The Rational 60.21.288 is a mobile oven rack designed for efficient organization and accessibility in professional kitchens. This roll-in rack accommodates up to 16 half-size pans measuring 12" x 20", making it ideal for high-volume cooking and baking. With a spacing of 3-1/2" between shelves, it allows for optimal airflow and even cooking. Please note that grid shelves are sold separately, providing flexibility to customize your setup according to your needs. This durable and mobile design enhances productivity and streamlines kitchen operations.