I'm wondering what the proper way to install tile edge trim around a shower niche is.
Some people leave space for grout in between the mitered edges and some people don't (see pictures for example of both). It seems to me that leaving space for grout is the correct way so water will not seep through and get behind tile.
But perhaps it does not matter as I see more examples of people not leaving any space for grout in the mitered ends.
Any thoughts would be much appreciated.