B-Line Eaton series Grip Strut stair tread, 360" Grating length, 9.5" Grating width, Steel, 2" Channel size, Mill-galvanized, Stair tread, 12 gauge

The B-Line Grip Strut stair tread, model T42012N 30 GL, comes as a 360 inch length, 9.5 inches wide. That is a 30 foot run, so for typical stair widths you cut it to length on site. One length yields ten 36-inch treads with a little left over. Plan your cuts off the 9.5 inch tread depth, which is what sets the walking surface front to back.

Yes. The Grip Strut stair tread is listed as OSHA compliant, and the diamond-shaped serrated openings give the non-slip footing that industrial stair applications call for. It is intended for safe, sturdy footing wherever a non-slip walking surface is required, such as plant stairways, catwalk steps, and platform access.

Channel size is 2 inches, and overall height is 2 inches, so the tread's formed side channels drop 2 inches below the walking surface. Check that your stringer notch or support angle allows for that 2 inch depth plus your fastener heads before you set the risers.

Mill-galvanized steel is the standard finish here and handles normal outdoor and unheated industrial exposure. It is not the same as hot-dip galvanizing after fabrication, so cut ends are bare steel. Touch up cut edges with a zinc-rich coating if the stairway is exposed to weather or washdown, or specify a hot-dip or aluminum tread for corrosive duty.

It is 12 gauge steel, the heavier of the common Grip Strut gauges and what you want for regular industrial foot traffic rather than occasional access. Combined with the 2 inch formed channel, the 12 gauge section gives the tread its span strength between stringers.

What ships is the tread material itself: a 360 inch, 9.5 inch wide, 12 gauge mill-galvanized steel section with 2 inch channels. Carrier plates, end closures, and bolts are separate items, so order the fasteners and any nosing or end plates you need for your stringer detail along with it.

Order Eaton B-Line part T42012N 30 GL. That covers the 12 gauge steel, mill-galvanized, 9.5 inch wide, 2 inch channel tread in the 360 inch length. Using the same number on follow-on orders keeps tread depth and channel height identical across a stairway, which matters because mixed tread depths change the riser geometry.

Product weight is listed at 5.4 lb, so a single man can carry and position the material without lifting equipment. It is 12 gauge steel, stiff enough to span between stringers but light enough to cut with a portable saw and set by hand.