Mirror Magic: The Oldest Trick for Making a Small Space Feel Bigger

Part 3 of 5: How to Make a Small Space Look Bigger

If there's one universally agreed-upon trick among designers for making a small space feel bigger, it's this one. A well-placed mirror doesn't just decorate a wall — it creates the illusion of depth where there isn't any, doubling how far the eye seems to travel.

Why mirrors work so well

A mirror doesn't just reflect light; it reflects the room itself, which tricks the brain into registering additional visual depth. Placed correctly, a mirror can make a room feel like it continues beyond its actual walls.

Best placement: across from a window

The single most effective spot for a mirror is directly across from your main window. This does double duty:

• It bounces natural daylight back into the room, which (as covered in our companion series on brightening dark spaces) makes the room feel more open.
• It reflects the view outside the window, effectively giving the room a second "window" and visually extending the space beyond its actual boundary.

Other high-impact placements

• A large, tall mirror leaning against a wall — no drilling required, and the height draws the eye upward, adding a sense of ceiling height along with width.
• A mirrored wardrobe or closet door — combines functional storage with a large reflective surface, especially useful in bedrooms.
• Mirrored furniture — a mirrored console table, nightstand, or cabinet adds reflective surface area without taking up wall space.
• Behind a light source — placing a mirror behind or beside a lamp doubles the effective light in the room, similar to the effect covered in our lighting-focused posts.

Where mirrors can backfire

Mirror placement isn't foolproof. A few situations to avoid:

• Facing a cluttered or unattractive view. A mirror reflects whatever is across from it — including mess. If you mirror clutter, you've doubled the clutter visually, not the sense of space.
• Facing a blank, dark wall. Instead of bouncing light and depth, this just reflects more darkness back into the room.
• Too many small mirrors scattered without purpose. A single well-placed large mirror generally outperforms several small decorative mirrors in terms of the size illusion.

Beyond mirrors: other reflective materials

• Glass furniture — glass-top tables and glass shelving let the eye "see through" the piece, which reduces visual bulk compared to solid furniture of the same size.
• Lacquered or high-gloss surfaces — a lacquered tray, glossy cabinet door, or glossy accent piece catches and reflects light similarly to a mirror, on a smaller scale.
• Glass doors or glass room dividers, if applicable, keep sightlines open between spaces rather than creating a hard visual stop.

A quick mirror checklist

• Position at least one mirror across from your main window if the layout allows.
• Choose one large mirror over several small ones for the strongest size illusion.
• Double-check what the mirror will reflect — a nice view or tidy corner, not clutter or a dark wall.
• Consider mirrored or glass furniture in spots where you want the illusion of "seeing through" rather than a solid visual block.

Next up: Part 4 — Furniture selection and scale, where we cover why fewer, larger pieces often make a small room feel bigger than a lot of small furniture crammed in.