Ceramic vs. Porcelain vs. Glass Subway Tile: Which Is Best?

The honest answer to "which is best" is that it depends on where the tile is going. Ceramic, porcelain, and glass all make excellent subway tile, and each one pulls ahead in different places. Ceramic gives you the widest range of glazes at the most accessible price. Porcelain is the toughest and most water resistant, so it can go almost anywhere, including floors and outdoors. Glass reflects light and adds visual depth, which makes it a standout on a backsplash or feature wall. The better question is which material fits a specific job: a kitchen backsplash, a shower wall, a floor, a feature wall, or an outdoor surface.

At Bedrosians Tile & Stone, we carry all three materials in subway format across 44 showrooms in 11 states. After 78 years of helping homeowners, designers, and contractors spec tile, we have learned that the winner is almost never the same from one project to the next. It comes down to fit. This guide breaks down how ceramic, porcelain, and glass actually perform on the factors that matter, then answers the question application by application.

One note before the numbers. The prices in this guide are general market estimates that vary by region, finish, and installer. They are not Bedrosians pricing. Use them to plan a budget, then request a quote for figures specific to your project.

Ceramic vs. porcelain vs. glass subway tile at a glance

Here is how the three compare on the decisions that matter most when choosing subway tile.

Here is the reasoning behind each of those calls, material by material.

Ceramic subway tile: the affordable, versatile option

Ceramic is the original subway tile and still the most popular. It is made from natural clays fired at moderate temperatures, then finished with a glaze that gives it color, sheen, and a water-resistant surface. That glaze is what does the work. The clay body underneath stays more porous, which is why ceramic is a wall material first.

Durability and water resistance. The glazed face of a ceramic tile sheds surface water, soap, and oils with no sealing required. The body behind it, though, absorbs more water than porcelain, which usually puts standard ceramic in the semi-vitreous or non-vitreous range under the ANSI A137.1 classification. That works for a dry or lightly wet interior wall. Outdoors in a freezing climate it becomes a problem, because absorbed water can freeze, expand, and crack the tile.

Maintenance. Low. Wipe the glazed surface clean. The one thing to watch is artisan crackle or matte ceramic, where the finish has intentional micro-cracks. Those tiles should be treated with a grout release before grouting so dark grout does not settle into the surface and stain it. That is a step for whoever sets the tile, not a reason to avoid the look.

Cost. Ceramic is the most affordable of the three, generally running about $4 to $15 per square foot for the tile itself, according to national cost data from Angi. Basic white 3x6 formats sit at the low end.

Look. This is ceramic's real advantage. Because the glaze carries the design, ceramic comes in more colors, finishes, and handmade-look textures than any other material. Our in-house Cloe glossy ceramic collection, in a curved square that reads as a fresh take on subway, shows how much personality a single glaze can hold.

Porcelain subway tile: the toughest and most water resistant

Porcelain is technically a type of ceramic, but it is engineered to a much higher standard. It uses refined clays fired at higher temperatures, which fuses the body into a dense, glass-like material with almost no internal pores.

Durability and water resistance. To be sold as true porcelain, a tile has to absorb 0.5% or less of its weight in water under the ASTM C373 test, a threshold set by the Tile Council of North America and verified through the Porcelain Tile Certification Agency. Because it holds almost no water, porcelain is frost proof and works outdoors in any climate. It is also harder wearing, so it carries the wear ratings needed for floors, which most wall-focused ceramic does not.

Maintenance. As low as ceramic. The surface is impervious and needs no sealing. Only the grout joints benefit from routine care, and that is true for all three materials.

Cost. Porcelain sits in the middle and is often the best value in the group. Tile runs roughly $2 to $15 per square foot for standard subway formats, close to ceramic, while delivering far more durability. For a side-by-side on the two clay-based materials, see our guide to the differences between porcelain and ceramic tile.

Look. Modern printing lets porcelain tile convincingly mimic marble, stone, and cement while outperforming all of them on durability. One thing to verify before you buy is that an affordable glazed porcelain will show a contrasting body color if it chips, while a through-body porcelain hides chips better. If impact resistance matters for your space, ask which one you are looking at.

Glass subway tile: the light-reflecting specialty pick

Glass is the outlier. It is not clay based at all. It is made by melting silica and cooling it into a solid, which gives it a translucent, reflective quality no ceramic or porcelain can match.

Durability and water resistance. Glass is completely impervious to water, with essentially zero absorption. Its weakness is hardness. Glass scratches more easily than porcelain and is brittle under impact and thermal stress, which is why it lives on walls rather than floors.

Maintenance. The glass face is easy to clean, but in a shower the waterproofing behind it has to be flawless. Because you can partly see through the tile, trapped moisture or discoloration in the mortar bed can show through and ruin the look from the inside.

