This item comes with 8 trays. This product can hold 40 full size bun pans or 80 half size bun pans, allowing you to hold twice as many full size bun pans compared to a standard open sheet pan rack! Each set of slats are spaced 1 1/2" inches apart to fit 1" high pans, supporting up to 40 lb. per shelf, which provides your delicious baked goods with plenty of room to cool. Plus, its door opens up to a 270 degree angle for easy loading! This sheet pan rack has an enclosed design that helps to keep airborne contaminants away from your food, so they can stay safe and sanitary, as well as also prevents your dough and other culinary creations from dehydrating while in storage. The design also aids in easy transportation as it prevents pans from moving around or possibly falling out. Plus, you can easily store it anywhere you'd like in your kitchen, as the doors protect your baked goods from grease and accidental spills, making it perfect for high-volume operations with limited space.