B-Line B22S-120YZN Eaton series strut channel, 1.62" channel height, 120" channel length, 1.62" channel width, Steel, 12 Gauge, S hole pattern, B22 channel type, Yellow zinc chromate

Yellow zinc chromate is a plated finish meant for dry indoor use, mechanical rooms, ceilings, and equipment rooms. It is not a hot dip galvanized or stainless finish, so for exterior runs, parking structures, wash-down areas, or corrosive process spaces you should step up to a hot dip galvanized or stainless 1-5/8 strut instead of the B22S-120YZN.

S is B-Line's slotted hole pattern, punched along the channel back so you can bolt the strut to structure or thread hanger rod through it without field drilling. On the B22S-120YZN that slotting runs the full 120 inch length. If you need an unpunched back for a cleaner look or full-strength continuous span, you want the solid-back version of B22 instead, not the S.

Each 120 inch length of the B22S-120YZN weighs 23.6 lb. That is manageable for one person to carry but awkward overhead in 12 gauge steel, so most crews cut to length on the ground before lifting. Figure the same 23.6 lb into your hanger and structure loading when you are stacking multiple runs.