In architectural drafting, what is primarily shown in the floor plan?

The floor plan is primarily a detailed representation of the interior layouts and dimensions of a space within a building. It provides a two-dimensional view that illustrates the arrangement of rooms, walls, doors, windows, and other important features. This allows architects, builders, and clients to visualize how the space will function and how different areas of the building will relate to each other.

While structural elements, mechanical systems, and lighting systems might be included in more comprehensive designs or in separate plans, the primary purpose of the floor plan is to convey information regarding the distribution and proportions of interior spaces. This focus on layouts and dimensions is essential for both construction and design purposes, ensuring that all elements fit together properly and that the intended use of the space is well-planned.