The Rational 60.21.287 is a mobile oven rack designed for efficient kitchen organization. This roll-in rack accommodates up to 15 half-size pans measuring 12" x 20", making it ideal for high-volume cooking. With a spacing of 3-3/2" between shelves, it allows for optimal airflow and easy access to your dishes. Please note that grid shelves are sold separately. This item is available as a special order, ensuring you get the right fit for your culinary needs.