Boat hulls are currently usually made of fiber glass. Fiber glass is the cheapest, most effective material. Boat hulls can also be made of wood, carbon fiber, and steel.
A Trimaran is a boat with three hulls.
A trimaran has 3 hulls, a main hull and two smaller outrigger hulls.
Trimaran
Usually they are made of fiber glass, but they can be made of other materials (wood, steel, carbon fiber, etc) as well.
This type of boat is called a Catamaran.
A trimaran is a sailing yacht with three parallel hulls.
Catamaran.
4
Tri-hull
Trimaran
4
Hulls can be made from various materials, including wood, fiberglass, aluminum, and steel. Wooden hulls are traditional and offer aesthetic appeal but require maintenance. Fiberglass hulls are popular for their durability and low maintenance, while aluminum and steel hulls are favored for their strength and ability to withstand harsh conditions. The choice of material often depends on the intended use of the vessel and its required performance characteristics.