The steel studs are perfectly straight.
How to hide a huge gap between tile and wall.
I foresee water getting in the gap and seams when cleaning the floor.
This will give you say a perfect 3 8 caulk line with an irregular wall to counter gap.
The line will continue maintaining caulk gap regardless of the gap of the wall to counter.
If your gap is smaller than 1 8 inch in width use regular caulk.
Lay painter s tape along the edge of the countertop and the wall just above the gap to keep caulk off these surfaces.
The other advantage to using steel studs in these areas is they don t warp or shrink.
Tool the caulk by drawing your finger along it to form a concave surface.
Apply the caulk with a caulking gun.
Great remodelers and builders consider using galvanized steel studs in locations where there will be tile.
Choose a color that matches the countertop and spread a thin continuous bead with no voids.
Fill gaps larger than 1 8 inch.
The only thing to cover the gap would be to use 1 4 round molding.
If you have tile on the wall adjoining the tub select a caulk that matches the color of the grout.