About These Items:Durable Carbon Steel Construction â This sliding barn door hardware is built with solid carbon steel and coated with a fine black powder finish for excellent anti-corrosion and durability over time. It ensures long-lasting performance while adding a sleek touch to your space.Smooth and Quiet Operation â High-density silent pulleys featuring dual-bearing construction guarantee smooth and ultra-quiet sliding motion, ensuring a peaceful environment while preventing any damage or scratches on the door rail.Flexible Door Fit â The sliding door hardware accommodates a wide range of door thicknesses (1.3"â1.8") and widths (3.7-4.3FT for single doors and 3.7-4.3FT total for double doors), making it an ideal choice for most standard doors.Easy Installation â Includes all necessary hardware and an easy-to-follow manual, making the installation process straightforward and hassle-free. The system is designed for both single and double doors, offering flexibility in setup.Space-Saving Design â, 2-section tracks design saves valuable space above the door while ensuring stability and safety during operation, perfect for both residential and commercial settings.Key Differences:Door Type:8ft J-Shaped Sliding Kit: Suitable for single doors (3.7-4.3FT width).10ft J-Shaped Sliding Kit: Suitable for single doors (4.6-5.2FT width).8ft J-Shaped Kit (Double Doors): Suitable for double doors (3.7-4.3FT total width).10ft J-Shaped Kit (Double Doors): Suitable for double doors (4.6-5.2FT total width).8ft I-Shaped Kit: For single doors (3.7-4.3FT width).10ft I-Shaped Kit: For single doors (4.6-5.2FT width).8ft I-Shaped Kit (Double Doors): For double doors (3.7-4.3FT total width).10ft I-Shaped Kit (Double Doors): For double doors (4.6-5.2FT total width).Track Length:J-Shaped Kits: Available in 8ft and 10ft lengths, tailored for both single and double doors.I-Shaped Kits: Available in 8ft and 10ft lengths for both single and double door configurations.Weight Capacity:All kits support up to 330 lbs for smooth and reliable operation.Installation Kit:Single Door Kits: Includes 2 tracks, 2 hangers, 2 anti-jumpers, 2 door stoppers, and necessary washers and screws.Double Door Kits: Includes 4 hangers, 4 anti-jumpers, and 4 door stoppers for enhanced support.Specifications:Item Model Numbers:8ft J-Shaped Single Door: 004-2.44M10ft J-Shaped Single Door: 004-2.44M-D8ft J-Shaped Double Door: 004-3.0M10ft J-Shaped Double Door: 010-3.0M8ft I-Shaped Single Door: 004-2.44m10ft I-Shaped Single Door: 010-2.44m-D8ft I-Shaped Double Door: 004-3.0m10ft I-Shaped Double Door: 010-2.44m-DMax Loading Bearing: 330 lbsNet Weight:J-Shaped Single Door 8ft: 14.8 lbsJ-Shaped Single Door 10ft: 17.3 lbsJ-Shaped Double Door 8ft: 18.7 lbsJ-Shaped Double Door 10ft: 16.8 lbsI-Shaped Single Door 8ft: 14.4 lbsI-Shaped Single Door 10ft: 16.8 lbsI-Shaped Double Door 8ft: 18.1 lbsI-Shaped Double Door 10ft: 17.9 lbsProduct Dimensions:8ft Kit: 96.1'' x 1.5'' x 0.2'' / 2440 x 39.24 x 5.6 mm10ft Kit: 118.1'' x 1.5'' x 0.2'' / 3000 x 39.13 x 5.6 mmFit Door Thickness: 1.3"â1.8" / 32â45mmFit Door Width:Single Doors: 3.7â4.3FT (8ft kit) and 4.6â5.2FT (10ft kit)Double Doors: 3.7â4.3FT (8ft kit) and 4.6â5.2FT (10ft kit)Main Material: Carbon SteelPackage Contents:2 x 4FT Sliding Barn Door Tracks (for single doors) or 2 x 5FT Sliding Barn Door Tracks (for larger widths)2 x J or I Shape Hangers (depending on the kit type)7 x Plastic Washers2 x Anti-jumpers (for single door kits) or 4 x Anti-jumpers (for double door kits)2 x Door Stoppers (for single door kits) or 4 x Door Stoppers (for double door kits)1 x Floor Stopper7 x Guide Rail Gaskets7 x Plastic Rods Ï10 x 2"2 x Plastic Rods Ï5 x 1"1 x Installation Tool1 x Set of Assembly Screws1 x Instruction Manual