How to Size a Bathroom Vanity Bar Light Over a Mirror

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Things You'll Need

  • Pencil and paper

  • Tape measure

It's important to measure the space above your bathroom mirror to ensure a proper fit.

A bathroom vanity isn't complete without a light over it. It's important to choose not only proper lighting that helps you see while applying make-up, styling your hair or shaving, but also lighting that fits properly over the mirror. A light that is too large can cause a glare and one that is too small will not properly illuminate the room or your face.


Step 1

Measure the width of the mirror and write the measurement down.

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Step 2

Measure the space between the mirror and the ceiling. If it isn't a large space, you must be certain that there is room for the fixture. Most light bars require at least 6 inches between the top of the mirror and the ceiling for proper installation.


Step 3

Strike a line with a pencil about 2 inches above the mirror, across the top. Strike another line, parallel and above the first, to indicate where you will place the light bar.

Step 4

Measure your light bar and make sure it isn't too long for the mirror or too wide for the space between the mirror and the ceiling.


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