To provide a shelf device corresponding to various places being different in height and interval, etc.

In the shelf device, a shelf provided with an upper plate 1, support crosspieces 11 to be fitted on the rear surface of the upper plate 1, side plates 16, an end rail 9 and a rear plate and containing furniture 8 provided with connecting plates 6 where fitting places 7 corresponding to the support crosspieces 11 of the shelf are formed the side plates 5 connected by the connecting plates 6 and shelf plates 20 are adopted as configuration members. Then, the shelf and containing furniture 8 are properly combined so as to form the shelf device.