To keep a walkway between a pair of each other neighboring right and left laterally moving bodies behind intermediate columns, if added for reinforcement, and to uniform decks.

An intermediate column 12 is provided in front of a lowermost vehicle parking space 6, a-e rows of parking lots 24 and laterally moving bodies 26a-26d to be movable to the right and left are provided in the vehicle parking space 6 and decks 31, 32 are provided on the side of the laterally moving bodies 26a-26d to form walkways 30 between the each other neighboring laterally moving bodies 26a-26d. In the c-row and d-row of parking lots 24 behind the intermediate columns 12, the first stop position 33, where both each other neighboring laterally moving bodies 26a, 26d are divided to both right and left sides around the intermediate columns 12 and stopped behind the intermediate columns 12, and the second stop position 35, where one laterally moving body 26a approaches and moves to the other laterally moving body 26d to fill a gap between the deck 32 for one laterally moving body 26a and the deck 31 for the laterally moving body 26d, are set.