The Naturals® bakeware Big Sheet with Lid is designed for those who love baking and cooking in large batches. Whether you're preparing cookies, sheet cakes, roasted vegetables, or savory meals, this extra-large aluminum pan ensures even heating, durability, and top-tier performance for all your baking needs. Made from pure, uncoated aluminum, this pan heats quickly and evenly, providing consistent browning. Oven-safe up to 500°F (260°C) and broiler-safe, making it ideal for high-heat cooking. The encapsulated steel rim prevents warping, ensuring lifetime durability. It comes with a convenient BPA & melamine-free lid for transporting and storing your baked goods. Keep your food and treats fresh, prep and store ingredients, or just make transportation easy. Proudly American Made since 1946, our aluminum bakeware-quality pieces are made to withstand a lifetime of use in your home kitchen. Pan exterior measures 21 x 15 x 1 inches and has a cooking surface of 20.3 x 14.3 inches. Lid measures 21.5 x 15.2 x 1.5 inches (lid is not oven-safe). The pan and lid assembled measure 21.5 x 15.2 x 2.2 inches.