There are two types ofdesigns: planing and displacement.
There are four basic hull shapes found on recreational watercraft:
Flat Bottom – Found on fishing boats. They are best in calm, shallow waters.
Round Bottom – Found on canoes. These boats glide slowly through the water with little effort. They do roll easily, so use caution when entering, exiting, loading or unloading the boat.
Deep-V Hull – Found on powerboats. These boats move smoothly through rough water at high speeds. They generally have a larger engine.
Multi-hull – Found on catamarans and pontoon boats. These boats are very stable but have a wide turning and steering radius.