The angular frame serves as a base for the metal decking to rest on as well as the base for the concrete floor to be poured over. After all necessary work is completed in the pit, a non-accessible cover is poured. The raised border around the cover allows the floor covering material to set down into the cover, flush with the surrounding floor coverings. A flush floor surface, with no protruding edges, protects floor covering edges from chipping and damage from foot traffic, sliding mechanical equipment, etc. and helps to avoid trip hazards. One cover is universal to several types of flooring material.
Loose lids promote leakage, etc.
Full perimeter gasket seals ease constant re-installation woes, while eliminating moisture and odor problems. No special tools are needed for quick cover removal. Grooves along the edge of the cover permit easy removal.