Ideally, a space of 42 inches between countertops is recommended. However, if achieving this is challenging, a minimum of 39 inches can still work. By assessing these parameters, you can determine the maximum size of the kitchen island that your space can support. A well-planned kitchen remodel can fit in a kitchen island and enhance the overall flow between your kitchen and the living room or main areas of your home. You may be able to remove a neighboring wall to allow room for an island and improve the flow from your kitchen to surrounding rooms.