A method for forming a container having container side walls and a lid. The container side walls have end edges. The lid has a central panel, side panels attached to the central panel by score lines, and an annular crushed area conterminous with the score lines in the central panel. The liners and the corrugated material are crushed together in the crushed area. In the method the container walls are opened, the lid blank and the container walls are moved relative to each other until the end edges of the container side walls are aligned with the crushed area, the container side walls and the lid are moved relatively toward each other until the container side walls are seated in the crushed area, the lid side panels are folded onto the container side walls and fastened to the container side walls. In one embodiment the lid is of fiberboard material and the side walls of the container are aligned with the score lines of the lid.