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McNICHOLS® Plank Grating

Extruded Ladder Rung Plank, DIAMONDBACK®, Aluminum, Alloy 6061-T6 Extrusion, Diamond-Vented (1-3/4" Width), 1.390" Channel Depth, Diamond-Serrated Surface, 12% Open Area
McNICHOLS® Plank Grating, Extruded Ladder Rung Plank, DIAMONDBACK®, Aluminum, Alloy 6061-T6 Extrusion, Mill Finish, Diamond-Vented (1-3/4" Width), 1.390" Channel Depth, Diamond-Serrated Surface, Long Way of Opening (LWO) Parallel to Length of Extruded Ladder Rung Plank, Holes Sheared Through Both Ends of Extruded Ladder Rung Plank Parallel to Width of Extruded Ladder Rung Plank, 12% Open Area, 1.7500" x 144.0000"

ITEM T7LR517112 - 1-3/4" x 144" In-Stock!

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Item Number T7LR517112
Product Line Ladder Rungs
Construction Type Extruded Ladder Rung Plank
Series Type & Name Extruded Ladder Rung Plank - DIAMONDBACK®
Primary Material Aluminum (AL)
Alloy, Grade or Type Alloy 6061-T6 (6061T6)
Material Finish Mill Finish
Gauge/Thickness Aluminum Extrusion
Surface Profile Vented (1-3/4" Width) DIAMONDBACK® Extruded Ladder Rung Plank
Surface Width 1-3/4"
Channel Depth 1.390"
Vent Size .750" X 2.125"
Vent Shape Diamond
Product Surface Diamond Serrated (0.140" Height)
Percent Open Area 12%
Weight 0.74 Lbs./Linear Foot
Product Form Rung Plank
Sizes (Width x Length)
1-3/4" x 144"
Load Table View


McNICHOLS carries slip-resistant Ladder Rung Plank in GRIP STRUT® and TRACTION TREAD® styles, as well as GRIP TIGHT® Ladder Rung Covers. We also stock an Extruded Ladder Rung Plank option with the DIAMONDBACK® tradename. This line of Hole Products requires minimal maintenance and ensures solid footing for years. Ladder Rungs come in several primary material types and can be cut-to-length.


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



Product applications/uses include Rungs for rooftop access ladders, truck or emergency vehicle steps, covers over existing solid Ladder Rungs, and more. Please consider loading, span, support, and attachment needs for your project. We invite you to browse Ladder Rung applications in our Product and Application Gallery.


Construction Type

Choose from our broad selection of Ladder Rung Plank, Extruded Ladder Rung Plank, and Ladder Rung Cover Plank construction types for your project.


Series Type & Name

Determine the series type and name (GRIP STRUT® Ladder Rung Plank, GRIP TIGHT® Ladder Rung Cover Plank, etc.) of the Ladder Rung product for your project.


Primary Material / Product Finish

Select the primary material type including Aluminum, Carbon Steel, 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 on the Ladder Rung Resources landing page.


Material Guage / Thickness

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


Surface Profile

Choose the surface profile for your application. A surface profile includes the number of openings to width, type of opening, and the width, measured in inches, of the Ladder Rung Plank or Ladder Rung Cover Plank (e.g. 4-Row (2-1/4" Width), etc.).


Channel Depth

Select the corresponding channel depth for your surface profile selection.


Percent Open Area

Choose the percentage of open area desired in the Ladder Rung construction type chosen.


Product Size, Form & Quantity

Identify the number of Ladder Rungs needed as well as specific cut sizes (lengths).


Special Requirements

Specify any requirements like non-standard tolerances, etc. DIAMONDBACK® Ladder Rung Planks with radius cut ends are available as a custom order.


View McNICHOLS® Ladder Rung Resources on tolerances, available sizes, and more!



Helpful McNICHOLS® Ladder Rung load tables to save, print, or share!

Ladder Rung Plank - Carbon Steel & Galvanized Steel
Ladder Rung Plank - Metals (Aluminum, Carbon Steel, Galvanized Steel & Stainless Steel)
Extruded Ladder Rung Plank - Aluminum