Megayacht hulls are typically made from fiberglass, aluminum, or steel, and the choice of material will depend on the budget, yacht design, and how the owner wishes the vessel to perform.
Fiberglass
A fiberglass hull is known for its excellent sea-keeping capabilities and ease of maintenance.
Aluminium
Aluminum offers excellent strength and durability. As a relatively lightweight material, it also provides better fuel economy and enables a yacht to reach higher speeds.
Steel
Steel is an exceptionally strong and durable material with high resistance to abrasion, making it popular with ocean-cruising yachts, especially expedition vessels. However, it is heavier than fiberglass or aluminum, making it less popular with owners wishing to build a yacht where speed is a priority.