B-Line B22SHA-240SS6 Eaton series strut back-to-back welded channel, 1.62" channel height, 240" channel length, 1.62" channel width, Steel, 12 Gauge, SHA hole pattern, B22 channel type, Stainless steel type 316

It's a back-to-back welded channel, meaning two B22 channel sections joined back to back into one member. That gives you slot openings facing both directions, which is what you want for a trapeze or a freestanding rack where hangers and fittings mount on opposing faces. If you only need to mount to one face, a single-sided B22 channel is the cheaper pick.

Yes. This strut is type 316 stainless steel, which is the grade specified for coastal, chemical, and wash-down environments where plain galvanized or even 304 would pit. Food processing, water treatment, and marine exposure are the usual cases for 316. Pair it with 316 stainless fittings and hardware, though, or the fasteners become the weak point.

The section measures 1.62 inches in height and 1.62 inches in width, which is the standard 1-5/8 inch strut profile. Channel nuts, straps, and clamps built for 1-5/8 inch strut engage the slot the same way here. Because it's welded back to back, overall depth is doubled versus a single channel, so check the throat depth on any post base or beam clamp you're using.

SHA is B-Line's designation for a slotted hole pattern, so the channel comes punched rather than solid. That lets you set hangers and fittings anywhere along the run without field drilling, which is the main reason to buy punched strut for a rack or trapeze build. If you need an unpunched member for strength or looks, order a solid-back channel instead.

It's 12 gauge steel, which is the standard heavy-duty strut thickness used for pipe and conduit trapezes, cable tray support, and equipment racks. Combined with the back-to-back welded section, it's stiffer than a single 12 gauge channel over the same span. Sizing a specific span to a specific load is still an engineering call against the manufacturer's load tables.

Order Eaton B-Line part number B22SHA-240SS6. Reading the code: B22 is the back-to-back channel type, SHA is the slotted hole pattern, 240 is the 240 inch length, and SS6 denotes type 316 stainless. Changing any one of those changes the part, so quote the full designation.

Yes, it's cut to length in the field like any steel strut. One caution with 316: cut and drilled edges lose the passive surface, so clean the cut with a stainless-only wheel or brush and avoid carbon steel tooling that embeds iron and starts rust spotting on an otherwise corrosion-resistant member.