B-Line Eaton series Grip Strut five diamond plank, 120" Grating length, 11.75" Grating width, Steel, 1.5" Channel size, Mill-galvanized, Grip Strut, 1

The five diamond Grip Strut plank is listed as OSHA compliant and is intended for safe, sturdy footing where non-slip is required. The pierced diamond openings shed liquid, mud and debris so the surface stays gripping in oil, water or ice conditions typical of mechanical rooms, mezzanines and outdoor platforms.

Mill-galvanized steel is the finish on this plank, which gives it zinc protection suited to general industrial and sheltered outdoor use. In heavy wash-down, coastal or chemically aggressive environments, a hot-dip galvanized or stainless plank is the better call, since mill-galvanized leaves the sheared edges without a fresh zinc coating.

A single 120 inch plank weighs 5.9 lb, so one person can carry and set it without a lift. That light weight is the reason 12 gauge formed plank gets specified over bar grating for retrofit catwalks and service platforms where you are working off a ladder or in tight overhead space.

The diamond count describes how many rows of pierced diamond tread run across the width of the plank. Five diamond gives the 11.75 inch walking width here, which suits full walkways, stair landings and platform decking. Narrower two and three diamond planks are what you use for stair treads and single-file access runs. All share the same formed channel construction and non-slip pierced surface.

The formed channel is 1.5 inches deep, matching the 1.5 inch product height. Allow for that dimension when you set finished walking height against your support beams, curb or door threshold, since the top of the tread sits an inch and a half above the supporting member.

The 51512 10 GL is supplied as the plank itself. Hold-down clips, saddle clips or weld attachment to the supporting steel are specified separately, so budget those with your support framing when you lay out the run.