B-Line Eaton series Grip Strut three diamond plank, 120" Grating length, 7" Grating width, Steel, 1.5" Channel size, Mill-galvanized, Grip Strut, 14 g

The Grip Strut three diamond plank is listed as OSHA compliant and is made for safe, sturdy footing where non-slip is required. The diamond openings shed water, oil, mud and debris rather than holding them on the surface, which is what keeps the traction working in a mechanical room, on a rooftop catwalk, or around outdoor equipment.

This plank is 14 gauge steel with a mill-galvanized finish. Mill galvanizing puts a zinc coating on the coil before the plank is formed, so the sheared edges and punched openings are raw steel and will show surface rust outdoors over time. It is a reasonable choice for covered or interior service areas, mechanical rooms and equipment platforms. For constant weather exposure, a wash-down area, or a corrosive process environment, specify a hot-dip galvanized-after-fabrication or stainless plank instead.

The diamond count is simply how many rows of diamond openings run across the width of the plank, which sets the walking width. This is the three diamond version at 7 inches wide. Two diamond planks are narrower and suit a single tread, ladder rung or a tight step; four and five diamond planks are wider and cut down the number of pieces you have to set on a full catwalk. The channel depth and gauge are what drive the span, not the diamond count, so match the diamond count to the width you need and the channel size to your support spacing.

What ships is the plank itself, model 31514N 10 GL, in 14 gauge steel. Hold-down clips, saddle clips, bolts and any support framing or channel underneath are separate line items, so add them to the order. Plan your supports first, then pick the attachment hardware to suit the flange of the supporting member.

The plank stands 1.5 inches high, matching the 1.5 inch channel size, so the walking surface sits an inch and a half above whatever it is bolted to. Add your support steel below that when you are setting finished walking height or checking headroom under a rooftop run.

Yes. The 120 inch plank is formed 14 gauge steel and cuts with a band saw, chop saw with a metal blade, or plasma. Cut ends on a mill-galvanized plank leave bare steel, so treat them with a cold galvanizing compound if the walkway sees any moisture, and deburr the edge before anyone walks it.

Yes. The listed product weight is 3 lb, so a single 10 foot plank is a one-man carry and lift even up a ladder or onto a rooftop curb. The awkward part is the length, not the load, so handle it edge-up and have a second set of hands for long horizontal runs.