Most of a trench drain system is underground and mostly invisible, apart from the grate. Aesthetics aside, the grate must work together with the channel to provide the right load classification performance (AS 3996). For aesthetics, grates come in a variety of different materials such as ductile iron, galvanised steel, stainless steel, non-ferrous metals and plastics. Each material has differing load class ratings.

Learn more about designing for inclusions & disability. Grates that comply with the requirements for pedestrian & cycle areas (AS 3996 & AS 4586) and disability access are available (AS 1428.2).