Use this reference table to quickly identify approximate weights per meter for various standard cable tray configurations. Sizing assumes standard industrial designs in galvanized steel and aluminum. Actual weights vary by manufacturer, perforation pattern, rung spacing . Divide the total weight by the tray length to obtain the weight per meter. Results are. The calculator require the user to input information regarding the width of the tray, depth of the tray, the number of cables that will be installed, and the distance between supports. An average load is 75 kg/m (165 lbs/ft). 150 mm (6"), 203 mm (8"), 300 mm (12"), 450 mm (18"), 600 mm (24"), 750 mm (30"), 900 mm (36"), 1067 mm (42"). 5"), 152 mm (6") 160 mm. Cable tray support quantity can be calculated using a simple formula: Support Quantity = Total Length ÷ Support Spacing + 1 20 ÷ 2 + 1 = 11 supports In a typical project, a 20-meter cable tray with 2-meter spacing requires 11 supports.
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