Types Of Strut Fittings, Size, and Material Used

Strut channels are the materials used to give structural support for wires. These channels are mostly used in HVAC applications—heat ventilation or air conditioning—where the equipment is hung from the ceiling or roof. A long metal sheet is bent and folded to form a U-shaped strong electrical strut channel. It has its edges inside-out and faces others, which results in a groove formation over the top of the device. As a result, the installers can interlock the parts together or fix them into the channel using nuts, bolts, and fasteners.

Fittings For Strut Channel

Struts and channels cannot be fitted without the use of supplementary strut fittings and accessories. To finish the strut system and to provide structural support, the strut suppliers produce a wide range of fittings. There are a variety of fittings available depending on how installers want to create the strut channel or put it together for a light building framework. The popular fittings are-

Small right-angle brackets

Installers can join two strut parts at a 90° angle with the use of little right-angle brackets. But there are other brackets available at various angles that can be used for a wide range of supports and building techniques.

Straight brackets

Straight brackets are also available to link two pieces of strut together if a longer length is required. For further stability, flat right-angle electrical strut joints can also be reinforced by flat corner brackets.


A number of washers are available to help maintain stability and the integrity of the grounding path while providing additional support and reducing vibration and noise.

Strut U-bolt beam

If necessary, strut channels can be hung from a ceiling using threaded rods and couplings, or they can be attached to beams and other parts of the building with strut U-bolt beam clamps.

Size Of Strut Fittings

There are many different sizes, shapes, and finishes available for the strut channels and fittings to make the struts meet the needs and standards of the various types of installations. As a result, several manufacturers use a variety of materials to build struts that are strong enough for a variety of purposes.

Material of Strut Fittings

In order to prevent rust, struts are usually made of stainless steel. Struts made of fiberglass offer protection from corrosive environmental elements.

Installers prefer stainless steel struts for routine architectural or construction projects. They are built from a single long sheet of steel and usually have a galvanized finish, as well as zinc coatings, epoxy, powder coating, paint, etc. Zinc coating gives the stainless steel a long and robust life by shielding it from rust, corrosion, and other types of external damage.

Sometimes manufacturers use aluminum alloy to make struts when weight is a major concern.


Electrical strut channels and fittings are used in design and construction projects regardless of the type of equipment that needs a support system in the building. To offer that structure strong support and allow it to stay in its position for a lot longer, installers need to make the right selection of strut channels and proper fittings.