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Channel Guides

What is Channel Drainage?

Drainage Channels are specific types of drainage systems which are laid in a connected line (linear) and are used to drain surface water away from the desired area (a driveway or car park for example). Channel can be manufactured from Polymer Concrete, Composite Plastic, Glass Reinforced Concrete(GRC), Stainless Steel or Glass Reinforced Plastic.

What sizes do I need?

The size of the channel depends on the size of the area you need to drain. The bigger the area then a bigger size channel in width or depth is required. The size of the channel can also depend on the amount of room you have to dig down. Generally, a 100mm internal width channel will be sufficient to drain a patio or driveway. Typically Channels come in 1m lengths but certain systems have different lengths so it is best to check.
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Channel Drains

Channel Drains generally come in 1 Metre length sections and are also known as Trench Drains, Line Drains, ground gutters, acos, or inear Drainage

Sump Units

Sump Units are also known as outlet boxes, silt pits, outfalls or trench boxes.
Sump units are used as the collection point within the Channel Drain run. A pipe is connected to the sump unit which allows the water to flow away. A foul air trap can also be connected to certain types of sump units. A removable basket is usually placed inside the sump unit which can collect leaves and debris before entering ito the main pipe.

Start/End Caps

Start and End Caps are used at the start or end of the channel run to prevent water flowing out, and are also used to stop concrete or debris falling into the channel during installation.

End Cap Outlets

End Cap Outlets are used at the end of the channel run which enables a pipe to be connected to allow water to flow out. Outlet sizes will be shown on individual product pages.


The gratings are installed on top of the channel drain to complete the unit. Gratings vary in style, material, loading and width depending on what channel system is being and what desired look you are going for. Gratings can either lock into the channel by bolt and bar or through a snaplock mechanism which doesn’t require a bolt and bar.

Load Classes

Load ClassWeight LoadUses & Applications
A151.5 tonnePedestrians, Cycles, Driveways, Patios, Gardens.
B12512.5 tonneSlow-moving light-duty vehicles, vans, and cars.
C25025 tonneLight Traffic – Private car parks for vans & cars.
D40040 tonneHighways, public car parks & light commercial vehicles.
E60060 tonneIndustry areas, loading bays, heavy-duty vehicles.
F90090 tonneHeavy-duty vehicles, docks, airports, industrial areas.