Durable and Dishwasher Safe. Designed to work with nesting pans. Rim keeps pans from sliding. Pie rim prevents warping. Specifications: 18-gauge aluminum. Built For Performance, Not for Appearance. Our products are manufactured for commercial use where appearance isn't nearly as important as performance. LloydPans is the preferred supplier for several hotel chains, commercial bakeries, and the largest franchises in the pizza industry where our products are known for their durability and chosen for exceptional culinary results.