Location of Transition
The location of the transition depends on the area where you’re changing floor types. The easiest transition is a cased opening because there really isn’t a right or wrong answer on the location. In the top photo you can see a cased opening where I changed from hardwood to tile between our kitchen and mudroom. The key to that transition is to install a piece of wood perpendicular to the running direction in order to have the transition piece parallel to the tile.
The other location that needs consideration is at doorways. As you can see in the adjacent photo I transitioned the hardwood to tile under the closed door. This way when the door is closed you only see hardwood on the hall side and tile from inside the bathroom. It’s important that you know the exact location of the door if you’re installing the flooring prior to hanging the door.