A pizza box carton is disclosed wherein identical molded insulation carton halves enclose a conventional takeout pizza box so that the carton is in a tight, non-slidable, interfit relationship so as to prevent the pizza box with a pizza therein from sliding and leaking, while preventing heat loss. The carton halves are of interchangeable design so as to reduce cost and render assembly easy, as well as being reusable. The present construction is useful with other boxed hot or cold items.
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