B-Line Eaton series Grip Strut stair tread, 288" Grating length, 11.75" Grating width, Steel, 1.5" Channel size, Plain, Stair tread, 12 gauge

It is a single 288 inch (24 foot) length of Grip Strut tread, 11.75 inches wide, with a 1.5 inch channel depth. That length is meant to be cut to your individual step run, so one piece covers a full stair flight rather than one step. Measure your stringer-to-stringer tread run before cutting.

Yes. The Grip Strut tread is listed as OSHA compliant, and the perforated, serrated channel surface is intended for safe, sturdy footing where non-slip is required. It is the standard choice for plant catwalks, mezzanine stairs, and equipment platforms.

An 11.75 inch tread width suits a standard commercial stair run. Check your existing tread depth front to back and the hole pattern or clip arrangement on your stringers, since this comes as plain unpunched 288 inch stock that you cut and drill to suit. The 1.5 inch channel height also sets your riser dimension, so match it to what you are pulling off.

Plain means bare, uncoated steel with no galvanizing or paint. For interior, dry service that is fine. For exterior or washdown areas, bare steel will corrode, so specify a galvanized or coated Grip Strut tread instead, or plan to prime and paint the plain material after cutting.

It is formed from 12 gauge steel with a 1.5 inch channel depth. The 12 gauge material with the deep formed channel is what gives the tread its span strength, so a heavier walking load or a longer unsupported span calls for the deeper channel sizes rather than a thinner plank.