25 Depth

The distance from top to bottom or front to back.

Usable space is at a premium in most projects, and depth, both real and implied, has the ability to make small spaces seem larger, make entrances more emphatic, or create opportunities for seating and rest in places carved into windows, walls, floors, or ceilings.

Depth can also be emphasized through the layering of elements, or by using dark colors or reflective surfaces. Painting a wall a deep shade can visually push that element further away from the viewer. Reflective surfaces, mirrors, or translucent surfaces can add implied space to a wall surface—especially when luminous materials are used, or backlighting creates the illusion of ...

Get Universal Principles of Interior Design now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.