B-Line Eaton series Grip Strut stair tread, 432" Grating length, 9.5" Grating width, Steel, 1.5" Channel size, Mill-galvanized, Stair tread, 14 gauge

The Grip Strut tread measures 9.5 inches across the walking surface with a 1.5 inch channel size, which is also its overall height. That 9.5 inch width is the usable tread depth underfoot, so if your stair design calls for a deeper going you would need to run two treads per step or move to a wider Grip Strut plank.

Yes. The B-Line Grip Strut stair tread is listed as OSHA compliant, and the diamond-pierced Grip Strut surface is what gives it the slip resistance for that: safe, sturdy footing where non-slip is required. That makes it usable on plant catwalk stairs, mezzanine access and equipment platforms where a plain plate tread would not pass.

It is steel, formed in 14 gauge, with a mill-galvanized finish. Mill galvanizing is applied to the coil before forming, so the cut ends and pierced openings are bare steel. That is fine for covered or interior industrial stairs and normal outdoor exposure, but for coastal, wash-down or chemical environments you want a hot-dip galvanized after fabrication or stainless tread instead.

It sets the load the tread carries and how it feels underfoot. This one is 14 gauge steel with a 1.5 inch channel depth, which is the common industrial-duty combination for stair treads carrying foot traffic and a worker with tools. Thinner gauges in the same profile deflect more over the same span, so if you are spanning wide stringers, keep the gauge and channel depth as specified rather than substituting a lighter section.

The model is T41514N 36 GL from Eaton's B-Line series. If you are adding to an existing stair, match that number along with the 9.5 inch grating width, 1.5 inch channel and 14 gauge steel, since mixing channel depths on the same stringer leaves the treads sitting at different heights.

What ships is the tread itself, the formed 14 gauge steel Grip Strut section in mill-galvanized finish. Fasteners, nosings and any carrier plates for bolting to your stringers are separate, so plan those into the order before the crew is on site.

Product weight is 3.6 lb. That is the figure to use for dead load when you are totalling treads on a stair run, and it is light enough that one person can set and bolt a tread without a lift.