Fibrocartilage is the most suitable type of cartilage for areas subjected to heavy weight-bearing because of its dense collagen fiber content, which provides exceptional tensile strength and resistance to compression. This cartilage type is found in intervertebral discs, pubic symphysis, and menisci of the knee, where it absorbs shock and distributes mechanical loads efficiently. Unlike hyaline cartilage, fibrocartilage can withstand repetitive stress and shear forces, making it crucial in joints requiring durability and stability under pressure. Its unique structure facilitates the repair and resilience of heavily loaded regions during surgical interventions.

Reference: Gray's Anatomy, Standring S, 42nd Edition.