Milton Waddams wrote:

For years I was with the same marina slip and paid by the foot for the
length of my boat. Now I'm at a new marina and they want me to pay by
the foot for the length of the slip. Which one is the more common
charge? Is it the same all over the country? Thanks,

Milton

I think you'll find it's generally by the length of the boat.

Cheers
Marty