B-Line B12SH-240HDG Eaton series strut channel, 2.43" channel height, 240" channel length, 1.62" channel width, Steel, 12 Gauge, SH hole pattern, B12 channel type, Hot-dipped galvanized

It is the deep profile. The B12 channel measures 2.43 in high by 1.62 in wide, which is the 1-5/8 by 2-7/16 inch strut size, not the shallow half-height 1-5/8 by 13/16 profile. Standard 1-5/8 inch strut nuts, clamps and fittings seat in the 1.62 in slot opening the same way either profile, so hardware selection follows the 1-5/8 series.

Yes. The steel is hot-dipped galvanized, which is the finish used for exterior runs, rooftops, parking structures and damp mechanical or wash-down spaces. Plain or pre-galvanized strut is the indoor-dry option; HDG is what you want where the run sees weather or moisture. Cut ends should be field-coated, since cutting exposes bare steel.

Yes. At 1.62 in channel width this is the 1-5/8 inch strut series, and 1-5/8 inch strut nuts, clamps and fittings are dimensionally interchangeable across the major strut brands. What does not cross over is depth-specific hardware such as back-to-back or closure strips sized for the shallow 13/16 profile, since this channel is 2.43 in deep.

SH is the slotted-hole back pattern, so the channel back is perforated along its length rather than solid. That lets you through-bolt to structure or attach hangers anywhere along the run without drilling. If your spec calls for a solid-back channel with no back perforation, this is not the one to order.

12 gauge is the standard structural weight for trapeze hangers, pipe racks and conduit runs where the channel spans between supports. Lighter gauge strut (14 or 16) is meant for short backing, light fixture mounting and single-run conduit straps close to structure. If the channel is spanning and carrying accumulated load, stay with the 12 gauge B12 section.

Yes, 12 gauge galvanized steel cuts cleanly with a bandsaw, chop saw with a metal blade or a portable band saw, and buying 240 in sticks is the usual way to minimise waste on long conduit or pipe runs. Deburr the cut and touch up with cold galvanizing compound, otherwise the exposed edge will rust ahead of the rest of the run.