Can you use subway tile on a bathroom floor? While subway tile is a classic choice for kitchens and entryways, its suitability for bathroom floors depends on proper installation and sealing. Subway tiles are made of ceramic or glass, materials that resist moderate moisture but require a waterproof underlayment and grout sealant to prevent mold and water damage in wet environments. With correct application—using a sealed substrate, proper adhesive, and a grout rated for bathrooms—subway tile can be safely installed on bathroom floors, offering timeless style and durability. Installing subway tile in the bathroom enhances both aesthetics and function when paired with moisture-resistant products and regular maintenance. This combination delivers a sophisticated look that withstands daily use while maintaining easy cleaning and long-term performance. For homeowners seeking elegance with reliability, subway tile remains a viable option on bathroom floors when installed correctly.