One of the easiest ways to join a tile and wood floor together is with a simple border outline. This can either be a strip of the tile or a strip of the wood that runs around the joint between the two materials. It only works where the two areas are flush (the same finish height) and you simply want a border to define the installation areas, such as with an inset tile entryway against a hardwood floor.
If the transition occurs in a doorway, bridge the transitional area naturally in the middle of the door with a threshold. While thresholds can be a variety of materials, one of the preferred types is marble because of its durability. Thresholds are commonly sold in gray or dull white, although you can find them in other colors. When the door is closed you usually cannot see the threshold, giving the illusion that the material in this room carries into the other.
Another choice for doorway transitions is T-molding. Shaped exactly like the letter it takes its name from, T-molding is designed so that the vertical stem of the molding fits along the gap between the wood and the tile, with the horizontal top of the "T" resting flush on each floor section. This covers the gap and gives a threshold-like appearance but costs less and installs easier with just some caulking adhesive.
If height isn’t a concern and you have two floors of different finish levels but you want to transition between the two, you can use a reducer strip to bridge the height between both materials. This is a ramped piece of material that either is installed at the edge of tile or the edge of wood and ramps down to a lower finish flooring surface. They are ideal for disabled access areas.