The Jamison design has been adopted by the design community as the new standard for a high quality, modern, pedestrian-friendly trench grate. Notable installations include the University of Stanford School of Business, Dallas Performing Art Center, York Street in Toronto and many, many others. Conforms to ADA Accessibility Guidelines. Grate bars can run either parallel or perpendicular to the trench itself. AVAILABLE MATERIALS: 100% Recycled Grey Iron, Ductile Iron, 100% Recycled Aluminum, Silicon Bronze, Nickel Bronze. AVAILABLE FINISHES: Raw Natural Finish, Rust Conditioner (Grey and Ductile Iron Only), Polyester Powder Coat, Liquid Coat (Available upon request), Brush (Aluminum, Bronze and Nickel Bronze Only), Polish (Aluminum, Bronze and Nickel Bronze Only).