How to Cut a Mirror With a Wet Saw

Written By
Danny Donahue
Danny Donahue
Published: Jan 15, 2011
Updated: Nov 20, 2021
1 minute read

Instead of purchasing a new mirror, you can cut the mirror you already have to make it fit the size and shape you need. Since mirrors are basically glass with a reflective backing, you can cut them with a diamond-tipped wet saw blade.

Things You Will Need

  • Tape measure
  • Fine-point marker
  • Duct tape
  • Wet saw with diamond-tipped, fine-point blade
  • Window cleaner
  • Paper towels
  1. Stretch the tape measure across one side of the mirror. Place a dot at the appropriate measurement. Mark the opposite side of the mirror with your fine-point marker.

  2. Stretch duct tape between the dots. Press the tape firmly against the mirror. Place another piece of tape parallel to the first, leaving a 1/8-inch gap between them where the cut needs to be made.

  3. Turn on the wet saw and let the blade come to full speed. Push the mirror slowly into the saw, keeping the blade between the pieces of tape.

  4. Remove the tape from the finished piece of mirror. Spray window cleaner onto the mirror. Dry with paper towels.

The Drip Cap

  • Mirrors have always been popular wall decorations.
  • Instead of purchasing a new mirror, you can cut the mirror you already have to make it fit the size and shape you need.
  • Stretch the tape measure across one side of the mirror.
  • Turn on the wet saw and let the blade come to full speed.
Danny Donahue

After learning electronics in the U.S. Navy in the 1980s, Danny Donahue spent a lifetime in the construction industry. He has worked with some of the finest construction talent in the Southeastern United States. Donahue has been a…

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