Trench & Inlet Systems

Grating Pacific allows the specifier to combine any of our Standard Duty pedestrian grates or Heavy Duty vehicular gratings with any of our popular Embed Frames. Unlike cast iron or molded trench products, this flexible system allows the user to specify the exact clear opening (“S” dimension) desired.

Because Grating Pacific offers five distinct embed frame profiles, the user can select a frame to meet the exact edge condition desired. Bolting the grates to the frames is optional and must be specified.

All gratings are provided with plain surface (the optional serrated surface is available when specified) and open ends are trench banded to maximize drain capacity.

Unless otherwise specified, all trench frames and grating are hot dip galvanized after fabrication in accordance with ASTM Specification A123. Our most popular systems are listed in the table below.