Floor plans are scale drawings that show the relationship between rooms, spaces and physical features viewed from above. They provide a way to visualize how people will move through the space. Floor plans are scale drawings that show the relationship between rooms, spaces and physical features viewed from above. They provide a way to visualize how people will move through the space. Floor plans allow buyers and renters to understand the essence of the property, the spaces, how the spaces interact, outlooks, and flow. The most important aspect of a floor plan is its accurate scale.