First of all a “listel”, sometimes called “listello”, is a narrow filet or border and in this case it will be made from contrasting tile.
Our conservatory bathroom will primarily have white floor tile and frosted white wall tile.
We bought a variegated frosted glass penny tile to give some visual variety to the shower walls.
Although the tiles are 12″ by 12″ we have decided to use 4-row sections to run a line around the shower and also as a backsplash after the sink and vanity are installed.
I have mocked up 2 possible placements.
First I thought of placing the listel under the shower head but bisecting the round window that is in the shower.
Then for the sake of continuity I ran one continuous line around the backsplash and the shower. The placement is more like a chair rail height.
Any preferences? Any other suggestions?