How to select the right channel drain

How to select the right channel drainWith an expansive range of options, it can be difficult to select the right channel drain for your project. Picking the wrong drain can lead to problems later on, so selecting the right option first time is essential. This guide hopes to make the question of how to select the right channel drain much easier to answer.

How to select the right channel drain weight class

Your primary consideration should be how much weight the channel drains are going to be supporting. This is described below as the ‘maximum weight load’. If the project involves a driveway, then a lighter duty channel is a sufficient option. However, you will need to choose a heavier duty drain if it is going to be supporting heavy traffic such as lorries.

Below are the official ratings for each class of channel drain.

Class Max. weight
load (tonnes)
A15 1.5 Very light duty, pedestrian areas such as gardens, patios and driveways
B125 12.5 Domestic driveway threshold for family cars, vans and 4x4s
C250 25 Lightly trafficked roads and small private car parks
D400 40 Main roads, highways and high traffic areas like public car parks
E600 60 Industrial estates, loading bays and cargo handling yards
F900 90 Docks, airports and other extreme heavy duty applications

There are a range of gratings to choose from

You should always think carefully about which weight class to choose based on all potential future applications. For example, a B125 channel drain may be suitable for a regular driveway, but if heavier vehicles such as delivery lorries or waste disposal trucks will be passing over the drain as well, a D400 class would have to be considered to prevent breakages.

How to select the right channel drain grating

Drainage Superstore offers a large selection of channel drain gratings. Again, the first thing to consider is the weight rating. Putting an A15 grate on a channel drain will only provide support for up to 1.5 tonnes of weight. Make sure that the right grating is used for the job!

Another thing to think about is that each grating is brand specific. For example, an ACO grate can only fit onto an ACO channel drain, so you will need to be aware of compatibility when trying to mix and match. Also, make sure that you take note of the drain grate widths, as they are not all universal and will not fit into all drains.

How to select the right channel drain brand

There are a number of recognised channel drain brands available, including ACO, Clark-Drain, DEKS and Hauraton. The brand you choose is less important than making sure you have the right weight class and size of drain. Different brands offer different styles and looks of drainage. Make sure to browse our range for the best solution for your project.

A guide on how to install an ACO drain can be found here. If you would like any extra advice or assistance, call our drainage experts on 01752 692 221. Alternatively, use the live chat function in the bottom right-hand corner of our website.

Would you like to empty your basket?

Yes No


It seems you are running an older version of Internet Explorer. Our site does not support these old browsers as they do not house the technology that allows our site to be safe and secure.

If you wish to access our site please either upgrade your browser or download an alternative.