit Closet Rail Accessory Box Track Hidden RollerItem Size182CM 6FT Sliding Door Hardware Kit, (Suitable Max door width is 3FT 91CM), Rail width 4cm, Thickness: 0. 55cm, *Give an Adjustable Floor Guide* Strong bearing capacityAviation grade aluminum guide rails, rigid plate like structure,he maximum door weight is 150kg, the surface is black painted to prevent corrosion; Easy to installSimple installation manual, step by step detailed instructions, accurate measurement, you can easily install it;