Mirror: artwork or furniture by size
Small mirror: a decorative object. Large mirror: architecture
A 40 cm mirror is an object. A 1.80 m mirror is an architectural element. Size changes everything, including the function.

§ 01The principle
According to its size, a mirror plays two completely different roles.
Small mirror (up to 80 cm). Functions as a decorative object, like a frame or artwork. Primarily aesthetic rather than spatial function.
Large mirror (1.20 m+). Functions as an architectural element that modifies the room's perception. Visually enlarges, doubles surfaces, reflects light. See also rule 05.1 on the mirror facing the window.
In a small or medium room, invest in one large mirror rather than multiplying small ones. The effect on space is incomparable.

Small mirror (up to 80 cm): object · Large mirror (1.20 m+): architecture
Two functions, two uses, never confuse them.
§ 02Putting it into practice
The small mirror. On an entrance console (60-80 cm, hung 15-20 cm above the top of the unit). In a bathroom (above the basin, adapted to the sink). On a gallery wall interspersed between frames.
The large mirror. Five strategies: facing the window (see rule 05.1), vertical from floor to ceiling leaned against a wall (see rule 05.10), horizontal above a sofa or fireplace (1.20-1.80 m width), floor-leaning psyché in a bedroom, entire wall mirror in a narrow entrance or bathroom.
Choosing the frame. Slim matt black metal or brass: contemporary effect. Thick wood (oak, walnut): warmer and Scandinavian. Gilded or patinated: classical, more formal. Frameless: ultra contemporary, almost architectural.
In small interiors. One large, well-placed mirror is the most cost-effective investment for visually enlarging the room. Prefer one large mirror well positioned over several small ones scattered around.
- 01Invest in a large mirror (1.20 m+) for the main room
- 02Small mirror only on an entrance console or as a complement
- 03Choose the frame in coherence with the room
- 04Position the large mirror to reflect natural light
- 01Multiplying small scattered mirrors
- 02Three round mirrors on the same wall in a living room
- 03A large mirror facing a dark wall (reflects nothing interesting)
§ 03Professional variations
Joseph Dirand works almost exclusively with floor-to-ceiling large mirrors, sometimes in multiple vertical panels. Ultra architectural effect.
Pierre Yovanovitch integrates flush mirrors into walls (frameless, built-in), creating forced perspective effects. Reserved for bespoke projects.
Small mirror for details, large mirror for space.
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