B-Line Eaton series Grip Strut stair tread, 432" Grating length, 9.5" Grating width, Steel, 1.5" Channel size, Mill-galvanized, Stair tread, 12 gauge

The Grip Strut stair tread measures 432 inches of grating length by 9.5 inches of grating width, with a 1.5 inch channel size (also given as 1.5 in product height). The 9.5 inch dimension is the walking depth of the tread, so it suits a stair with roughly a 9-1/2 inch run. The 432 inch figure is the full length as supplied, so it covers wide industrial stringers or can be cut to your riser width.

Yes. The B-Line Grip Strut stair tread is listed as OSHA compliant, and the pierced, non-slip walking surface is intended for safe, sturdy footing where non-slip is required. That makes it a fit for plant catwalks, mezzanine stairs, and equipment platforms where a slip-resistant tread is specified.

It is 12 gauge steel with a mill-galvanized finish. Mill galvanizing gives a zinc coating over the base steel that handles damp and general exterior industrial exposure. Cut ends are left bare, so field cuts should be touched up with a cold galvanizing compound if the stair is outside or in a wash-down area.

12 gauge is the heavier end of formed-steel tread stock and is what B-Line uses on this Grip Strut tread for routine industrial traffic. The 1.5 inch channel depth is what carries the load between stringers, not the sheet thickness alone, so the deeper channel plus 12 gauge steel is the combination to check against your span.

Product weight is listed at 5 lb, so a single tread is a one-person lift on the stair. Worth knowing if you are staging a full flight of treads up a ladder or onto a mezzanine before bolting them down.

The Grip Strut planking form is used both as stair tread and as walkway or platform surfacing; this piece is configured as a stair tread at 9.5 inches wide with a 1.5 inch channel. For a wide platform you would run multiple sections side by side, or step up to a wider Grip Strut plank so you need fewer support points across the span.