What to put for the surrounds of a glass shower door? I like slab as jams and thresholds.
Why? Water is a weathering agent. (And you thought design and science had nothing to do with each other!) Water pounding on the tiles will eat away at grout lines. With slab, there is no grout line, so durability increases.
Here, the slabs are put in place and blue tape holds the slabs until they set.