B-Line Eaton series runway tubular, 119" height, 119" length, 36" width, ASTM A513 grade, 1008 steel, 11 gauge, Tubular stringer, Yellow zinc

No. SB1736YZ is the tubular stringer alone, the side rail. A finished runway needs a pair of stringers plus the cross rungs, splice plates, and your choice of mounting hardware, wall angle brackets, threaded rod kits, or rack-to-runway mounting plates. Order those separately and match them to the 36 inch runway width.

The SB1736YZ is a tubular stringer for cable runway in communication pathways, the overhead ladder-style tray that carries copper and fiber above racks in a data center or telecom room. The stringer is the side rail of the runway; it is the structural member the cross rungs attach to and the piece that spans between wall brackets, threaded rod, or rack-top supports.

11 gauge 1008 steel, manufactured to ASTM A513 tube spec, with a yellow zinc finish. A513 is the standard for welded carbon steel mechanical tubing, so this is a formed tube section rather than a rolled channel, which is what gives a tubular stringer its torsional stiffness across the span.

The stringer is UL Classified. On communications runway, UL Classified cable tray systems are the ones evaluated so the metal runway can serve as an equipment grounding conductor when bonded per the installation instructions. You still need the proper bonding jumpers at splices and a connection back to the room ground bar.

One stringer weighs 40.4 lb. Two stringers plus rungs is the real dead load per section, so add that to your cable fill weight when you size threaded rod, wall angle, and rack-top supports. It is a two-man lift at 119 inches long even though the weight itself is manageable.

Order model SB1736YZ from Eaton B-Line. That number covers the 36 inch wide, 119 inch long tubular stringer in 11 gauge steel with the yellow zinc finish. There is one configuration, so there is no separate finish or length code to specify.

Yellow zinc is a plated finish intended for dry, conditioned indoor spaces, which is where cable runway in communication pathways normally lives, equipment rooms, MDF and IDF closets, and data centers. For exterior or damp locations you want a hot dip galvanized or stainless runway instead.