B-Line 42012N 12 GL Eaton series Grip Strut four diamond plank, 144" Grating length, 9.5" Grating width, Steel, 2" Channel size, Mill-galvanized, Grip Strut, 12 gauge

The 42012N 12 GL plank runs 144 inches long by 9.5 inches wide, with a 2 inch channel depth. On a walkway or platform you lay planks side by side across the supports, so figure your walkway width in multiples of 9.5 inches and allow for the 2 inch height when you set your clearances under the walking surface.

The 42012N 12 GL four diamond plank is listed as OSHA compliant and is intended for safe, sturdy footing where a non-slip surface is required. The four diamond pattern is the serrated, self-cleaning openings that shed water, oil, mud and light debris, which is why it gets used on catwalks, mezzanine walkways, stair treads and equipment platforms rather than a smooth plate.

Mill-galvanized steel is the standard coating for covered, indoor and normally dry-to-damp industrial areas. It is a pre-galvanized coating applied to the coil before forming, so the cut edges and punched diamonds are bare steel and will show surface rust in a genuinely corrosive or constantly wet setting. For washdown areas, coastal exposure or chemical service, specify a hot-dip galvanized after fabrication or stainless plank instead.

The 42012N 12 GL is the plank only. Hold-down clips, bolts or welding are a separate line item, so add the attachment hardware to your order. The 2 inch formed channel on each side is what the plank sits and fastens on, so match your clips to a 2 inch channel depth.

Order Eaton B-Line part number 42012N 12 GL. That designation covers the four diamond plank in steel, 144 inch length, 9.5 inch width, 2 inch channel, 12 gauge, mill-galvanized. Give the full string including the 12 GL suffix, since the gauge and finish ride in the suffix.

This 12 gauge, 144 inch plank is listed at 5.4 lb, so one man can carry and set a full length without a lift. That matters when you are decking a mezzanine or a pipe-rack catwalk overhead and passing planks up by hand.

Yes, the 144 inch plank is 12 gauge steel and can be cut down in the field to suit an opening. Cut edges expose bare steel because the mill-galvanized coating is applied before forming, so touch up the cuts with a zinc-rich cold galvanizing compound to keep rust off them.