What is the slant side of a cable tray

The slant side of a cable tray refers to the angled portion of the tray's side rail that provides structural support and guides cables along the tray.

In cable tray systems, the side rails form the vertical or angled edges of the tray, supporting the rungs or solid bottom that carry the cables . The slant side is the portion of the side rail that is not perfectly vertical but inclined, often designed to:

• Facilitate cable entry and exit at bends or drop-outs, allowing cables to transition smoothly from the tray to equipment .
• Enhance structural integrity, distributing load more efficiently along the tray, especially in ladder-type trays with rungs .
• Accommodate fittings such as horizontal or vertical bends, tees, and reducers, where the side rail may need to slope to match the tray geometry . In ladder-type cable trays, the slant side is typically part of the I-beam or trapezoidal side rail, which may include pre-punched holes for rungs or accessories . In solid-bottom trays, the slant side can also help shed debris or water when used outdoors, similar to the peaked covers described in ventilated trays . Understanding the slant side is important for installation and load calculations, as the angle affects the tray's bending strength, cable support spacing, and compatibility with splice plates or hold-down clamps . Proper alignment ensures that cables maintain their minimum bending radius and that the tray system meets NEC or IEC standards for safety and performance .