B-Line Eaton series strut channel, .81" channel height, 240" channel length, 1.62" channel width, Steel, 14 Gauge, S hole pattern, B54 channel type, P

Yes. The B54 profile measures .81 inch in height by 1.62 inch in width, so it is the shallow version of the standard 1-5/8 inch strut. The width is full 1-5/8 inch, which is why standard strut nuts, straps and fittings sized for 1-5/8 inch channel still seat in the lips. The shallow depth just means less projection off the wall or deck and less load capacity than a full 1-5/8 by 1-5/8 section.

Pre-galvanized steel is a mill-coated finish and is intended for indoor and dry or lightly damp locations. Cut ends are left bare, so in a wash-down area, a pool room, a parking deck or anywhere exposed to weather or chlorides you should move to a hot-dip galvanized or stainless channel. For normal indoor mechanical room, ceiling and electrical room support runs, this pre-galvanized 14 gauge steel B54 is the usual choice.

The channel opening is the standard 1-5/8 inch width, so hardware built for 1-5/8 inch strut, spring nuts, channel nuts, pipe straps and post bases, engages the lips normally. What the shallow .81 inch depth restricts is anything that needs to sit down inside the channel, such as deep-throat inserts or back-to-back couplings sized for a full-depth section. Nuts and fittings are sold separately, none are included with the channel.

S is the slotted back pattern, so model B54S-240GLV comes with slots punched along the channel back rather than a solid back. That lets you bolt through the channel into studs, deck or unistrut at points along the run without drilling on site. If you want an unpunched back for a cleaner look or full section strength, you want the solid-back version of the B54 instead.

14 gauge is the standard strut thickness used for conduit racks, cable tray supports, and light pipe and duct hangers. Where this B54 differs from a heavier run is the .81 inch depth: the shallow section carries less than a full-depth 1-5/8 by 1-5/8 channel over the same span. For long unsupported spans or heavier mechanical loads, step up to full-height strut or a back-to-back section rather than adding more hangers to a shallow channel.