Fibrelite’s line of composite covers is considered the industry standard for their high strength and durability. These covers are specified by designers when the application involves heavy wheel loads. Covers come as standard with a C250 (25 tons) load rating, for use in areas with slow moving traffic, or a D400/HS25 (40 tons) load rating, and can go up to F900 (90 tons). Custom covers are made in any color and can incorporate custom logos or markings molded into the upper surface of the cover for product/brand identification.