A container and a blank for making it. The container is constructed from a single sheet of foldable material and has a bottom wall, a top wall, first and second front wall panels, a back wall, and side flaps extending from opposite ends of the bottom, top, and back walls, and from the first and second front wall panels. The top wall is secured to the container by a tear-out panel extending from the top wall into the back wall and by frangible side flap portions in the side walls, whereby the tear-out panel may be grasped and lifted to lift the top wall and break the frangible side flap portions, completely freeing the top wall from the container by the single step of grasping and tearing out and lifting the tear-out panel to pivot the top upwardly. A blank and method of assembling and erecting the blank to form the container also are disclosed.