Ladder trays are prefabricated metal structures that consist of two side rails connected by individual transverse members or rungs. Ladder tray is the most common and the most economical type of tray, also providing maximum ventilation for cabling.These cables have uniform distance among them and contain two longitudinal side rails or rungs, which are welded to the side rails or darted sometimes. This sort of cable tray gives the most extreme ventilation to warm delivering cable like force cables. Generally the length of these tray are 2.5 to 3mtrs For Galvanized steel and 2440mm for aluminium and sizez are 100mm, 150mm, 300mm, 350mm, 450mm, 600mm etc with different Channel & Rung sizez with thickness of 1.6mm, 2.0mm,2.5mm, 3mm so on and so forth.