Slotted Channel Guide: Sizes, Types, Finishes and Uses

What is a slotted channel?

A slotted channel is a cold-formed C-shaped steel profile with inturned lips and a row of slots along its back. Channel nuts slide inside the lips and lock against them, so brackets, clamps and threaded rods can be bolted anywhere along the length. This makes it quick to build adjustable support systems on site, without welding.

Common slotted channel sizes

Wall thickness is commonly in the range of about 1.5 mm to 2.5 mm, and lengths of 2 m, 3 m and 6 m are common. Exact dimensions vary by manufacturer, so confirm them when ordering.

Types of slotted channel

•  Slotted: continuous slots for maximum adjustability
•  Half slotted: slots on part of the length or a smaller slot pattern
•  Plain: no slots, for a cleaner look or drilled-to-suit fixing
•  Back-to-back (double): two channels joined for strength

Finishes and where to use them

Not sure about GI and MS? Read our guide to the difference between GI and MS.

Common applications

•  Electrical cable tray and conduit supports
•  HVAC duct and chiller pipe supports
•  Plumbing and fire-fighting pipe hangers
•  Solar panel mounting structures
•  Equipment frames, racks and wall brackets

Accessories used with slotted channel

•  Channel nuts (spring nuts) in M6 to M12 sizes
•  Threaded rods and hex nuts for drop supports
•  Brackets, angle cleats and base plates
•  Beam clamps for fixing to steel beams without drilling
•  Pipe clamps and end caps

How to choose the right slotted channel

•  Load and span: heavier loads or longer spans may need a thicker or back-to-back channel
•  Environment: GP indoors, HDG or stainless outdoors and in corrosive areas
•  Accessories: make sure nuts, brackets and clamps match the channel profile
•  Length: order standard lengths and cut on site, or ask for cut pieces

Slotted channel vs slotted angle

Slotted angle is an L-shaped perforated section mainly used for shelving and racks. Slotted channel is a C profile with lips that accept channel nuts, designed for adjustable support systems.

Buying slotted channel in Bangalore

Hakimi Industrial Suppliers, 2nd floor, 178, Sadar Patrappa Rd (S.P. Road), Bengaluru, handles enquiries for slotted channel, threaded rods and fasteners. Call or WhatsApp 97397 55252.