A basic home plan is a simple two-dimensional (2D) line drawing that shows a structure's walls and rooms, as seen from above. As you will see from the basic home plan example diagram, a floor plan is like a map, with lengths and widths, sizes and scales of how far apart things are. It should be noted here that walls, doorways, and windows are drawn to scale, meaning proportions are accurate even if a scale designation is not indicated. The basic home plan example diagram shows how floor plans use stylized symbols that often look like the outlines of elements they represent. Tubs, stoves, sinks, and stairs are familiar examples. These can appear along with built-in interior design elements, like appliances, islands, cabinets, and bookshelves.