Simple floor plan may provide a nice, welcoming environment while reducing monthly mortgage payments to a minimal. What constitutes a "simple" floor plan? A single low-pitch roof, a regular form with few gables or bays, and little detailing that does not need any special talent. In architecture and building engineering, a floor plan is a drawing to scale that displays the relationships between rooms, spaces, traffic patterns, and other physical features at one level of a structure from above. Dimensions are typically drawn between the walls to illustrate room sizes and wall lengths. Floor plans may also include information about equipment such as sinks, water heaters, and furnaces. Floor plans may incorporate construction details such as finishes, construction methods, or electrical device symbols.