Product Types

Metal Grating

Kloeckner offers an extensive range of metal grating products such as 19W4 serrated bar grating, 19W4 non-serrated bar grating, and expanded metal grating.



Kloeckner is one of only a few distributors of floor plate, otherwise known as diamond or tread plate. In addition to extensive inventories, Kloeckner also offers value-added services such as cutting and just-in-time delivery.

General Information About Metal Grating

Metal grating is a type of metal structure made by welding equally distanced bearing bars with cross bars. These steel bars intersect with each other perpendicularly to form a platform that looks similar to a grid. These structures are easily fabricated, and known for their strength and durability.

Metal grating is a key part of the industrial flooring and construction industry. It is used in fences, walkways, and platforms on job-sites and in support for walls and structures in construction. There are three sub-groups of metal grating: non-serrated grating, serrated grating, and expanded metal grating.

More Details About Each Metal Grating Type

  • 19W4 Serrated Grating

    Type 19W4 serrated bar grating has notches in the bearing bars. This provides traction for large automobiles and forklifts in environments with water and oil.

  • 19W4 Non-Serrated Grating

    Type 19W4 non-serrated grating has a smooth surface on its bearing bars and cross bars. It is used for areas of traffic with heavy automobiles and forklifts.

  • Expanded Metal Grating

    Expanded metal grating is sheets of metal cut and stretched to form a diamond shape pattern that is similar to a mesh net or web. The metal is never completely cut so it is able to retain its strength. Expanded metal grating can be used in construction to support materials in walls or structures.

Learn More About Each Metal Grating Grade

Frequently Asked Questions about Metal Grating

  • What is the standard size of metal grating?


    The standard sizes of metal bar grating include 19W4 and 19W2 bar grating, 15W4 and 15W2 bar grating, and 11W4 and 11W2 bar grating. The standard sizes for expanded metal grating include 3lb, 4lb, 4.27lb, and 5lb.

  • What is metal grating used for?


    Metal grating is often used for industrial flooring in factories or for safety in pedestrian walkways depending on the grade and type of metal grating.

  • How is metal grating made?


    Metal bar grating is made by welding bearing bars and cross bars together to form a grid. Expanded metal grating is formed by stretching and cutting diamond shapes into a sheet of metal, forming what looks like a metal net or web.

  • What is the difference between metal grating and bar grating?


    Bar grating welds bearing bars with perpendicular cross bars used for industrial style flooring Metal grating is similar to expanded metal grating and can be used for safety in pedestrian walkways, stairs, bridges etc. All bar grating is metal grating, but not all metal grating is bar grating.

  • What is the difference between serrated and non-serrated bar grating?


    Non-serrated bar grating has a smooth surface on the bearing and cross bars while serrated bar grating has notches on the bars surface that help with traction and skid resistance.

  • What does 19W4 mean?


    19W4 refers to the amount of space between the crossbars and the width between the bearing bars. The W4 in 19W4 refers to the width of 4 inches in between each crossbar. The width between the bearing bars is 1-3/16 inches and the 19 represents this width when looking at metal grating.

  • Why is expanded metal grating available in different weights?


    Expanded metal grating is offered in different weights so that it can withstand varying amounts of pressure. Heavier weights may be used in pathways for large vehicles, while lighter weights may be used for pedestrian walkways.

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Additional Product Types

In addition to grating and flooring products, we have an extensive inventory of over 200,000 products across the combined 6.8 million square feet of our 50+ service centers. If we can’t fulfill your needs with our expansive inventory, we’re happy to customize products to your specification. See some of our other products below.
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