Rim question: Spacers and tire size

Quick and simple:

Swapping my beat Durban 18" for a set of mk6 Detroit 18", will the Detroits require spacers? Google yielded people shifting up in size but nothing else for me.

The pattern seems the same, 5x112, from what I can find so it would seem to be a quick swap (along with balance).

Further the rims im getting private sale show the tires as 245/40 R18 which is a hair off the 225/40R18Ys I'd be pulling off my Durbans. Searching it seems minimal difference outside of the 245s being a bit bigger, but was looking for confirmation that keeping the stock size wouldn't cause issues on older rims.