When deciding on installing kitchen islands there are things to be considered such as what are you planning to use it for, do you need more countertop space, or maybe more cabinet storage space.
Another option to consider is whether you want the kitchen islands to be a permanent fixture such as a solid countertop for preparing dishes or maybe a kitchen cabinet.
You can also opt to have portable kitchen islands, maybe a kitchen cart, which you can wheel around as you work or folding kitchen islands that you can fold up.
Another point to consider is the space between the kitchen islands, which would really depend on the amount of space you have in your kitchen, this space should be big enough to be comfortable to move around while you access the refrigerator, stove, sink, etc.
You will definitely have to do some measuring of your kitchen space to determine where would be the best place to install your kitchen islands and how big an island.
you will have to decide whether you want this island to match with the other furniture that is already installed in your kitchen or do you want a design that will make a statement all on its own.
There are virtually hundreds of different types of kitchen islands for you to choose from such as Granite Top Kitchen Islands, Folding Kitchen Islands, Kitchen Work Centers, Buffets and Hutches, Butchers Blocks, Tables and lots more to choose from.