
Balco
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is the premier choice when your project requires quality trench and access cover systems. Our aluminum covers are economical, durable and provide an attractive appearance, along with features including easy access, lightweight removable covers, surface options and block-out or cast-in installation. Access covers are typically square and sold as units. Trench covers have linear profiles.

MM Systems Corporation
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Access Covers - Durable and attractive covers that offer the maximum in performance and aesthetic flexibility. Removable covers allow access to in-floor electrical and refrigeration services. Optional trench liners provide an exit path for moisture. Cover options include plain, abrasive, diamond, recessed, and perforated plates.

NAAMM - Metal Bar Grating Division
Metal bar grating can be fabricated to suit any configuration for your specific application. Grating manufactured from carbon steel, aluminum, stainless steel, and special alloys provides safe, functional, durable products for all environments. Bar spacing and riveted centers variable and allow for products with open areas ranging from 50% to 90%.

SlipNOT® Metal Safety Flooring
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SlipNOT®: Manufactures metal slip-resistant flooring products. Stock sizes or customized to your details - floor plates, gratings, ladder rungs and rung covers, or perforated and expanded metal retrofit plates, SlipNOT® is the preeminent long term solution for safety in the workplace. SlipNOT® is Women Owned: Certification # 2005108416, NSF Approved and ISO 9001 Registered.

Syracuse Castings ![]()
Syracuse Castings designs and manufactures cast iron manhole covers, steel drainage grates and access hatches for the construction and utility industries. We offer a full line of H20 reticuline, parallel bar, curb type & ADA grating. Grates can be galvanized or painted steel or aluminum. AutoCAD drawings available on our website.
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See also:
05 7700 - Wire Mesh & Expanded and Perforated Metal
06 5150 - Fiberglass (FRP) Gratings
12 4850 - Entrance Mats, Frames, Grilles and Gratings
33 4460 - Trench and Surface Drains

Balco
![]()
is the premier choice when your project requires quality trench and access cover systems. Our aluminum covers are economical, durable and provide an attractive appearance, along with features including easy access, lightweight removable covers, surface options and block-out or cast-in installation. Access covers are typically square and sold as units. Trench covers have linear profiles.

MM Systems Corporation
![]()
Access Covers - Durable and attractive covers that offer the maximum in performance and aesthetic flexibility. Removable covers allow access to in-floor electrical and refrigeration services. Optional trench liners provide an exit path for moisture. Cover options include plain, abrasive, diamond, recessed, and perforated plates.

SlipNOT® Metal Safety Flooring
![]()
SlipNOT®: Manufactures metal slip-resistant flooring products. Stock sizes or customized to your details - floor plates, gratings, ladder rungs and rung covers, or perforated and expanded metal retrofit plates, SlipNOT® is the preeminent long term solution for safety in the workplace. SlipNOT® is Women Owned: Certification # 2005108416, NSF Approved and ISO 9001 Registered.

Syracuse Castings ![]()
Syracuse Castings designs and manufactures cast iron manhole covers, steel drainage grates and access hatches for the construction and utility industries. We offer a full line of H20 reticuline, parallel bar, curb type & ADA grating. Grates can be galvanized or painted steel or aluminum. AutoCAD drawings available on our website.
Related Associations and Reference Organizations

NAAMM - Metal Bar Grating Division
Metal bar grating can be fabricated to suit any configuration for your specific application. Grating manufactured from carbon steel, aluminum, stainless steel, and special alloys provides safe, functional, durable products for all environments. Bar spacing and riveted centers variable and allow for products with open areas ranging from 50% to 90%.