Modern room floor plan shows here. It's possible that your plans will start owithn a cocktail napkin. A floor plan can be a simple diagram outlining the layout of the rooms, however, it is usually drawn to scale. An architect may start with rough sketches on tracing paper, dubbed "bumwad" by some. As the "plan" develops, more information is added to the floor plan. Working with an architect on a project has a number of advantages, including design knowledge.