IMO wait for someone to get a proper 16 measurement, the 16's compartment is tight. Believe me you do not want to be any deeper than you need to be, the 16 porpoises pretty bad as. Any deeper than need be and it will be worse. My 16 had about 1/8" between the risers and the hatch.
Phil
Edit a side note to Bill's comment about the water pickups, my 22's X is just a hair under 17" with plenty of drive depth.
No matter what your beliefs are "GOD BLESS AMERICA"
Fully retired marine tech near 60 years in the biz.