CBD Space Planning & Layout Design 5

Question 1

When planning bathroom lighting zones, which area requires the most focused task lighting for safe, accurate grooming?

Accepted Answer

The vanity mirror area at face level

Answer

The vanity mirror area requires side-lit or front-lit task lighting at face level to eliminate shadows for shaving, makeup, and grooming tasks.

Question 2

What does the net square footage of a bathroom refer to in space planning?

Accepted Answer

Usable interior floor area measured to the inside face of walls

Answer

Net square footage measures the usable interior floor area from the inside face of walls, excluding wall construction but including all interior space.

Question 3

A 'wet wall' in bathroom construction refers to:

Accepted Answer

The plumbing wall containing supply and drain pipes serving bathroom fixtures

Answer

A wet wall is the partition wall that contains the supply pipes, drain lines, and vent stacks serving bathroom fixtures, concentrating plumbing in one location.

Question 4

When designing a bathroom layout for an aging-in-place client, which modification addresses the widest range of mobility needs?

Accepted Answer

Specifying a curbless shower with a fold-down bench and grab bars

Answer

A curbless shower with a fold-down bench and grab bars accommodates standing users, seated users, wheelchair users, and those with balance or strength limitations.

Question 5

In space planning, what is the recommended minimum depth of a bathroom linen closet to store folded towels efficiently?

Accepted Answer

16 inches

Answer

A minimum depth of 16 inches accommodates folded bath towels laid flat without hanging over the shelf edge, making 16–24 inches the typical recommended range.

(CBD) Certified Bathroom Designer Practice Test

(CBD) Certified Bathroom Designer Practice Test

CBD Space Planning & Layout Design 5