Cost. Glass is the premium option. Material starts around $15 per square foot and climbs well past that for artisan, cast, or metallic glass, per HomeAdvisor's tile cost data. Installation adds the most of the three, which is why glass tends to appear as a feature area rather than a whole room.

Look. Depth and light. A glass subway tile backsplash bounces under-cabinet light around a kitchen and can open up a small, dark space better than any other material.

What to know about installing each material

Bedrosians supplies the tile and does not install it, so treat this as planning intelligence for hiring the right person, not a how-to. The material you pick changes the labor, the tools, and the cost, so it is worth understanding before you gather quotes.

• Ceramic is the most forgiving. Its softer body scores and snaps with a basic cutter and bonds with standard mortar. An installer can work it quickly and cleanly, which keeps labor costs down.

• Porcelain is harder to cut and bond. Its density means a motorized wet saw with a diamond blade is essentially required for clean edges, and it needs a polymer-modified mortar (ANSI A118.4 or A118.15) because standard cement will not grip an impervious surface. Labor runs modestly higher than ceramic.

• Glass is the most demanding. It calls for a rigid substrate, a bright white modified mortar troweled flat so no ridges "ghost" through the tile, alkali-resistant mesh on the substrate seams, unsanded grout so the joints do not scratch the surface, and silicone movement joints to handle thermal expansion. Those requirements are why industry groups like the Ceramic Tile Education Foundation recommend a specialist over a DIY attempt. For more on the pitfalls, see our article on installing glass tile without cracking or discoloration.

Which subway tile is best by application

Match the material to the job.

Kitchen backsplash

A backsplash is a dry, vertical, low-impact surface, so the strict performance metrics barely apply and you can choose on looks and cost. Ceramic is usually the sweet spot here because of its glaze range and value. Glass is the pick if you want to maximize light in a darker kitchen. Porcelain works too, though it is more tile than the spot strictly needs. Browse options on our backsplash tile page.

Bathroom and shower walls

Shower walls face constant moisture and thermal cycling, so water resistance leads. Porcelain is the safest choice thanks to its 0.5% absorption ceiling. Ceramic is perfectly acceptable when the glaze is intact and the waterproofing behind it is done right. Glass works beautifully as an accent, a niche backer, or a vertical stripe, though full walls of glass in a busy family shower add cost and can show hard-water scaling. Our shower wall and floor tile selection covers the wet-area options, and our guide to the best porcelain tile for showers goes deeper on wall, floor, and niche choices.

Floors

For floors, the debate collapses. Porcelain is the answer. It carries the high wear ratings and can be engineered to meet the 0.42 wet dynamic coefficient of friction that the ANSI A326.3 standard requires for safe wet floors. Ceramic is limited to light-traffic residential baths, and only when it is specifically floor rated. Glass should not go on a monolithic floor at all, because it scratches underfoot and does not provide safe traction.

Feature walls

On a dry feature wall or fireplace surround, aesthetics rule. Glass is prized here for reflective, high-impact, modern looks. Textured or hand-glazed ceramic is the counterpart when you want rustic, organic warmth that refined porcelain cannot fake.

Outdoor

Outside means UV, rain, and freeze-thaw. Porcelain is the clear winner, since its impervious, frost-proof body will not spall in winter or fade in sun. Ceramic should be avoided outdoors in any climate that freezes. Glass is frost proof but expands in direct sun, so it can be used outdoors only with a specialist following strict movement-joint guidelines.

Frequently asked questions

Can you use ceramic subway tile outdoors?

Not in a climate that freezes. Standard ceramic absorbs enough water that freeze-thaw cycles can crack it. Porcelain is the outdoor pick because its body absorbs 0.5% or less.

Do you need special grout for glass subway tile?

Yes. Use unsanded grout. The silica in sanded grout is hard enough to scratch the glass surface during application, which limits glass installations to narrow joints of about 1/8 inch or less.

Is porcelain subway tile harder to install than ceramic?

Yes, moderately. Its density requires a wet saw with a diamond blade for clean cuts and a polymer-modified mortar to bond, where ceramic can be snap-cut and set with standard mortar.

Is glass subway tile good for a shower floor?

Generally no. Standard glass does not meet wet-floor slip standards and scratches easily. Use a textured porcelain for shower floors and save glass for the walls or a niche.

Still deciding? See it in your space first

The quickest way to settle ceramic versus porcelain versus glass is to hold the tile in your hand and see how the color reads in your own light. Order $1 samples, or grab 5 free with code SHIPFREE5 and free shipping on your first sample order. You can also preview any subway tile in your actual room with our Roomvo Room Visualizer, or bring your plans to one of our 44 showrooms across 11 states and let a design specialist walk you through formats, finishes, and grout. For a few tips on getting the most out of samples, read how to sample tile and find the perfect style.