For horizontal sections where cable trays are laid out in a straight line, the typical support span (distance between supports) should range from 1. This range allows for easy access and efficient maintenance. On average, they cost from around ₱1,310. Below are industry-standard tray and ladder dimensions used globally, based on typical installations and in alignment with IEC 61537:2016 and manufacturer catalogs. Several factors influence the maximum span length of a cable tray: 1. Since the support distance prevents any discernible sagging of the small cables between rungs, this spacing is ideal for the small diameter Type PLTC and TC cables.