Naturally this depends on which hardwood and which tile and condition of your floor but this is a good rule of thumb for the colder climates.
Tile higher than hardwood floor.
A single transition strip that acts as a ramp from the lower hardwood floor to the higher tile floor.
The easiest design is to have a mill shop create this transition.
The tapered edges should be no thiner than 1 8 thick to avoid splintering.
For reference the total thickness of the hardwood with the underlayment is 5 8 or more exactly 15 mm.
The labor for tile is much higher than the labor for hardwood so when you add labor and materials together usually hardwood is less expensive.
But there are other advantages too.
Tile is 1 2 higher than the wood floor.
With the tile edges not being exactly even.
We are installing engineered hardwood floors against porcelain tile floors.
I would try and create a transition that would overlay the tile flooring.
And be nailed into the hardwood.
This strip can either meet the tile floor directly or can have a lip over style.
The kitchen opens onto the living room with the transition being about 12 feet long and there is also a doorway into the dining room that i have to transition.
In most cases tile is significantly cheaper than a traditional hardwood floor.
The engineered hardwood with the underlayment which is being installed on our concrete subfloor will be 3 8 or 9 525 mm higher than the existing tile floor.