External channel drainage is specified for areas subject to pedestrian or vehicular traffic, and is rated according to the load classes set out in BS EN 1433:2002.

Channels for civic / industrial surface water drainage include products for roads, pavements, car parks and transport terminals through to stockyards, airports and military sites.

Channels for residential applications include pathway, patio, driveway and threshold drains.

Slotted linear drains integrate especially well with natural stone or concrete block paving schemes.

Removable grating channels have functional galvanised steel grids, ornate cast iron gratings or high-specification resin polymer or stainless steel fittings.

Distinct products are available for combined drainage kerbs and sports channel drains.