Originally Posted by
mlin32
They won't be as picky as Ryanair, but 6-7cm might be noticeable. If the flight is full, they might ask you to check it at the gate.
Especially if you are not SkyP. They have a measuring device in the non-SkyP line at security at CDG 2E and 2F with an agent you don't want to mess up with and that would send you back to check-in in case it does not fit.