How wide is the angle iron for cable tray support

Angle iron for cable tray support typically ranges from 20 mm to 200 mm in width, depending on load requirements and design specifications.

Standard Dimensions

Angle iron used for cable tray support comes in equal-leg and unequal-leg configurations. Common widths for equal-leg angles range from 20×20 mm up to 200×200 mm, while unequal-leg angles can range from 25×16 mm to 200×125 mm. Thicknesses vary from 3 mm to 20 mm, allowing customization based on the weight of the cable tray and environmental conditions . For example, a slotted angle iron designed for universal cable tray support may have slots measuring 7×30 mm along one side, with lengths up to 3 meters . Another practical example is a wall angle support kit with dimensions 32×2×2 inches, suitable for medium-duty cable tray installations .

Selection Considerations

• Load-Bearing Capacity: Wider and thicker angle irons provide greater structural stability, especially for heavy cable trays or long spans .
• Installation Environment: Hot-dip galvanized or stainless steel angle irons are preferred in corrosive or outdoor environments to ensure longevity .
• Customization: Many manufacturers offer custom lengths and widths to meet specific project requirements, including perforated or slotted designs for flexible mounting .

Practical Advice

When selecting angle iron for cable tray support, consider the span between supports, total cable weight, and environmental factors. For light-duty installations, smaller widths (20–50 mm) may suffice, while industrial or high-voltage applications often require larger widths up to 200 mm with thicker steel for enhanced strength . By matching the angle iron width and thickness to the load and installation conditions, you ensure safe, stable, and durable cable tray support.