I’m sure you can agree that the bathroom is not complete without a mirror. It’s a functional must-have, but also a design element that affects the balance of your space. The question is — should a bathroom mirror be wider than the sink or vanity?
Technically, a mirror can be wider than your vanity, but design guidelines recommend keeping the vanity a couple of inches wider than the mirror for balance and aesthetics.
As a rule of thumb, a bathroom mirror should be 2–4 inches narrower than the vanity. For example, if you have a 24” wide vanity, a mirror that’s 20–22” wide will look proportional and stylish.
Remember to account for frame width — a thick frame reduces usable mirror space. For small bathrooms, frameless or narrow-frame mirrors are best.
Placement is as important as size. Mount your mirror:
Symmetry is key — the human eye naturally finds balanced proportions more pleasing. If you choose an asymmetrical design, ensure balance with lighting or accessories.
In most cases, yes. Centering ensures the best visibility and reflection. However, the final placement depends on your vanity design, mirror shape, and lighting arrangement.
There’s no one-size-fits-all answer, but proportion is the guiding principle. Mirrors should generally be slightly narrower than the vanity, centered, and sized with user needs in mind. Measure your vanity first, then choose a mirror that enhances both functionality and design harmony.