Have a diagonal door to bathroom with 12 x 12 tiles (will BE). We were discussing where to stop ceramic tile. Directly under center of door, inside edge of door, outside edge of door even with stop,,,middle of stop,,,hallway edge of whole door frame.???????? Pro tilers have to have some standard. If it matters will probably have laminate similiar to "Pergo" on hallway/ living room bedroom ajoining
Traditionally bathroom doorways have a marble threshold to function as a separator and for appearance. If you use a threshold you wouldn't have to ask the question since the marble is supposed to be 4.5", the thickness of the jamb. If you skip the threshold, I still recommend running the tile to the outside of the jamb. We do this for bathrooms only. All other doorways get the "change' under the closed door.
One additional benefit of the threshold is when visitors see the threshold or tile, they will know it's a bathroom.
TILE GUY - retired- TROY, MI - Method & Product suitability consulting.