General description This sliding door hardware kit is perfect for extending the length of your flat sliding door rails. It ensures smooth and quiet operation thanks to internal bearings, while included door stops prevent derailing of the rollers. The rubber gaskets help buffer the bump from rollers, reducing noise. Designed for wider door openings, this barn door track joiner allows you to connect two tracks for double barn door applications. Technical specifications Colour: Black Material: Powder-coated steel Maximum load capacity: 100 kg Sliding rail total length: 427 cm Suitable door size: 107 cm in width, 35-45 mm in thickness Barn door track joiner dimensions: 8 x 3 x 0.4 cm (L x W x T) Distance between the centres of holes: 2 cm Compatible barn door rail size: 40 x 6 mm (W x T) Number of holes: 4 Installation Each rail end needs to be pre-drilled with 2 holes for proper installation. Connect two barn door tracks using the included mounting accessories with the barn door rail