Which of the following types of tile is most resistant to scratching?

Unglazed porcelain tile is recognized for its exceptional resistance to scratching due to its dense, hard composition. This type of tile is produced through a process that involves high-temperature firing, resulting in a very strong and durable material. The body of the tile itself is created from refined clay and minerals, making it inherently more resilient than other tile types, especially under abrasive conditions.

Vinyl tile, while popular for its ease of installation and maintenance, is generally softer and can be more susceptible to scratches from furniture or heavy foot traffic. Glazed ceramic tiles, while having a protective glaze that enhances their appearance and makes them easier to clean, can be less resistant to scratches since the glaze can wear off over time. Wood tile, although visually appealing and favored for aesthetic purposes, is also prone to scratching, as wood is a softer material compared to porcelain.

Thus, ungazed porcelain tile stands out as the most scratch-resistant option, making it suitable for high-traffic areas and environments where durability is a priority.