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Waste Stream Colour Coding

Waste stream colour coding has been identified by the Construction Industry as an integral part in raising Waste Awareness, separating waste at the source, reducing the amount of construction waste sent to landfill, and providing cost savings to construction companies.

"As a country, we are embarking on a massive thrust to increase recycling rates and all sectors must play their part. This is particularly true of construction, which in tonnage terms accounts for around a quarter of all waste produced. Standard coding is vital so that in time everyone on-site will react subconsciously to a colour and symbol on a skip and only placing in it what the colour suggests it should contain. Result: Automatic segregation, and improved quality of material recovered."
Peter Gerstrom, Chairman, ICE Waste Management Board

An Industry led, generic colour coding scheme has been developed by the Institution of Civil Engineers (ICE) for use in the Construction Industry. This has been adapted in our Case Studies to provide site specific information and direction for Construction Industry employees.

The colours shown below were chosen because they will stand out clearly on-site. The use of internationally recognised safety colours were chosen where appropriate to keep things globally consistent:
  • Orange = Hazardous
  • Red = Asbestos
  • Yellow = Clinical
In addition to these colours, each of the symbols incorporate hatchings that you will see on any building plan around the globe.

Waste Stream Colour Codes


White: Gypsum
Gypsum: colour white
Grey: Inert
Inert: colour grey
Black: Mixed
Mixed: colour black
Blue: Metal
Metal: colour blue
Green: Wood
Wood: colour green
Brown: Packaging
Packaging: colour brown
Orange: Hazardous
Hazardous: colour orange

The poster creator allows you to make your own waste stream posters for use on-site. To see some example posters using waste stream colour codes, go to the Poster Creator page and click on 'Sample Posters'.

Waste Stream Colour Coding in Use


Click on the titles to view examples of colour coded posters in use.

Laing O'Rourke

Bovis Lend Lease


Scottish Government

Wallace House, 17-21 Maxwell Place,
Stirling, FK8 1JU
Tel: 01786 468 789 Fax: 01786 464 611

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