Threshold transition, 9MM Tile to 3/4" Hard Wood
One of the things I've been wondering about is how to achieve a flush transition between the tile in the bathroom and the hard-wood flooring in the bedroom without an obvious dip down or harsh slope. I could use a reducer, but ideally I'd like to throw a nice schlueter trim between the two materials and have it all on the same plane.
Should I attempt to achieve this transition by building up thinset under the tile, or would it make more sense to float a slope from the door towards the shower (seems like overkill.)
Something tells me using thinset for structural purposes isn't the best course of action. As I understand, if you use a 1/2" notched trowell, at a perfect 90 degrees (which won't happen) then you would end up with 1/4" thinset when compressed under the tile. Since the trowell will be at an angle, the 1/2" notch won't actually be 1/2" tall, and thus, compressing it will reduce the height of the underlying thinset to something more like 1/8 - 3/16" which is between a little more than 3mm to 4.5mm. Add that to the 9mm tile and I'm at 13 ish MM from the slab, and I need to be at about 18mm. So, 5mm thinset to build up?
You may be able to put a float strip near the transition on the door and slightly floated up to that and feather it out that way when you set the tile you could build it up flush