Disclosed is a box assembly including an exterior piece comprising a middle portion, and an upper portion joined to the middle portion; and an interior piece positioned within the exterior piece, the interior piece defining a cavity and comprising a side panel, the side panel comprising a top interior portion, the side panel and the middle portion of the exterior piece defining a space therebetween, the upper portion of the exterior piece covering the space and the top interior portion of the side panel, and a bottom panel joined to the side panel.