I had this situation and made transition/reducers from the same hardwood that I used for the flooring. Cut 1/4" off the underside of the side of the transition/reducer that will sit on the tile. Put 15 degree chamfers on the top edges of the transition/reducer to create a ramp down to the flooring surfaces. If you need an expansion gap between the hardwood and tile locate the transition/reducer's leg to allow for this gap.
edited by JIMMIEM on 6/21/2014
edited by JIMMIEM on 6/21/2014