Which document is used to depict the exterior or interior walls of a building?

The most appropriate document used to depict the exterior or interior walls of a building is an elevation drawing. Elevation drawings provide a view of the building from the side, showcasing the vertical elements such as the height of walls, windows, and doors. They allow for a clear visualization of the exterior appearance and can also highlight architectural details, materials, and textures used in the walls.

In contrast, a floor plan outlines the layout of the building from a top-down view, highlighting relationships between rooms and spaces but does not illustrate vertical wall details. A detailed drawing typically focuses on specific components or features, providing intricate details but not specifically depicting walls as a whole. Sectional drawings represent a "cut-through" view of a building, showing internal arrangements and wall sections, but are not primarily used to display the external facade or general wall layout like elevation drawings do.