Linear drains are the way to go to offer maximum drainage without standing on a small center drain or having the waste water pooling at the drain More
I think I would live in my shower if I had this!!
If rock in the master bath is determined to be cost prohibitive, this tile option would work too.
shower pan? Curbless shower with a linear drain at the door. soft gray tiles
Stone Tile Walk-In Shower Design | Kenwood Kitchens in Columbia, Maryland | Marble Tile Shower with Stone Mosaic | Walk-In Shower with Seated Bench by Raelynn8
tile shower design
Addition and Remodel - traditional - bathroom - san francisco - by Thomas Saxby Architect