How to Cut a Round Mirror

Cut your mirror yourself to save money.
Cut your mirror yourself to save money. (Image: mirror,mirror... image by Catabu from

Cutting glass is easier than you may think. You may have a rectangular or square-shaped mirror that you want to change to a round-shaped mirror. Before going to a professional glazier or buying a new one, do it yourself. Having the proper tools will make this very easy to do. Cutting your own mirror will also save you money.

Things You'll Need

  • Circular glass cutter
  • Protractor
  • Washable glass marker
  • Rubbing alcohol
  • Sand paper
  • Goggles
  • Gloves

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Put on protective eye gear.

Clean your mirror of any debris with rubbing alcohol. This is very important because if you neglect to do so, it may cause the mirror to break unevenly where you are trying to cut.

Draw out the circle in the size you want to make it. To get an even circle, attach a washable glass marker to a protractor and draw it onto your mirror.

Using your circular glass cutter, begin to score the glass, applying even pressure. The circular glass cutter has a rubber piece that will attach in the middle of your circle, holding it in place in the center.

Break the mirror where it has been scored over a garbage can. Make sure you have your protective gloves on.

Start sanding the edges with sand paper. Sand in a downward motion. If you sand upward, it may cause pieces to break off, ruining the cut.


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