Most double ovens will fit an average-sized turkey of around 15–20 lbs. Unless you have a prize-winning heavyweight champ on your hands, you should not be concerned about cooking up Thanksgiving dinner, complete with all the fixings in your double oven range or wall oven.
Double ovens are available in the same widths as single oven models, generally 24–36 inches wide. You will be able to fit the same wide trays, pans, and other dishes you would use in your single oven. Double oven ranges can feature shorter compartments than single ovens, but most dishes cooked at home will still fit in either compartment, with tall items better suited for larger bottom ovens.