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Linear Drainage

Browse Build4less for selection of domestic Linear Drainage products. Contact us on Live Chat or by phone 020 3481 1978 if you need guidance - Free Delivery on all orders over £300. To know more about channel drainage Read Our Guide.
Channel Leaf and Debris Trap


What is linear or channel drainage?

Linear drainage is also known as Channel or trench drainage. The system of drainage which drains along the entire length, rather than one specific point is known as linear drainage. The trench used for channel drainage is not that deep so it is easy to install in places with complex and unknown underground services and utilities.

Channel drainage offers an easy installation, low-cost and elegant look and lowers the price of underground installation of pipework.

What is grating in linear drainage?

Grating is a covering to a channel. The length of the grating is usually one which fits the accompanying channel. The load class of grating and channel is the same as mentioned in the chart below.

Using drain grates is important as it protects from blocking, injuries, and damages

Load Classes for channel drainage


Test Load (kN)

Typical Usage



Pedestrians and cyclist only



Car park, Residential Driveaway, Slow moving traffic



Small Car park, kerbside or service station



Carriageway use – All public highways



Commercial and industrial heavy loads



Exceptional loads – Airports, Military, etc.

What are the materials used to make the channel body?

Materials used to make a channel body are

  • Steel
  • Plastic
  • Concrete

Application areas for linear drainage/ channel drainage

  • Housing
  • Landscaping
  • Internal drainage
  • Parking areas
  • Retail and commercial developments
  • Industrial developments
  • Highways
  • Residential developments
  • Rail
  • Airports and docks
  • Utilities

Advantages of channel drainage

  • Collects excessive rainwater
  • Decreases the risk of soil erosion
  • prevent water overflow
  • Easy to install
  • Corrosion-resistant material
  • Provides seamless finish
  • Designed in such a way to reduce foul smell

How to install channel drainage

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