Maybe a pointed hull will work the best
The larger the ship or boat and the more water it displaces, the more it can carry. Super tankers probably carry the most weight now. Barges also carry a lot of weight because there is no space taken up for engines and living space.
An arched bridge.
filament tape duct tape
a barge.
its duct tape
The weight of the boat.
Squared and triangles
A big one with lots of freeboard and either inboard engines or an outboard platform like the offshore center-console fishing boats have. How they calculate the safe capacity of a boat is simple: they put the boat in the water and add weight until water comes in to determine the displacement weight. Then they divide by five to reach the safe weight capacity. Therefore it stands to reason that the farther you can push the boat into the water before it sinks, the more safe weight it can carry.
The maximum weight and/or number of people the boat can carry safely.
A barge can be pretty handy for tough loads.
displacement sailboat