1 The cost of the materials themselves is going to vary. 2  Tiles are made from different materials and can come in different shapes, sizes, and designs. 3  On average, budget anywhere from $1 to as much as $15 per square foot. 4  It is not uncommon to see higher-end tile cost as much as $25 per tile or square foot. On average, plan on spending anywhere from $2,500 to as much as $5,000 or more for a standard 3′ x 5′ shower. 2  Showers can widely vary in size, but most of the time the cost will be within this price range. 3  The company HartmanConstruction.com offers a glass shower for a flat rate of $3,500.