Public Events: For shows and public events these work out differently example is the food and drink being served which means again additional toilets and extra servicing.   Construction Work sites: County Loo Hire follows the the British Standard BS6465-1:2006. This states that 1 toilet should be provided  for every 7 operatives working a 40 hour week as also recommended by the HSE it is important to note if you have more than 7 operatives or users which is normally the case towards  the end of projects you will require additional toilets or additional servicing.