Vertical Offsets: Route the tray up toward the ceiling or down toward the floor to cross over or under horizontal obstacles like pipes or steel beams. All illustrations, descriptions and technical information included in this document are provided as indications and can cable trays are equivalent. The mechanical and electrical characteristics, tests, certifications, overall quality management, recommendations mentioned. Calculate horizontal, vertical, or compound cable tray offsets based on bend angle, offset distance, and available installation space. Measure this distance along the straight tray. in this document have been tested extens ompetent professional en completely installed, without damage either to conductors or structural system use maintain spacing or to keep cables in place when the tray is ect the minimum bend ra-dius for cables as they exit the bottom of the cable tray. A. Hubbell's NEXTFRAME® Ladder Tray is the effective and widely used cable runway that supports and delivers bundles of cable between cabinets, racks, and closets, along walls, and suspended from ceilings. The Ladder Tray features light, rugged, tubular steel construction. It is designed for. The distance between trays affects not only the ease of maintenance but also cable protection, heat dissipation, and system stability.