First, draw a box, noting the measurements on all sides. Whether you create it on a computer program or hand draw it on graph paper, having a scale floor plan is helpful for space planning. Most of the time, converting feet to inches at a 1:1 scale is easiest. For example, a living room that measures 16 feet by 10 feet would convert to a 16-by-10-inch box. Then measure any furnishings that you`ve decided to include and create a separate uniquely-sized box for each piece. If drawing by hand, one idea is to create paper furniture cutouts (to scale) so you can play with different furniture arrangements.