PURPOSE: To improve the rigidity of a cabinet for supporting firmly a wash stand bowl.

CONSTITUTION: A pair of left and right side plates are interconnected to form a box body 2. While an end side plate 3 is disposed on the side of one side plated 1, the end side plate 3 is connected to the box body 2 to form a cabinet 4. A counter 5 in mounted to the upper ends of both side plates 1, 1 of the box body 2 and the upper end of the end side plate 3, while a wash stand bowl 6 is mounted to the counter 5 between a pair of the side plates 1, 1 of the box body 2. The rigidity of the cabinet 4 can be improved by the box body 2 provided with and formed of a pair of side plates 1, 1. Also, even if the wash stand bowl 6 is set on the counter under the condition offset in one way. the weight of the wash stand bowl 6 can be supported by pair of the side plates 1, 1 of the box body 2.