To make the accommodating amount of a storage shelf large by making the clearance formed between stored objects and shelf boards above the stored objects small and to make it easy to clean the shelf boards by making it easy to take out the stored articles from accommodating spaces.

A plurality of dowels 3a, 3b is arranged in both inside faces of storage portions 1 whose front face is open. Concave portions 7a, 7b elongate in a fore and aft direction are formed in locations corresponding to the dowels 3a, 3b of both the inside faces of the shelf boards 2 held between both the inside face of the storage portions 1. The upper bottom face portions 8 of each of the concave portions 7a, 7b is mounted on the dowels 3a, 3b so as to be able to move in fore and aft directions. The shelf boards 2 can be put out and put in from accommodating position where they are accommodated in the accommodating portions 1 to projecting positions where they project forward from the front face opening 1e of the storage portion 1.