To provide a kitchen floor unit in which a drawer can be easily mounted on a place adjacent to the inner corner of the L-shaped unit and which can be manufactured at low cost.

The kitchen floor unit 10 has the inner corner C on its front side and is placed on the floor in an L shape. In a corner region where two sides constituting the L shape intersect each other, a storage unit S for the corner which occupies the space under a top plate 13 is arranged so that it may extend to a region adjacent to the corner region on one of the two sides. The storage unit S for the corner is composed of a lower storage box 11 which has a height smaller than the length from the floor to the top plate 13 and is so arranged on the floor that it extends from the corner region to the adjacent region on one side, the drawer 14 which is arranged between the lower storage box 11 and the top plate 13 in the region adjacent to the corner on one side and a spacer member 15 which is arranged between the lower storage box 11 and the top plate 13 in the corner region.