Diversify your grilling menu with the Brinkmann 13 in. Round Ceramic Pizza Stone. The perfect size for frozen pizzas, this sturdy, durable cooking accessory will turn gas or charcoal BBQ into a flat, evenly heated pizza oven and have you churning out pizza in no time.BRK8129229S. 8129229S. Brinkmann Brinkmann 812-9229-S Pizza Stone.