How to Cut Glass Tile Safely and Without Shatter

Glass tile is unmistakably beautiful, providing an artistic quality to your home, and can make the room feel bigger and brighter with its reflective sheen. Glass tile is great for accenting a variety of places, from kitchens to bathrooms, and will work wonders for many of your shower tile ideas.

Glass comes in versatile colors, is easy to maintain and clean, can be stained, and is both water and heat-resistant, all of which give it a long life span. However, glass tile costs more than other tile materials and chips easily when cutting. Read on to learn how to cut glass tile and avoid ringing up expensive project costs.

Preparing to Cut Glass Tile

Whether you're remodeling a part of your home or building a new house or an extension from scratch, there are many scenarios where you may need to cut tile. Perhaps you want to start a new tile installation project that requires cutting a few pieces, a tile piece could be damaged in some way, or you may just want to replace an old piece and have to cut the new one down to size.

Glass tile is one of the most difficult forms of tile to cut, because it chips easily and the edges can come out tagged. It is highly advisable that you hire a local tile contractor to cut and install glass tile. 

If you do decide to install and cut it yourself, know that it will be a meticulous process. Before you start cutting, measure the area you want to install and know what your layout is going to be. Finally, be sure to be wearing gloves and goggles, as shards can fly and the edges can be sharp, especially when freshly cut.

How to Cut Glass Tile

There are four different methods you can use to cut glass tile, each varying in difficulty, precision, speed, and cost.

Nippers

If you’re working with smaller tiles, one of the quickest methods is to use a pair of tile nippers. Tile nippers typically look like a pair of pliers with sharp tips at the end of the nose and are great for cutting various materials. You may want to use wheeled mosaic nippers for cutting glass tile. These glass tile nippers look like a regular pair with two cutting wheels at the end, which allow them to cut glass more effectively without chipping it. 

This trickier and more imprecise method of tile cutting works best with smaller pieces of tile that won’t be seen easily. The price of tile nippers can range from $10 to $25 for a nicer pair.

For this method, along with your nippers, you’ll need:

• Washable marker

• Straightedge

• Protective gloves and goggles

• Cloth

Put on your protective gear before you start; pieces can fly, and glass is sharp, especially when freshly cut. First, mark where you want to cut with your washable marker. Use a straightedge to make a more precise line. 

Align the nippers along the line that you want to cut. If you’re using wheeled nippers, have the wheels facing the opposite direction of the hand you're using. Then press down on the nipper handles to cut, and it will split in two. You can use the cloth to clean up the mark you drew.

Wet Saw

The wet saw is one of the most widely used tools for tiling. It can cut through harder materials like glass by using water to lubricate the blade for a cleaner cut and to prevent the machine and material from overheating. It’s one of the easiest, most precise, and most versatile options. It's great for cutting most sizes of tile and works well for cutting bigger and costly floor tile. 

For glass tile, be sure to use a diamond blade specifically made to cut glass. However, depending on the brand and power, it's also one of the most expensive options, ranging from $200 to $900 for the machine and additional equipment. Thus, it may be better to rent one, which costs around $50 to $100 per day. 

For this method, aside from the machine itself and the blade, you’re also going to need:

• Washable marker

• Straightedge

• Cloth

• Protective gloves and goggles

• Auditory protection

• Apron

• Water

Before you start, put on your protective equipment, especially your auditory protection as saws are very loud up close. Because a wet saw will splash water everywhere, set-up in a place where nothing you want to keep dry will get wet. You may also want to wear an apron. Follow the manufacturer’s instructions when setting-up and have the right blade ready to go. Fill up the tray with water to ensure decent water flow. Once it's all set up, let the saw run for 15 seconds to wet the blade.

1. Once the saw is ready, mark where you want to cut on your tile. You want to cut on the back of the tile with a wet saw to prevent chipping. 

2. Start the saw and cut your tile along the marked line, feeding the tile into the blade along a tray. Keep the tile steady as you cut, and be as gentle as possible. Don’t try to force the tile into the blade.

3. After cutting, wipe the mark off the tile if the water didn’t already wash it off. Power down the wet saw when you're all done cutting. 

For an exceptionally clean cut, you can change the setting of the blade so it only cuts half way deep through the tile. Then flip it over to the front and slowly cut the rest of the way through the tile. This method also eliminates chipping in the back, which can show otherwise. 

