Building a mega yacht involves using various materials like wood, steel, aluminum, and composites such as fiberglass, GRP, and carbon fiber. Hull designs vary depending on whether the yacht is a motor or sailing vessel. Sailing yachts might have monohull or multi-hull designs, while motor yachts can feature displacement, semi-displacement, or planing hull forms. Recent advancements in naval architecture have driven innovations in hull design, catering to the rising demand for luxury vessels that prioritize speed and performance.