B-Line Eaton series Grip Strut two diamond plank, 144" Grating length, 4.75" Grating width, Aluminum, 1.5" Channel size, Grip Strut, .100" Thick

At 4.75 inches wide and 144 inches long, the B-Line 21510 12 AL plank is a narrow, long run. One piece on its own gives you a single walking path or stair-tread strip, not a full platform. For a wider walkway, planks are laid side by side across the supports until you reach the width you need. The 1.5 inch channel depth is what carries the span, so plan your support spacing around the channel legs bearing on the structure, not on the plank edges.

Yes. The Eaton B-Line Grip Strut two diamond plank is listed as OSHA compliant, and the diamond-pierced surface is the reason: it is a non-slip walking surface intended for footing where slip resistance is required. That is the compliance point most facility and MRO buyers are checking when they specify it over plain plate or bar grating.

This plank is aluminum, which is the version people specify for corrosive, wet, or coastal environments and anywhere the crew has to carry the material up a ladder or into a tight mechanical space. At 1.08 lb it handles much lighter than an equivalent steel section. Steel and galvanized versions of the same two diamond profile are the choice where you want maximum load capacity and cost matters more than corrosion resistance or weight.

It is 12 gauge material, .100 inch thick aluminum, formed into a channel 1.5 inches deep. That combination is what a specifier checks against the drawing: the gauge sets the load rating, the 1.5 inch channel sets the section depth and therefore the allowable span between supports.

The 21510 12 AL is the plank itself, supplied as the formed aluminum section. Hold-down clips, saddle clips, bolts, or weld attachment are ordered separately and chosen to suit what you are fastening to, whether that is steel angle, a strut frame, or a stair stringer. Budget for that hardware when you price the run.

Order Eaton B-Line part number 21510 12 AL. That designation carries the full spec: two diamond plank profile, 1.5 inch channel, 4.75 inch width, 144 inch length, 12 gauge aluminum.