Interior Design Interior Design Space Planning & Ergonomics 3

Question 1

Which drawing type shows a room as if viewed from above with the roof removed, indicating furniture placement and spatial relationships?

Accepted Answer

Floor plan

Answer

A floor plan is an orthographic top-down view showing walls, doors, windows, and furniture layout, and is the primary space planning document in interior design.

Question 2

What does the term 'net square footage' refer to in space planning?

Accepted Answer

Usable interior floor area excluding walls and structural elements

Answer

Net square footage is the actual usable floor area within a space, measured inside walls and excluding structural elements, used for programming and furniture planning.

Question 3

In commercial interior design, what does the acronym RSF (Rentable Square Footage) include that USF (Usable Square Footage) does not?

Accepted Answer

A proportionate share of common areas such as lobbies, corridors, and restrooms

Answer

RSF includes USF plus the tenant's proportionate share of building common areas, which is why tenants pay rent on more square footage than they directly occupy.

Question 4

What is the primary purpose of creating a bubble diagram early in the interior design space planning process?

Accepted Answer

To explore adjacency relationships and functional zone organization before detailed planning

Answer

Bubble diagrams use abstract shapes to test how different spaces relate to each other in terms of proximity, access, and flow before committing to a formal layout.

Question 5

According to NCIDQ ergonomic standards, what is the recommended knee clearance height under a desk for a seated user?

Accepted Answer

27 inches minimum

Answer

A minimum knee clearance of 27 inches high is required under work surfaces to allow comfortable seated positioning for users of average height.

Interior Design Practice Test

Interior Design Practice Test

Interior Design Interior Design Space Planning & Ergonomics 3