PURPOSE: To store a long article by constituting respective circulation shelves with an endless circulation conveyer having a horizontal reverse turn shaft and travelling vertically and parallelly so as to drive individually at every floors, in a storing facility having a circulation shelf unit with multi-steps.

CONSTITUTION: Horizontal conveyers P1-P4 are installed on the frame consisting of steel beams 1, 2 and a group of shelves R1-R4 are moved along a horizontal track respectively. On respective shelves R1-R4, a group of containers B are arranged removably or replacably so as to accept storaging goods. Respective conveyers P1-P4 are driven by independent motors M1-M4 at every floors respectively. All reverse turn places of respective conveyers P1-P4 are arranged in the common vertical surface and a shelf control device 3 for loading and unloading and tables 4 are arranged in its vertical surface. By this constitution, long objects can be stored.