I gave a quote this afternoon to wire up a garage.
I asked "what sort of power do you need in the garage, what will you be running?" I was told "tumble dryer and washing machine" but leave me some extra load for other stuff please.
You should have seen his face when I replied "stop f****ng me about and just tell me how many growing lights you want because there is no way there will be a tumble dryer in there"
I got the job and I will be using 6mm SWA.