Pizza hut 79' s pizza is 9 inches. Pizza Hut 79 Pizza Tray Bottom: The normal size is 9 inches (recommended for 2-3 people) and the large size is 12 inches (recommended for 3-4 people). Pizza Hut emphasizes standardization, and every process must be carried out in strict accordance with the operating procedures, and there can be no omissions. Only in this way can the taste of each product be guaranteed to be pure and unified.