Which drawing type primarily indicates the arrangement of furniture within a space?

The correct choice accurately identifies the drawing type that showcases the arrangement of furniture within a space as floor plans. Floor plans are two-dimensional representations that provide a bird's-eye view of a room or building layout, including walls, doors, windows, and, importantly, the placement of furniture. This type of drawing allows designers, architects, and clients to visualize how a space will function, how it will be utilized, and how the furniture will fit within the context of the overall design.

In contrast, detail drawings focus on specific construction elements or features, such as joinery or finishes, providing a higher level of detail for particular components but not the overall arrangement of furniture. Elevation views depict vertical surfaces and façades of a structure, showing height and appearance but not the furniture layout. Blueprints serve as technical drawings for construction purposes, often containing multiple views and details but are less focused on furnishing arrangements. Hence, floor plans are the ideal choice for indicating how furniture is positioned within a space.