A low cost automated warehouse that enables a plurality of types of stacker cranes to travel and support articles with different weights is provided. The warehouse includes a rack with multiple levels of shelves, a track along the rack at a position higher than the multiple levels of shelves, and a first and second suspension type stacker crane. The first suspension type stacker crane includes a plurality of driving trucks arranged in a traveling direction, a mast extending in the vertical direction, and a first transfer device suspended in a liftable manner. The second suspension type stacker crane includes a plurality of driving trucks whose number is smaller than the number of the driving trucks of the first suspension type stacker crane, arranged in the traveling direction, a mast extending in the vertical direction, and a second transfer device suspended in a liftable manner.