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Metal Grating Fundamentals

All About Bar Grating


The Anatomy of Metal Bar Grating

What is Grating?

A manufactured product for nearly 100 years, metal grating is an assembled grid or metal lattice of parallel bearing bars with crossbars or crimp bars used to space and hold the bearing bars erect. Grating provides a surface but allows air, light, heat, sound and water to pass through. It is strong and durable, and virtually maintenance free. Metal grating is either custom fabricated or provided in “stock panels” and is available from IKG in a wide variety of sizes, spacings, thicknesses, surfaces, and finishes, depending on the application´s environment and load requirement. Metal floor grating may be required by regulatory standards in certain circumstances. It is a reliable, proven product for industrial flooring because it withstands heavy equipment, rolling loads and pedestrian traffic.

What materials are used to make grating?

Many varied materials can be used for gratings, commonly carbon steel alloys, aluminum, and stainless steel. Each material has specific advantages; carbon steel industrial flooring gratings are good for high-traffic floor areas; aluminum grating is lightweight; corrosion resistant and non-sparking, so it is well-suited to situations where strength to weight ratio is important, such as wastewater treatment plants. Stainless steel grating is used in areas with elevated temperatures and certain corrosive environments.

What is span?

The distance between points of grating support, or the direction of this dimension. It must always be measured parallel to the bearing bars.

Can you create customized bar grating?

Yes, our in-house fabrication shop is equipped to make your unique bar grating solutions. Our team will help you come up with a design that best fits your needs.

What is banding?

The open ends of grating panels can be banded to provide additional transverse stiffness and an enhanced architectural appearance. Banding is especially important when grating panels are designed to be removable. If grating ends will be unsupported or grating will be subject to vehicular loads, banding can reduce impact stresses by transferring loads to adjacent bearing bars.


Useful Resources

Glossary of Grating Terms

NAAMM Metal Bar Grating Manual MBG-531

Grating Open Area Percentages

Galvanizing Specification (ASTM A123)

Galvanizing Repair Specification (ASTM A780)