To provide a container having a fully openable structure in which the sides of the upper frame at the side provided with side covers are removed, in which deformation is effectively prevented and the side cover can be simply and easily opened or closed and which can be stably stacked.

In this container, the side cover 6 and the side plate 36 of the lower side than an opening are rotatably connected through a link 7, and the link 7 and the lower side plate 36 are rotatably connected by a first shaft 71. The link 7 and the side cover 6 are connected so as to rotatably and drawably upward pull out the side cover 6 by a second shaft 72 passing through a long hole of the side cover 6. Further, an engaging part 81 fixing the movement in both longitudinal and lateral directions and releasing the engagement in the drawn state is provided between the side cover 6 and the side plate of both sides of the opening. Moreover, a fixing structure fixing the horizontal movement in a state that the side cover 6 is closed and in a stacked state is provided at the corner of the upper frame and the bottom plate.