Ordered new class C 28ft, campsite length issues???

The rig in my signature is a 26Q but it is 28 ft long. I have not had any problems getting into smaller sites because of the over hang on the rear,there always has been a bit of wiggle room at all the sites I have been in. That picture shows me in a listed 26 ft spot with plenty of room.

If in doubt I will use This site or This site to get a view of where I am going if at all possible.