B-Line Eaton series strut channel, .81" channel height, 120" channel length, 1.62" channel width, Steel, 14 Gauge, S hole pattern, B54 channel type, Y

The B54 channel measures 1.62 in wide by .81 in high, which is the standard 1-5/8 inch strut width in a half-height (13/16 inch) profile. Any fitting, nut, or clamp made for 1-5/8 inch strut seats in the channel opening; what changes with the half-height section is the depth of the back, so deep-throat fittings that rely on a full 1-5/8 inch tall section are not a match.

No. B54S-120YZN is the bare 120 in channel only. Strut nuts, spring nuts, end caps, conduit clamps, corner and wing brackets, and the anchors that fix it to structure are all ordered separately. Match those fittings to 1-5/8 inch strut and, where finish matters, to the yellow zinc plating.

S is the slotted back pattern, so the 120 in length is punched with slots along the channel back rather than being solid. That lets you through-bolt to structure anywhere along the run without drilling. If you need an unpunched back for a cleaner look or full section strength, you want the solid-back version of the B54 channel instead.

Yellow zinc chromate is a plated finish meant for dry indoor and protected service. It is not a hot dip galvanized or stainless coating, so for exterior runs, rooftops, parking structures, or washdown areas you should specify a galvanized or stainless channel in the same B54 profile rather than the YZN version.

8.9 lb for the full 120 in stick. That is light enough for one person to carry and set, and it matters when you are calculating the dead load of a long overhead trapeze run before you size the rod and anchors.

The B54 is rolled from 14 gauge steel, which is the lighter of the two common strut thicknesses and is the usual pick for conduit racking, small pipe trapezes, and equipment mounting where loads are modest. For heavier mechanical piping or long unsupported spans, step up to a 12 gauge section or a deeper full-height channel.

Order Eaton B-Line B54S-120YZN. That breaks down as the B54 half height profile, S slotted back, 120 in length, and YZN yellow zinc chromate finish. If your spec calls for a different finish or a solid back, the base B54 designation stays and the suffix changes.

Yes. The 120 in stick is 14 gauge steel and cuts cleanly with a bandsaw, chop saw with a metal blade, or portaband. Touch up any cut end, since the yellow zinc chromate plating stops at the cut and bare steel is exposed there.