This pizza stone is intended for use as an upgrade to the one that came with your countertop pizza oven. This pizza baking stone is the perfect size for your DPO-18-S, DPO-18-DS, or DPO-18-DD pizza oven, or similar deck ovens that require an 18" x 18" stone deck. Supply your pizzeria, restaurant, or bar with a durable, cost-efficient pizza stone like this Avantco cordierite pizza stone!