To take measurements of your kitchen, start by drawing a scale plan of the room on graph paper. Measure the length and width of each wall, as well as the height of the ceiling. Also note the location of doors, windows, and electrical outlets. Measure the dimensions of existing appliances and furniture you plan to keep accurately. Then, use these measurements to create a detailed layout plan of your new kitchen, taking into account space needed for comfortable circulation and work. Don't forget to consider elements like ducts, pipes, and non-square corners that might affect furniture placement.