Where are floor plans typically shown in relation to the floor level?

Floor plans are typically displayed at a height of 42 to 48 inches above the floor level. This specific height is chosen for several reasons. First, it allows for easy visibility for individuals standing in the room, ensuring that the plans can be referenced without bending down or needing to look up excessively. It falls within the average line of sight for adults, making it practical in terms of design and accessibility.

Additionally, this height helps prevent obstruction from furniture or equipment that may be present on the floor. This positioning strikes a balance between being accessible and still noticeable among other features in a space. Other height options, such as below 24 inches or above 96 inches, would either be too low, making it hard to see, or too high, causing it to become inconvenient to reference during inspections or installations. Thus, the selection of 42 to 48 inches is intentional and serves the practical needs of safety and functionality within fire inspection practices.