What is the average draft and beam on a 40ft boat?

Nordhavn 40/II - tawler:

Beam: 14' 6"

Draft: 5' 2"

Hinckley T40 - jet boat:

Beam: 12' 5"

Draft: 2' 3"

I would say that these are the extremes. A semi displacement hull would run anywhere between these two.