HearthKit 20-1/2-Inch Oven Insert Turn your oven into a brick oven with this unique patented design Juicy roasts, poultry with crisp skin, breads with crunchy crusts, evenly baked cakes, perfectly browned pies and casseroles, pizzeria style pizzas 3 interlocking pieces assemble in less than 60 seconds; remains in your oven; maintenance-free Includes multi-purpose rack, instructional video, and Use & Care Guide with recipes To select the right size HearthKit for your oven, measure width between oven rack supports. 20.5"w x 14.75"d x 7"h. 33 pounds