Interstate Grating Products

Grating Introduction

Metal Bar Grating

Metal Bar Grating is the workhorse of the industrial flooring market and has served industry for decades. Strong and durable with an exceptional strength-to-weight ratio, metal bar grating can be easily fabricated to nearly any configuration. The high percentage of open area makes bar grating nearly maintenance free and all products are fully recyclable.

Manufactured by assembling a series of equally spaced metal bars to connecting cross members, bar grating is available in three popular materials; mild carbon steel, 6000 series aluminum and 300 series stainless steels. Additionally, Interstate Gratings can produce gratings constructed with other specialty metal alloys.

Steel Bar Grating Close Up

Methods of Manufacturing

Steel Bar Grating: Welded Grating

Welded Grating

Economical design ideal for most industrial applications. Manufactured by welding the bearing bar/cross bar intersection, typically with automated forge welding equipment. Available in carbon steel and stainless steel.


Steel Bar Grating: Swage Locked Grating

Swage Locked Grating

Popular for the manufacture of aluminum, stainless steel and close mesh gratings. Cross bars are inserted into pre-punched holes in the bearing bars and then hydraulically deformed to lock the bars in place.


Steel Bar Grating: Dovetail Pressure Locked Grating

Dovetail Pressure
Locked Grating

Assembled by inserting pre-punched bearing and cross bars into an "eggcrate" configuration and deforming the cross bars under intense hydraulic pressure. Available in all materials and ideal for many architectural and ornamental applications.


Steel Bar Grating: Riveted Grating

Riveted Grating

Exceptionally durable grating manufactured by riveting bearing bars and bent connecting bars at their contact points. Excellent for applications involving impact loads and repetitive traffic patterns.