Floor plan symbols are a visual language used in architectural and construction drawings that depict real building elements in a straightforward, standardized manner. Rather than write long descriptions, walls, doors, windows, stairs, plumbing, electrical points, and furniture are represented by lines, shapes and icons. This assists the architects, engineers, contractors, and home owners to know the layout quickly. As an illustration, the door symbol depicts the direction of the door swing, whereas the window symbol depicts size and position. Switches, lights, and outlets are labeled with electrical symbols and sinks, toilets and drains are labeled with plumbing symbols. These symbols are used according to the industry standards, which means, a majority of the professionals will understand them in the same manner. Understanding floor plan symbols will enable you to understand drawings properly, prevent construction errors, estimate materials properly, and communicate with building professionals and designers more effectively when working on a project.