A:Answer It's 12.5" W x 12" D x 5.5" H on the interior. I've used my 9" round x 3.5" high Corningware casserole in it a few times. That's measuring from when the rack is in the lowest slot position. A 12" round pan comes included, also a 12" x 10" square pan, one rack and of course a removable crumb tray (could also be used as a cookie sheet). There are three positions for the rack with reversible rack options. Included was a parts order form with an option to purchase more of any of those I listed above. They range from $14.00 to $19.00. I may order another rack since it's capable to use two at the same time. Hope that helps!
