B-Line B42A-240GRN Eaton series strut back-to-back welded channel, 1" channel height, 240" channel length, 1.62" channel width, Steel, 12 Gauge, B42 channel type, DURA GREEN

Back-to-back welded means two channel sections are joined along their backs and factory welded into one member, so you get a doubled section without field-bolting two sticks together. Use it where a single 1 in deep channel would deflect too much: long trapeze spans, heavier conduit racks, pipe racks. For light single-run conduit or short drops, plain single-sided strut is enough and easier to cut and handle.

DURA GREEN is a painted coating over 12 gauge steel. It holds up in dry interior and normal industrial environments and in covered damp areas. For direct outdoor exposure, wash-down, or corrosive areas, step up to a hot dip galvanized or stainless channel instead. Also touch up any cut ends and drilled holes, since cutting exposes bare steel.

It's 12 gauge steel, which is the standard heavy-duty thickness for structural strut work, as opposed to the lighter 14 and 16 gauge channel used for light framing and signage. Combined with the back-to-back welded section, 12 gauge is what's normally specified for conduit trapezes, pipe supports, and equipment racks. Size the span and load per the engineer's load table for the opening.

Order Eaton B-Line part number B42A-240GRN. The suffix breaks down as B42 profile, 240 in length, GRN for the DURA GREEN painted finish. Same channel in another finish carries a different suffix, so match the finish code when you're standardizing a building on one color.

Yes. The B42A ships as a 240 in length and is cut to size in the field with a bandsaw, chop saw with a metal blade, or portaband. Deburr the cut and prime or paint the exposed edge, because the DURA GREEN coating stops at the cut. Keep in mind the 240 in stick weighs 58.72 lb and needs a truck or van long enough to carry it uncut.