A cremation casket includes a lid and a base. The base includes a lower member and an upper member. The lower member includes a base panel and at least first and second upstanding side wall panels. The first and second side wall panels are disposed in planes generally perpendicular to a plane in which the base panel is disposed. The upper member includes first and second upstanding side wall panels that are disposed in planes generally parallel to the planes in which the first and second side wall panels of the lower member are disposed. First and second flap panel members are also provided that are movable between the storage position wherein the base has a relatively reduced height and a used position, wherein the base has a relatively enlarged height.