The main feature of a double-deck pontoon ship is to install a pontoon under the hull to form a double-deck structure. This design makes the boat more stable and able to provide better buoyancy support.
There is an isolation interval between the two pontoons and they float independently. This design can improve the safety and stability of the vessel to a certain extent, even if one of the pontoons is damaged, the other pontoon can continue to provide buoyancy and ensure the safety of the vessel.