Simple,

Once again I'm sorry to say, you are wrong.

The depth has to do with the height of the HULL. When you spoke of
tonnage, you were referring to displacement. Displacement refers to the
weight of the water displaced by the HULL. The Hull is measured from the
Gunnel to the top of the keel. The tonnage has to do with displaced
water not cargo space.

It is not measured to the cabin overhead, any more than it is measure to
the height of the cockpit floor. The 5 ft Measurement is probably
correct. Superstructure doesn't count.

The measurements on the application is just another example of Coast
Guard "Gobble-de-Gook" The CG acts like it is their duty to make
anything simple a subject to a complicated interruption.

AND: "I'LL DRINK TO THAT!"

Ole Thom