(for third floor or extra guest room bath) White tile shower ideas; white subway tile-shower niche with bullnose edge tile used in lieu of bullnose strip pieces. Also subway tiles turned vertical on edges of shower.
Used this as trim inside my shower with the marbled pencil trim. I used Carrara porcelain tile. Don't be afraid of mixing materials. This is carrara with ceramic subway tile. The pencil helps deal with the possible thickness differences.