What's the ideal placement for a bathroom mirror — how high and how wide relative to the vanity?

The ideal bathroom mirror should be the same width as your vanity or slightly narrower (2–4 inches smaller on each side), and centred at a height where the middle of the mirror sits at roughly eye level for the primary users — typically 57–65 inches from the floor to the mirror’s centre. Getting mirror placement right makes a surprisingly big difference in how your finished bathroom looks and functions, and it’s one of the most common details that gets overlooked during GTA bathroom renovations.

Width Guidelines

For a single vanity (24–36 inches wide), your mirror should be at least as wide as the vanity cabinet but no wider than the countertop. A 30-inch vanity looks best with a 28–30 inch mirror. For a double vanity (48–72 inches), you have two options: one large mirror spanning the full width, or two individual mirrors centred above each sink. Two separate mirrors are the more popular choice in Toronto bathroom renovations right now because they create defined zones and allow for sconce lighting between them. If you go with two mirrors above a 60-inch double vanity, each mirror should be roughly 24 inches wide with 4–6 inches of space between them for a wall-mounted sconce or simply visual breathing room.

Height Placement

The bottom edge of the mirror should sit 4–8 inches above the countertop or backsplash. For a standard 36-inch-high vanity with a countertop, that puts the bottom edge at about 40–44 inches from the floor. The top edge should reach at least 72–78 inches from the floor to accommodate taller household members. In older Toronto homes — particularly post-war bungalows in Scarborough, North York, and Etobicoke — bathroom ceilings are often standard 8 feet, which gives you plenty of room. In newer GTA condos with 8- or 9-foot ceilings, you can go taller with the mirror for a more dramatic, open feel.

If you’re installing a medicine cabinet instead of a flat mirror, the same height rules apply, but you also need to account for the cabinet depth (typically 4–5 inches). Recessed medicine cabinets sit flush with the wall and look cleaner, but they require cutting into the wall cavity — make sure there are no plumbing supply lines, electrical wiring, or structural members behind the location before cutting. A stud finder and a quick check of the plumbing layout will save you from an expensive surprise.

Lighting Coordination

Mirror placement must be planned alongside your vanity lighting. The Ontario Electrical Safety Code requires all bathroom electrical work to be done by a licensed electrician with ESA inspection, so plan the lighting location before your electrician does the rough-in. The best vanity lighting is at face level on either side of the mirror (wall sconces at 60–66 inches from the floor), which eliminates the shadows that overhead-only lighting creates. If side sconces aren’t possible — common in tight GTA condo bathrooms — a horizontal vanity light bar above the mirror should be mounted 75–80 inches from the floor, no more than 3 inches above the mirror’s top edge.

Practical Tips for GTA Homeowners

A frameless mirror with polished edges typically costs $150–$500 depending on size, while a framed mirror runs $200–$1,200 for quality options. Custom-cut mirrors from local GTA glass shops are often more affordable than big-box options for non-standard sizes and run about $8–15 per square foot for 1/4-inch glass. If you’re renovating a small powder room or condo bathroom, an oversized mirror (wider than the vanity, extending nearly wall to wall) is one of the most effective design tricks to make the space feel larger — and it costs very little compared to structural changes.

For mirror installation, a flat mirror on drywall can be a DIY project using mirror adhesive and J-channel brackets. Heavier framed mirrors or medicine cabinets should be anchored into studs or secured with appropriate wall anchors rated for the weight. If you’re unsure about what’s behind the wall, a professional installer is worth the $100–$250 installation fee to avoid hitting a water line.