Caravan length limitations on Overseas site

IanTG

Just thinking about booking first trip overseas, and note some sites quote limits on caravan lengths. For example, 7.5m, and as our caravan's manufacturer's stated length is 7.55m, is that extra 5cm going to be an issue? How would anyone notice that difference?
That said, the last thing I want to do is be turned away at the gate, so to speak. Anyone had any experience of this, or got any advice?