Winco #ALXP18126P - Full size sheet pan is constructed of a 3003 series aluminum alloy, which is more durable than regular aluminum. Reinforced by a galvanized wire, the edges of the pan resist bending. Its baking surface has tightly packed, 1/8"  holes that provide airflow and help bake crispy products.

• Made of 16-ga. 3003 aluminum.
• Perforated with 1/8 in. holes for air circulation.
• Overall dimensions: 26" L × 18" W