Abstract: The present invention provides a variable dry wall for partitioning a space in a structure into several sections. The variable dry wall of the present invention includes runners, which are respectively provided on the ceiling and the floor of the structure. A guide slot is formed in the surfaces of respective runners that face each other. The variable dry wall further includes a stud, which is inserted at opposite ends thereof into the guide slots of the respective runners, such that the opposite ends of the stud are supported by the respective runners, a fastening means, which is provided on each of the opposite ends of the stud and is locked at an end thereof to the guide slot of the corresponding runner, so that the stud is fastened to the runners, and boards, which are coupled to respective opposite surfaces of the stud using screws.