If your bathroom vanity is too small, there are many sizes in vanities to your bathroom. When you have a small vanity, it is not as beneficial as one that if a larger measurement such as a 42 inch bath tub vanity. This size vanity is available in different styles. Some 42 inch bath vanities get double sinks which is one of the primary reasons for changing from a small vanity to a larger one particular. The extra sink allows two different people to use the sinks collectively at the same time so it can be a moment saver when used in in this way.