Bake 4 Sourdough Loaves at Once, or Two Pizzas Side by Side The Baking Steel Plus (15" x 20") is a 22-pound slab of solid carbon steel built for open baking bread and making multiple pizzas at once. Bake 4 sourdough loaves simultaneously or two 12-inch pizzas side by side with the same blistered crusts, explosive oven spring, and even heat that made Baking Steel the #1 choice for serious home bakers and micro bakeries. Steel conducts heat 20 times faster than ceramic , delivering bakery-quality results in a home oven. Pre-seasoned and ready to use right out of the box. Made in the USA. Lifetime warranty. Perfect For: Micro bakers who sell bread and need to scale production without commercial equipment Serious bread bakers who want to open bake multiple sourdough loaves at once Pizza party hosts cooking for crowds — two pizzas at a time Home bakers upgrading from Dutch ovens to faster, mo