With the uneven look you may need to shape the molding to fit.
How to hide a huge gap between tile and wall.
Fill gaps larger than 1 8 inch.
Apply the caulk with a caulking gun.
Great remodelers and builders consider using galvanized steel studs in locations where there will be tile.
The only thing to cover the gap would be to use 1 4 round molding.
Tool the caulk by drawing your finger along it to form a concave surface.
Lay painter s tape along the edge of the countertop and the wall just above the gap to keep caulk off these surfaces.
If you have tile on the wall adjoining the tub select a caulk that matches the color of the grout.
This will give you say a perfect 3 8 caulk line with an irregular wall to counter gap.
If your gap is smaller than 1 8 inch in width use regular caulk.
The other advantage to using steel studs in these areas is they don t warp or shrink.
If installed plumb and square the finished tile work looks amazing.
I foresee water getting in the gap and seams when cleaning the floor.
The steel studs are perfectly straight.