B-Line Eaton series strut back-to-back welded channel, 1.62" channel height, 240" channel length, 1.62" channel width, Steel, 12 Gauge, B22 channel ty

B22A is a back-to-back welded strut: two B22 channels welded together to form a closed box section with slots facing both directions. A single B22 gives you one mounting face; the back-to-back version gives you two opposed faces and far more stiffness over long spans, which is why it gets used for trapeze hangers, standalone racks, and free-span supports rather than surface-mounted runs. The welded assembly measures 1.62 in by 1.62 in and is formed from 12 gauge steel.

Yes. B22 is a 1-5/8 inch profile channel, and this back-to-back version measures 1.62 in across the face, so it takes the same strut nuts, clamps, pipe straps, and fittings sized for 1-5/8 in channel. Because it is welded back-to-back, you get slots on two opposite faces, letting you land hardware on both sides of the same run.

DURA GREEN is B-Line's green coating applied over the steel channel for corrosion protection in environments harsher than a dry indoor mechanical room. It is the visual giveaway on a job too: if the rest of the building's strut is plain electro-galvanized silver or hot-dip, a green stick will not match. Any field cut or drilled hole breaks the coating, so touch those up.

12 gauge is the standard heavy-duty strut thickness used for structural support work, as opposed to the lighter 14 and 16 gauge material meant for light fixture and small conduit runs. Combined with the back-to-back welded section, that is the configuration specified for trapeze hangers carrying multiple pipe runs and for vertical posts. Load capacity depends on your span and support spacing, so size it off the engineer's load table for the run in question.

Order Eaton B-Line part number B22A-240GRN. The A denotes the back-to-back welded assembly, 240 is the length in inches, and GRN is the DURA GREEN finish. Steel, 12 gauge, 76.4 lb per stick.

None. Unlike a two-piece assembly you bolt together, B22A arrives already welded as one closed section, so there is no gap to shim and no fasteners to torque between the halves. Overall section is 1.62 in by 1.62 in, and the whole 240 in stick behaves as a single member.