B-Line Eaton series strut channel, 1.62" channel height, 120" channel length, 1.62" channel width, Aluminum, 12 Gauge, B22D channel type

It is 12 gauge material in the 1-5/8 inch B22 profile, so hardware built for 1-5/8 inch strut, spring nuts, channel nuts, clamps and post bases, seats in the channel lip as normal. Pair aluminum channel with stainless or plated hardware if the run is outdoors.

It is solid aluminum rather than painted or plated steel, which is why people specify it for exterior runs, rooftops, wash-down areas, water treatment and coastal sites where steel strut rusts at every cut end. Aluminum also will not need field touch-up paint after you cut it.

38 lb per 120 inch stick. That is what makes aluminum strut worth the money on overhead work: one person can handle a full length up a ladder or on a lift, and it cuts the dead load you hang off a deck or joist compared with steel of the same profile.

B22 is the 1-5/8 by 1-5/8 channel profile. The D designation is the back-to-back double configuration of that section, so you get two channel openings instead of a single channel with a solid back. Order it where you want to run trapeze members or fittings off both faces of the same piece.

Pick aluminum, as with this 12 gauge B22D, when corrosion or handling weight drives the job: exterior, damp or chemical environments, and long overhead runs where a 38 lb stick beats a much heavier steel one. Steel strut is the usual choice indoors on dry mechanical rooms and where the loading is heavy, since steel of the same 1-5/8 profile carries more. Match your fitting material to whichever you choose.

Yes. It ships as a 120 inch stick and is cut to size in the field like any strut. Aluminum cuts cleanly with a chop saw and a non-ferrous blade, and unlike painted steel the cut end does not need priming or cold galvanizing.