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Basic strut steel channel comes in the open box section, 1 5/8 by 1 5/8 inch square cross section. A half height (1 5/8 inch wide, 13/16 inch tall) cross section version is also available, used mostly where mounted directly to a wall as it has significantly less stiffness and ability to carry loads across an open space or brace. A deep channel 2 7/16 inches tall and 1 5/8 inch wide is also manufactured.
The material used to form the C steel channel is typically 12 gauge (0.1046 inch) or 14 gauge (0.0747 inch) thick sheet metal.Several variations are available with different hole patterns for mounting to walls and supports. Solid channel has no holes predrilled, and must either be drilled on site or mounted in another fashion. Punched channel has round holes, large enough for 5/8 inch threaded steel rod or bolts, punched in the top of the channel at regular 1 7/8 inch centers. Half-slot channel has short, rounded end rectangular slots punched out on 2 inch centers. Slot channel has longer slots on 4 inch centers.
In addition, shapes are manufactured with two lengths of channel welded together back to back, or three or four welded together in various patterns, to form stronger structural elements.An overhead electrical wire hanger manufactured from two lengths of strut channels and two lengths of threaded rod.A length of standard half-slotted strut channel used as a brace, connected to a length of half-channel mounted directly to a wall, joined with a purpose-built channel connecting steel angle.A shelf supporting electrical conduit and pipe, manufactured from strut channel
Steel channels are used to mount, brace, support, and connect lightweight structural loads in building construction. These include pipes, electrical and data wire, mechanical systems such as ventilation, air conditioning, and other mechanical systems. Strut channel is also used for other applications that require a strong framework, such as workbenches, shelving systems, equipment racks, etc. source:news njwanze
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