This simple island kitchen design includes extra space for meal preparation, cooking, gathering for casual meals or coffee breaks, and even additional storage. Aside from its many practical applications, the island can also be used as a decorative focal point in the room. A simple island kitchen plan opens up a world of kitchen use possibilities. The island could be outfitted with appliances and used as a cooking area. To be useful, a kitchen island should be at least 4 feet long and 2 feet wide, but preferably larger. We recommend a mobile butcher block station or a simple table if you have a small kitchen with limited space.