The place to start when you are designing your dream kitchen is with a dimensional diagram of your kitchen space. On a large piece of graph paper, draw the outline of the kitchen space, including any doors or windows that you will have work around while you design your kitchen. Accurately mark where your plumbing and electrical supplies are located. You can move plumbing and electrical supply points, but this involves more time and money, and it is always easier to accommodate existing service supplies into your design, if practical.
How is it done? Here is how to design a kitchen online using one of the online kitchen design services offered by some kitchen cabinet manufacturers. Keep in mind that when doing this, your cooker, oven or hob is not included, and neither are washing machines and dishwashers. You must make space for these in your design. Here is what you have to do: Draw Up a Floor Plan _ First measure the size of your kitchen: the width of each wall and the floor area available and draw a diagram of this to scale. It is easy to do if you use graph paper or your supplier may offer a floor plan service. You can then select the various cabinets fit the space available to you. Leave free wall space for a table and floor cooker unit if you need them, and identify the space you want filled with kitchen units.