EWC code finder
Type what's in the skip in plain words, like "rubble" or "plasterboard", and get the matching waste code from the List of Wastes. [source]
This covers construction and demolition waste and municipal waste, chapters 17 and 20 of the list, the chapters a skip-hire firm most often needs.
The hazard note on each result is our own reading of the list, not Defra's classification. If you are not sure, check the source list or ask your waste carrier.