Product Overview
Riveted gratings are manufactured by cold press riveting straight bearing bars to crimped rectangular flat bars. The oldest form of grating, riveted products offer superior resistance to impact, fatigue, and repetitive loads.
Riveted gratings are ideal for applications where high strength and stiffness are required. Bridge decking is a heavy duty form of riveted grating.
Riveted Bar Grating Details
Design
Riveted gratings are available in carbon steel, 6000 series aluminum, and 300 series stainless steel. These products are manufactured with bearing bars spaced either 1-1/8” or 3/4″ apart and the standard rivet spacing is 7 inches on center. Optional close rivet spacing of 3-1/2” on center is also available.
Standard serration includes serration of the reticuline bars which are raised slightly above the top plane of the bearing bars during assembly. Alternatively, users may specify 100% serrated where both the bearing bars and cross members are provided with serration.
Bar Grating Fabrication and Engineering
We offer complete engineering services from concept to production. This includes design consultation, technical manuals, CAD drafting, engineering certification, and custom design services.
Once your plans are approved, our fully trained production staff will transform stock panels into the custom components your project calls for. Our services include full layouts, saw cutting, flame or plasma cutting, welding, punching, banding, and finishing.
We also fabricate stair treads, frames, and install lifting devices as needed.
All panels are piece marked to match installation drawings that ship with your order.
Steel Bar Grating Welding & Fastener Information
Welding will provide a superior, permanent installation. Mechanical fasteners, also known as grating clips, are great options when steel bar grating will need to be removed or welding is not practical.
The recommended minimum weld pattern shown indicates the minimum fastener spacing for pedestrian applications. Vehicular applications typically require additional welding, size, and spacing as to be determined by the specifying authority.
Saddle Clips
Bent clips bridging two bearing bars are available in galvanized steel, stainless steel, or aluminum. Standard bolt holes are 5/16″. Bolts, screws, or other connecting hardware shall be supplied by others.
Countersunk Lands
The narrow spacing of close mesh grating allows for countersinking or milling of the bearing bars to support bolt shoulders. Flat head screws or self-drilling fasteners shall be supplied by others.
Weld Lugs
Plates, punched with holes and welded between the bearing bars, facilitate bolting to the supporting structure. Bolts, screws, or other connecting hardware shall be supplied by others.
“G” Clips
Mechanical fasteners installed from the top surface of the grating create a friction connection with the flange supporting the panel. “G” clips are easily installed without drilling or welding.
Countersunk Lands
The narrow spacing of close mesh grating allows for countersinking or milling of the bearing bars to support bolt shoulders. Flat head screws or self-drilling fasteners shall be supplied by others.
“J” Clips
Narrow formed clip captures one bearing bar when spacing is limited, frequently 11/16″ on center. Cap screws and other fastening hardware shall be supplied by others.
