Greetings all, Stupid question... I'm using the rule of thumb that says deck plans should have twice the number of squares of the tonnage. So a 400-ton ship would have 800 one point five metre squares. (I note that's now formally stated in T5.) So if I have four decks of 200 squares and a fuel deck (not shown on the plans) as well. That's NOT a 400 ton ship but a 500 ton ship, right? Or doesn't fuel space count for these purposes? tc