Hull design refers to the shape and structure of a boat or ship's body, which is crucial for its performance in water. The hull affects how the vessel moves through waves, its stability, and its overall efficiency. Different types of hull designs, such as displacement hulls and planing hulls, serve various purposes, from fishing to racing. The materials used in hull design also play a significant role. Common materials include fiberglass, aluminum, and wood, each offering unique benefits in terms of weight, durability, and cost. Effective hull design balances these factors to ensure safety, speed, and comfort on the water.