Interior Design Interior Design Space Planning & Ergonomics 2

Question 1

What is the standard recommended height for a bathroom vanity countertop in contemporary US residential design?

Accepted Answer

34–36 inches

Answer

Contemporary bathroom vanities are typically 34–36 inches high (comfort height), up from the older standard of 30–32 inches, for improved ergonomics.

Question 2

In open-plan residential design, which technique is most commonly used to define separate functional zones without building walls?

Accepted Answer

Using area rugs, furniture arrangement, and lighting zones

Answer

Area rugs anchor furniture groupings, furniture placement creates implied boundaries, and differentiated lighting defines activity zones in open plans.

Question 3

What is the recommended minimum depth for a residential bedroom closet to hang clothing?

Accepted Answer

24 inches

Answer

A minimum depth of 24 inches is required to hang standard garments perpendicular to the closet rod without the clothing touching the back wall.

Question 4

The proxemics concept in interior design addresses which aspect of space planning?

Accepted Answer

Human territorial and personal space needs in social settings

Answer

Proxemics, developed by Edward Hall, studies the effect of physical distance on human interaction and informs furniture placement for conversation and privacy zones.

Question 5

What is the standard recommended seat height for a bar stool paired with a 42-inch bar counter?

Accepted Answer

30–32 inches

Answer

Bar stools with 30–32 inch seat heights are standard for 42-inch bar counters, maintaining a comfortable 10–12 inch gap between seat and counter surface.

Interior Design Practice Test

Interior Design Practice Test

Interior Design Interior Design Space Planning & Ergonomics 2