It says you answered my question, but I haven't received anything as of yet. Thanks
No, I haven't answered yet. I don't know why it says that.
I'm sitting down to look at it now.
I don't think you need, or necessarily want, to try to match tops of finishes. There is typcally a small change in elevation between say tile and hardwood or tile and carpet. This is usually made up for in the threshold/transition trim piece.
Carpet is notorious for not being able to make tops match - it's so soft that it doesn't really have a top. You can squish it down almost to the top of th esubfloor, but you don't want the transition to do that.
I know that there will be some variance, but for instance... I have to put cement board down under the tile. That is going to raise it either 1/4" or 1/2" depending on the thickness installed. If I don't do any change under the carpet, the kitchen/family room radwood will be 9/16" higher than the subfloor for the carpet. I need to know what to do to get everything to end up close to even so that the transitions are easy and realistic.
If you're 1/2" high on the tile side, I would put an extra sheet of 1/4" plywood down on the carpet side.