Subway tile — the classic 3x6-inch rectangular format, though the name now covers a wider range of proportional sizes — has stayed a staple of bathroom design for more than a century because it hits a rare combination: genuinely low cost, a huge range of pattern options, and a proven track record in wet, high-traffic spaces. It's a mid-size format, smaller than large-format porcelain and larger than mosaic, which gives it flexibility that neither extreme has.
In a Southwest Washington shower, subway tile's biggest practical advantage is how well-understood the installation is — the pattern options are well documented, the grout-line spacing is standard, and it doesn't demand the ultra-flat substrate that large-format tile requires. That makes it a lower-risk, lower-cost path to a shower that still looks intentional and well-designed.
Running bond (classic offset)
Each row offset by half a tile from the row below, the pattern most people picture when they hear 'subway tile.' It's simple to lay out, forgiving of minor wall irregularities, and reads as timeless rather than trendy.
Stacked (grid)
Tiles aligned directly on top of one another rather than offset, creating a cleaner, more modern grid look. It demands a slightly flatter, more precisely plumbed wall than a running bond pattern to avoid visible misalignment, since there's no offset to disguise minor variation.
Herringbone
Tiles set at an angle in an interlocking zigzag, often used as a feature wall or shower floor accent rather than across an entire shower. It's more labor-intensive to lay out and cut than a running bond or stacked pattern, which shows up in the installation cost.
Vertical stack
The same tile turned 90 degrees, laid in vertical columns rather than horizontal rows. It's a popular way to visually add height to a shower or bathroom with a lower ceiling, using the same tile and grout budget as a horizontal layout.
The traditional subway tile is 3x6 inches, but the category now commonly includes 4x8, 4x12, and other elongated rectangular proportions — all installed with the same basic pattern logic even as the exact dimensions vary. Larger subway-proportioned tile (like 4x12) reduces grout lines somewhat compared to the classic 3x6 size while still staying well within standard substrate-flatness tolerances, unlike true large-format tile.
Finish-wise, subway tile ranges from a classic glossy ceramic (the traditional look) to matte and textured porcelain finishes that read as more contemporary and, on shower floors, offer better slip resistance. Beveled subway tile — with a slightly raised, angled edge — adds shadow-line texture that plain flat tile doesn't have.
Grout color is one of the highest-impact, lowest-cost decisions in a subway tile shower. A matching or near-matching grout color creates a seamless, monolithic look that makes the wall read as one continuous surface. A contrasting grout — dark grout with white tile is the classic combination — makes the pattern itself the visual feature, emphasizing the geometry of whichever layout you choose.
Whichever color you choose, the grout type matters as much as the color for long-term performance: cementitious grout needs periodic sealing to resist staining and moisture in our climate, while epoxy grout costs more upfront but resists both without ongoing sealing — a detail covered in full in our showers and tile pillar guide.
Subway tile's biggest maintenance factor isn't the tile itself — porcelain and most ceramic subway tile hold up well to daily shower use — it's the grout, and specifically how much grout linear footage the pattern creates. A classic 3x6 running bond pattern has considerably more total grout than a 4x12 stacked layout of the same wall area, which means more resealing and cleaning over the years, even though the tile itself is identical.
Regardless of pattern, running the bathroom fan after every shower to clear humid air matters more to keeping subway tile grout mildew-free than any single product choice — a point our showers and tile pillar covers in more depth alongside ventilation sizing.