Shower Wall: 12′′ × 24′′ Porcelain tile, vertical subway pattern, with quartz shelf and quartz curb. Backsplash: 2′′ × 2′′ Hexagon marble with custom-cut quartz edge. Tub Deck: Quartz. Shower Niche: 2′′ × 2′′ Hexagon marble with three quartz shelves, in Thornton, Colorado