MASTER BEDROOM vanity- dealing with a tiny bathroom & have extra space in the bedroom or hallway? why not install a countertop to use as a vanity area. In this photo, a pre-made section of countertop was positioned between a side wall & closet. To provide maximum support, install using French cleats along the back wall and at least one side. As with most of these ideas, the vanity can also be used as a desk to catch up on personal correspondence.