Scoring

Scoring is the most hands-on method of cutting glass tile and involves using a glass cutter to make a shallow cut into the tile and cleanly break it apart. This is the traditional method of tile cutting and is still widely used by some professionals today, especially for cutting smaller pieces of tile. 

Glass cutters are usually pen-like knives with a cutting wheel at the end, also called a scoring wheel. The tile can break apart through various methods, including by hand, with a pair of grozing or running pliers, or even with a tile nipper. The main upside of this method is also the main downside: you are in complete control of every cut you make. This can make it incredibly difficult, but it gives you more control over how you want it cut. 

The price can range from $10 to $25 for a glass cutter, but it costs about $10 to $25 more if you want a pair of pliers or nippers with it. 

For this method, aside from the glass cutter, you may need:

• Washable marker

• Straightedge

• Cloth

• Protective gloves and goggles

• Grozing or running pliers, or glass nippers (if you don’t want to use your hands)

Again, it’s crucial to wear your protective gear. Then mark where you want to cut before you start. Then press your glass cutter down and score along the line. Use your straightedge again for a more precise cut. 

Use your tool of choice to break the tile apart. With your hands, hold each end with your thumbs on top and pull down to break it. With pliers, hold one end of the tile and pull down the other end with your pliers until it breaks. With nippers, cut along the scoring line (like in the first method). You can use the cloth to clean up the ink. 

Manual Tile Cutter

A manual tile cutter, or bar cutter, is one of the most efficient tools for tile cutting, allowing for a precise cut without needing a large, cumbersome tool. Bar cutters have a scoring wheel that moves back and forth along a set of bars to score through a tile. Some bar cutters have parts to press down to break apart the scored tile. But even if your cutter doesn’t have those parts, it is still an easier way to score it. 

Manual tile cutters are one of the best tools to use as a glass tile cutter and are one of the most beginner-friendly methods. It’s best used for medium- to small-sized tiles for smaller jobs but can be difficult to use with large or really small pieces. The cost of a manual tile cutter can range from $25 to $100, depending on size.

Aside from the bar cutter itself, there are some other things you could need:

• Washable marker

• Straightedge

• Washcloths

• Protective gloves and goggles

Before you start, be sure to wear your protective gear and mark where you want to cut. Then align the scoring wheel along the line marked on the tile. Press down on the lever and gently guide along while you score through the tile.

After scoring the tile, if your cutter has the parts needed to split the tile, press down on the lever close to the center of the tile to snap it apart. If your cutter doesn’t have the parts, use your choice of tools to break the tile apart, whether that’s pliers, nippers, or your hands, as discussed previously. You can use the cloth to clean up the ink.

Tips for Cutting and Installing Glass Tile

If your cuts aren’t as clean as you’d like them to be, there’s always the option of using a rubbing stone. A rubbing stone is a block made to sand down edges on cut materials and is often used to smooth out jagged edges on tile. 

They’re relatively inexpensive, costing around $10 to $15, and can last around 10 to 20 years. Though they aren’t always necessary if your tile piece is out of sight, like behind an outlet, or if your grout hides your imperfections (especially if you keep your grout clean). 

Do not remove the mesh on the back if you’re working with mosaic glass tile. With that kind of glass tile, they’re linked together into sheets so that you can install large portions of it at once. Unless you’re cutting the tile along with it, you can use a utility knife to cut through the mesh. The mesh can also signify the size of the grout gaps for the tile. 

Don’t forget to keep measurements in mind. Gaps between tile pieces are usually around 1/16 to 1/8 of an inch. That may not seem like a lot, but it can drastically affect your installation by inches. Additionally, if you miscut a piece of tile, you may be able to salvage it by using it for a smaller piece in another spot in your installation. Finally, use white thin-set mortar behind your glass tiles; otherwise, the color behind the tile can show through.

DIY vs. Hire a Pro

Glass tiles cost around $5 to $25 per square foot. Doing it yourself may only cost you an additional $15 to $120 for the equipment and setting material. However, glass tile is also the most difficult to install, and it may cost more to repair or reinstall in the long run. 

If you choose to find a local tile contractor, the cost of labor can range from around $10 to $180 per square foot for installation and materials. Most professionals will cut tile as part of the installation, though some stores may not offer it. 

Roughly, the price to install a backsplash is $600 to $1,300. Installing in the shower usually costs $900 for the floor and around $2,000 for the entire shower. While it is more expensive to hire a tile pro, a contractor can get the project done faster, and you can have the peace of mind that your new tile floor or backsplash looks spectacular.