An easy to follow guide to RAL Colours


What are RAL colours?

‘RAL colours’ is a colour matching system that is well known and used throughout the UK and Europe.

First established as an independent quality assurance organisation in 1925, with the beginning of colour standardization first starting in 1927 - RAL colours quickly became the norm and a great way for manufacturers to ensure colour quality across their product ranges. 

Door manufacturers such as Rockdoor (the UK’s leading composite door manufacturer), Homeline (leaders in the manufacturing of uPVC fascias, soffits & cladding) and of course above and below ground drainage manufacturers including FloPlast, Alumasc and Brett Martin all use RAL colours to assure quality and as a guide to the end user.

The RAL colour system has now become so popular and well known that it’s hard to find an industry that doesn’t use the colour assurance system.

What does RAL colours mean to me?

Whether you’re an experienced installer or a DIY enthusiast it’s very likely that you will require a RAL colour if you’re updating your rainwater system.

If you’re looking to match your new rainwater systems with your existing doors, windows or roofline, by having the RAL colour of the existing items it can make your life a lot easier.

Many of our Stainless Steel and Aluminium gutters can be powder coated to create a hard wearing finish in a colour of your choice (some limitations may apply depending on the manufacturer you choose).

Colour Guide by Manufacturer

To make it easier for you, we’ve collated all of the RAL data for our best selling above ground drainage brands, so if you’re looking to match it to a window, door, or even to a shade that you think will complement your existing roofline – it’s likely that we’ll have a manufacturer that can help you achieve this!

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Manufactured from Cast Aluminium using a Polyester Powder Coating, which is in accordance to BS 6496: 1984.

A full list of available RAL colours can be found here



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Experienced manufacturers of Aluminium Guttering that carry an architectural grade polyester powder coating (PPC) painted finish which is carried out to BS EN 12206-1:2004

For a full list of available RAL colours for Alutecs range of Aluminium guttering click here.



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 Brett Martin  

Brett Martins range of Cast Iron Gutter is available in 7 colours including Anthracite Grey, Oxford Blue and Olive Green.

For more details about available colours view Brett Martins Colour Guide, click here.

brett Martin


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FloPlast manufactur quality uPVC guttering with all the downpipes and joints to match – easy to install, FloPlast’s range of above ground drainage is a popular choice for many.

To view a RAL guide for FloPlast Gutter products see their handy RAL colour guide.  



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Lindab Stainless Steel Gutter

Similarly to Alumasc and Alutec, Lindab Stainless Steel guttering can be manufactured to any colour with thanks to Polyester Powder Coat technology.

Click here for more information about the colours available across our range of Lindab Stainless Steel Gutter




RAL colours can sound a lot more confusing than they are but we hope that the above explanation and guide helps! If you need more information or can’t find the RAL colour that you’re looking for, simply call us on 01254 286083 or email us at