Racking Extension Top - Plain Galvanised Metal Shelf - High/Medium Roof VehiclesRacking Extension Top Plain Galvanised Shelf Single This can be added to any van racking unit making the combined racking unit 1340mm high. Suits medium and high roof vehicles. Two height options available giving a combined height of either 1340mm or 1690mm. Four shelf type options Standard duty grey, XL3 part bin shelf, Storetidy red and plain galvanized. EXTENSION DIMENSION. 975 length x 270 depth x 260 high. Tray 1. 2mm mild steel with red powder