McNICHOLS® Plank Grating

Plank, GRIP STRUT®, Galvanized, ASTM A-653 G90, 14 Gauge (.0785" Thick), 2-Diamond (4-3/4" Width), 1-1/2" Channel Depth, Serrated Surface, 34% Open Area
McNICHOLS® Plank Grating, Plank, GRIP STRUT®, Galvanized, ASTM A-653 G90, Mill Finish, 14 Gauge (.0785" Thick), 2-Diamond (4-3/4" Width), 1-1/2'' Channel Depth, Serrated Surface, Long Way of Opening (LWO) Parallel to Width of Plank, 34% Open Area

ITEM 2402151410 - 4-3/4" x 120"

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Item Number 2402151410
Product Line Plank Grating
Construction Type Plank
Series Type & Name Plank - GRIP STRUT®
Primary Material Galvanized (GV)
Alloy, Grade or Type ASTM A-653 G90 (A653G90)
Material Finish Mill Finish
Gauge/Thickness 14 Gauge (.0785" Thick)
Surface Profile 2-Diamond (4-3/4" Width) GRIP STRUT® Plank
Surface Width 4-3/4"
Channel Depth 1-1/2"
Product Surface Serrated
Percent Open Area 34%
Weight 2.30 Lbs./Linear Foot
Product Form Plank
Sizes (Width x Length) 4-3/4" x 120"; 4-3/4" x 144"
Load Table View


Plank Grating facilitates secure footing on rooftop walkways, catwalks, stairs, and other surface applications when safety is critical. The product line is lightweight and easy to cut and fabricate. Made by forming and punching metal, McNICHOLS® Plank Grating comes in a variety of materials including Aluminum, Carbon Steel, Galvanized Steel and Stainless Steel. Different construction types consist of Plank, Walkway (both with heavy-duty options), Interlocking, Extruded Interlocking and Heavy-Duty Plank. Additional construction types consist of several Ladder Rung Plank styles, as well as Stair Tread Plank Grating options. An array of heights, widths, surface profiles, thicknesses and more are all part of our complete line of Plank Grating Hole Products!


The following selections are important considerations to help you choose the right McNICHOLS® Perforated Metal product for your project or application. Please specify:



Consider Plank Grating uses and physical requirements for your interior or exterior application. Loading, span and support needs as well as traffic requirements such as pedestrian or hand cart are important considerations. Several Plank Grating products comply with the Americans with Disabilities Act (ADA) when installed to written standards. We invite you to browse Plank Grating applications in our Gallery.


Construction Type

Choose from a wide variety of Plank constructions types including Plank, Walkway, Heavy-Duty Plank, HeavyDuty Walkway, Interlocking Plank, Extruded Interlocking Plank and Heavy-Duty Extruded Plank.


Series Type & Name

Determine the series type and name (GRIP STRUT® Walkway, PERF-O GRIP® Plank, etc.) of the Plank Grating product for your project. Items that comply with the Americans with Disabilities Act (ADA) standard will have this language indicated in the item description of the applicable products.


Primary Material / Product Finish

Select the primary material type including Aluminum, Carbon Steel, Pre-Galvanized Steel, or Stainless Steel. Inventory is typically "mill finish" unless otherwise specified. We provide more information on Primary Material Types and Product Finishes in the links provided in the Overview section of the Plank Grating Resources landing page.


Material Gauge / Thickness

Decide what material gauge number or thickness in inches is right for your project. Extruded products do not have an actual gauge number due to the manufacturing process. These items are specified as an Extrusion.


Surface Profile

Choose a surface profile for your application. A surface profile includes the number of openings to width, type of opening and the width of the Plank or Walkway measured in inches (e.g. 5-Diamond (11-3/4" Width), 6-Hole (12" Width), etc.)


Channel Depth / Height

Select the channel depth or height for your surface profile selection. The channel size for Plank products is referred to as depth. For Walkway products, the channel size is referred to as height because of its upturned profile above the surface of the product.


Percent Open Area

Choose the percentage of open area desired in your Plank Grating construction type selection.



Choose the direction the openings need to run in your surface profile selection. Surface profile direction is often referred to as span. Clear span refers to the distance in-between Plank Grating supports and is an important installation consideration.


Product Size, Form & Quantity

Identify the number of Planks or other forms (width and length) needed as well as specific sizes (cut-to-size pieces, areas, Stair Treads, etc.). Areas exceeding standard Plank widths are provided in multiple pieces to width.


Special Requirements

Specify any requirements like fabrication, notching, cut-outs, Stair Treads, non-standard tolerances, etc.



Determine if Plank Grating Accessories like Clips or Fasteners/Hardware, Splice Plate Kits, etc. are needed for your project or application.


View additional McNICHOLS® Plank Grating Resources on tolerances, conversions, available sizes, and more!


Load Tables

Helpful Plank Grating reference guides to save, print, or share!


Plank - Carbon Steel, Galvanized Steel & Stainless Steel


Heavy-Duty Extruded Plank - Aluminium