When evaluating the cable tray installation cost per meter, several critical factors need to be considered. Cable trays are vital in electrical installations, providing secure pathways for power, communication, and control cables across residential, commercial, and. Due to the ratio of ladder tray's bulk to its weight, the freight costs for tray are higher than other metallic products. If scheduling permits, freight costs for ladder tray can be greatly reduced if shipped with other project items (e. Ocean going shipments should be transported via. 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. This Wall Angle Support, LWASK24BLK item fits 24. 00 with a material of Steel color Black. KIT 6IN- CLEAR At City Electric Supply, we provide a versatile selection of angle brackets designed to offer strong, durable, and reliable mounting solutions for electrical, mechanical, and construction applications. But the actual price is the cash outlay to the workers to assemble the parts.