B-Line Eaton series Grip Strut stair tread, 432" Grating length, 7" Grating width, Steel, 2" Channel size, Mill-galvanized, Stair tread, 12 gauge

The Grip Strut tread measures 432 inches of grating length by 7 inches wide, with a 2 inch channel size and 2 inch height. At 36 feet of total length, it is supplied as a long run rather than a single step, so you cut it to your stair width on site. A 7 inch tread width suits a single-tread-per-step layout; wider steps take two treads side by side.

Yes. The B-Line Grip Strut stair tread is listed as OSHA compliant, and the perforated non-slip surface is the reason: it gives sure footing on stairs and platforms where slip resistance is required. That is the usual basis for specifying it on plant catwalks, mezzanine stairs, and equipment access steps.

No mounting hardware is included. What ships is the formed 12 gauge steel grating section itself, 432 inches long by 7 inches wide with a 2 inch channel. Nosing, end plates, and bolts or welds to the stringer are supplied separately, so add those to your order or fabricate them to your stringer detail.

The tread is steel with a mill-galvanized finish, which is zinc coating applied to the coil before forming. That handles covered exterior and general industrial exposure, but cut ends and punched edges are left bare steel, so on outdoor stairs or wash-down areas plan to cold-galvanize the cut ends after fabrication. For heavy chemical or marine exposure, a stainless or aluminum grating is the better call.

It is 12 gauge steel formed into a 2 inch channel. The 2 inch channel depth is what carries the load, not the sheet thickness alone, and 12 gauge is the heavier of the common Grip Strut gauges used on stair and walkway treads. Span capacity depends on your stringer spacing, so size the cut length to your stringers rather than free-spanning long runs.