How To Cut A Mirror At Home: The Right Way

Looking at yourself in the mirror is an essential part of everyday life. It helps you style your hair, put on makeup, and dress up for the day ahead. However, mirrors can be expensive, especially if you want a custom size or shape. Fortunately, with a few tools and some patience, you can cut a mirror at home.

This DIY guide will show you how to cut mirrors at home without shattering them. Whether you’re a seasoned DIYer or new to the task, this article will provide you with step-by-step instructions, safety tips, and advice on how to handle unexpected problems that may arise.

Before You Cut: What You’ll Need

Cutting a mirror requires specific tools and materials. Before you start, make sure you have the following items:

A large sheet of mirror
Glass cutter
Ruler or straight edge
Masking tape
Safety glasses
Water or lubricant
A worktable or flat surface
A few small pieces of wood or cardboard

Preparing the Area for Cutting

Cutting a mirror can be messy, so it’s essential to prepare your work area. Place a drop cloth or old sheet on the ground to catch any glass shards. Set up your work table or flat surface in a well-ventilated area.

Measure Twice, Cut Once

Before you start cutting, decide on the size and shape of the mirror you want. Measure twice and mark the mirror with a ruler or straight edge. If you’re not confident about your ability to cut a straight line, use masking tape to create a guide.

Cutting the Mirror

Once you’ve marked the mirror, put on your safety glasses and gloves. Dip your glass cutter into your water or lubricant to help the blade glide smoothly along the glass. Score the mirror by firmly pressing down on the cutter and running it along the line. Apply even pressure throughout to avoid creating weak spots.

Next, place the mirror on a flat surface with the score line facing up. Position a small piece of wood or cardboard under the score line, and gently press down on each side of the score line. The glass should snap apart cleanly along the score line.

Finishing Touches

After cutting the mirror, use sandpaper to smooth out any rough edges. Be careful not to scratch the mirror’s surface. Sand the edges in a circular motion, and once complete, wipe away any dust or debris.

Safety Measures When Cutting Mirrors

Cutting mirrors can be dangerous, so it’s crucial to take proper safety measures. Always wear gloves, safety glasses, and protective clothing. Keep young children and pets away from the work area. Finally, make sure you dispose of any broken glass safely and carefully.

Troubleshooting When Cutting Mirrors

If your mirror doesn’t break cleanly along the score line, don’t panic. There are still a few options available to you. You can try scoring the mirror again, this time applying more pressure. Alternatively, you can use a pair of pliers to break off any jagged pieces.

If you’re struggling to make a clean cut, consider purchasing a diamond blade. A diamond blade is specifically designed for cutting glass and can make the process much smoother.


Cutting mirrors may seem like a daunting task, but with the right tools and careful preparation, it’s a DIY project that many people can successfully complete. Just remember to take your time, follow safety guidelines, and be patient – as they say, measure twice, cut once!

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