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LY Metals “SG” Swage Locked Aluminum Grating

The most widely used aluminum grating, type SG rectangular bar, provides crisp lines.  Bearing bars are available with standard plain or optional serrated or OnGrip surfaces.  The crossbars are fully locked within the bearing bar, slightly below the top surface. 

Type 19-SG-4 aluminum grating is the industry-recognized standard for industrial applications.  With nearly 80% open area, 19-SG-4 is virtually self-cleaning, allowing for easy passage of dirt, debris, snow, and liquids. 

Type SG gratings are available in close mesh ADA conforming spacings 11-SG-4 and 7-SG-4, which are commonly used for public areas.

LY Metals “SGI” Swage Locked I-Bar Aluminum Grating

Manufactured with highly efficient “I” shaped extruded bearing bars, type SGI aluminum grating carries the same load as 3/16” thick rectangular bar type SG grating.

The I-bar reduces total weight per square foot and the striated flanges provide increased slip resistance without the added cost of serration.

LY Metals “SGT” Swage Locked T-Bar Aluminum Grating

Manufactured with highly efficient “T” shaped extruded bearing bars, type SGT aluminum grating carries the same load as 3/16” thick rectangular bar type SG grating.

The T-bar reduces total weight per square foot and the striated flanges provide increased slip resistance without the added cost of serration.

LY Metals “ADT” Aluminum Dovetail Pressure Locked Grating

Type ADT aluminum gratings have deep rectangular cross bars and are manufactured by inserting pre-punched bearing bars and cross bars into an “egg-crate” configuration and deforming the cross bars under intense hydraulic pressure. 

The deep cross bars on type ADT gratings make them popular for architectural applications such as sun shades and infill panels with the deeper cross bar serving as a distinct visual accent.