B-Line Eaton series strut fiberglass channel and fittings, 1" channel height, 240" channel length, 1.62" channel width, Polyester resin, SH hole patte

It is fiberglass, made from polyester resin rather than steel or aluminum. That is the reason to specify it: polyester resin channel is non-conductive and does not rust, which is why it gets used in wash-down areas, water and wastewater plants, chemical rooms, coastal and other corrosive environments where galvanized steel strut gives up. If your support run is indoors and dry, plain steel strut does the same job.

The channel opening is on the 1.62 inch (1-5/8 inch) standard strut width, so fittings and channel nuts sized for standard-width strut engage the lips. What changes with the 1 inch height is depth: a shallow channel has less room behind the nut than a 1-5/8 inch deep channel, so hardware intended for the deeper profile may not seat. In corrosive installs, order fiberglass or stainless fittings rather than plain steel, otherwise the fittings corrode before the channel does.

SH is the slotted hole pattern, meaning the channel back is punched with a repeating slot series along its length rather than being solid back. Slots let you bolt the channel to structure or join to fittings anywhere along the run without field drilling, which matters on fiberglass since drilling exposes raw resin and fiber. If you want an unpunched back, that is a different hole pattern designation, not SH.

Yes, it ships as a 240 inch stick and is cut to length in the field like any strut run. Because it is polyester resin with glass reinforcement, cut it with an abrasive or carbide blade, wear respiratory and eye protection for the dust, and seal or cap the cut ends so the exposed fiber is not left open in a wet or chemical environment.

Order Eaton B-Line part number BFP42SH-240. The number breaks down as the fiberglass polyester channel series, SH slotted hole pattern, in the 240 inch length. It is a single configuration, so there are no finish or size options to specify with it.