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

Yes. The open face is 1.62 inches, the industry standard 1-5/8 inch strut opening, so spring nuts, channel nuts, clamps, straps and fittings sized for 1-5/8 inch strut engage the return lips normally. Only the depth changes at .81 inches, which limits how much hardware you can bury inside the channel, not what threads onto the face.

No, keep it indoors and dry. The B54SH-240 PLN is 14 gauge steel with a Plain finish, meaning bare mill steel with no galvanizing or paint on it. It will surface rust in humidity, wash-down areas or anywhere exterior. For outdoor, parking structure, or wet locations, specify a pre-galvanized, hot-dip galvanized, or stainless version of the same B54 profile.

SH is B-Line's slotted hole pattern, punched through the back of the channel so you can through-bolt or lag the strut to studs, deck or masonry without drilling on site. If you want a solid, unpunched back for a cleaner run or full section strength, you'd order the plain-back version of the B54 instead.

Order Eaton B-Line part number B54SH-240 PLN. That breaks down as the B54 channel profile, SH slotted hole pattern, 240 inch length, and PLN for plain finish. It is a single configuration, so there are no finish or length options to select against that number.

Yes, plan on it. Plain finish steel has no protective coating anywhere, including the ends, so every cut leaves bare steel and a sharp burr. Deburr the cut and, if the run is anywhere near moisture, hit the end with a zinc-rich cold galvanizing spray or primer. Also order end caps if the channel run is at head height or in an occupied space.