B-Line Eaton series Grip Strut stair tread, 576" Grating length, 9.5" Grating width, Steel, 2" Channel size, Plain, Stair tread, 12 gauge

The B-Line Grip Strut stair tread, model T42012 48 BL, measures 576 inches in grating length by 9.5 inches wide, with a 2 inch channel size and 2 inch height. The 9.5 inch dimension is the tread depth underfoot, so it suits a standard stair with a roughly 9-1/2 inch run. Weight is 5.4 lb.

It is listed as OSHA Compliant. The Grip Strut surface is a serrated, open diamond pattern intended for safe, sturdy footing where non-slip is required, which is why it gets specified on plant catwalks, mezzanine stairs, and equipment platforms.

No. The tread is 12 gauge steel with a Plain finish, meaning bare, uncoated steel with no galvanizing or paint. Plain is for dry interior use. For exterior stairs, washdown areas, or anywhere with moisture or chemicals, specify a galvanized or aluminum Grip Strut tread instead, or plan to coat it after install.

12 gauge is the thickness of the steel the tread is formed from, and it is the heavier of the common Grip Strut gauges. Paired with the 2 inch channel depth, which is what carries the load between stringers, it is built for regular industrial foot traffic rather than light-duty or decorative use. Span between supports drives how much deflection you get, so on long spans check your stringer spacing.

What's described is the tread itself, 12 gauge steel with a plain finish, 9.5 inches wide. Bolts, clips, and carrier or end plates for attaching to your stringers are separate items, so order fasteners to suit your stringer material and hole pattern.

Yes. It is formed 12 gauge steel and can be cut to length on site to match your stair width. Because the finish is Plain uncoated steel, cut ends do not compromise a coating, but they will be bare metal and should be deburred. Keep the 9.5 inch tread depth and 2 inch channel intact; only cut across the length.

Grip Strut is a one-piece formed tread with a serrated, perforated walking surface, chosen where non-slip footing is the priority and debris, oil, or water needs to fall through. Bar grating is a welded assembly that carries heavier rolling and point loads but has a smoother bearing bar surface unless you pay for serration. For pedestrian stairs on catwalks and equipment platforms, the Grip Strut tread is the usual call.

Order it as Eaton B-Line part number T42012 48 BL. That designation covers the 12 gauge steel stair tread with a 2 inch channel, 9.5 inch grating width, and plain finish.