To provide a shelf member whose use can be freely changed just by changing parts in the case of changing the use later, and a shelf, a draining rack, a book stand and a storage box using the shelf member.

The shelf member 1 is constituted of a back plate part 2 and a bottom plate part 3 disposed at the lower end part of the back plate part 2, and a plurality of screw hole parts 2B and 3B for attaching attachments are opened at the plane part of the back plate part 2 and the side parts 2A and 3A of the back plate part 2 and the bottom plate part 3. By connecting appropriate attachments, the shelf 10, the draining rack, the book stand 20 or the storage box is formed.