PURPOSE: To make smooth the sliding-transfer of a door and increase the degree of freedom about the installation layout within a room, regarding a door structure provided with a container combined with a sliding door for the opening through which one can enter.

CONSTITUTION: A horizontally bridged material 4 is laid between a side plate 1 and a partition plate 2 erected with a distance and a frame unit 9 is installed, which is composed of an intermediate vertical frame material 10 fixed at the opposite side face against the horizontal material 4 of the partition 2, an external vertical frame material 11 arranged with a specified distance at the opposite side of the side plate 1 against the partition 2, and horizontal frame members 12 connecting both vertical frame materials 10, 11. A rail 14 suspending the door 20 so as to slide it, is laid down between the side plate 1 and the external vertical frame material 11 by supporting it at the middle part by the horizontal material 4 and the intermediate vertical frame material 10. A rear side plate 28 forming a door-containing space 31 in the frame unit 9 is fixed, and a container box body 33 is fixed at the opposite side of the rear side plate 28 of the frame unit 9.