Good suggestion! I didn't think of that. Thank you!

You could also look for vanities that don't have the attached backsplash, or omit the backsplash if it's a separate piece. Good paint or a little strip of tile can fill the gap fine.

Thank you for this suggestion. A good one also. I think what is my challenge is that there is a particular vanity I want. So I might just have to find the vanity base and then get the countertop/sink separately. https://www.homedepot.com/p/ARIEL-Hepburn-37-in-W-x-22-in-D-x-36-in-H-Bath-Vanity-in-White-with-White-Pure-Quartz-Vanity-Top-with-White-Basin-T037SRWQRVOWHT/323469743

Is the splash integral or is it set in place in the field? If loose find a countertop or stone fabricator and have the lower edge cut down by the 1/2" needed.

Thank you. I believe it is part of the countertop, but it comes separately. Do you think I could take the whole countertop (36 inches) and have someone cut it even though it's attached?

I would not cut it off the top edge, no.

Thank you! very helpful

It would be much easier to trim the base, than the countertop that has a finished edge.

That makes sense. Thank you for the suggestion

The installation guide shows that the backsplash is a separate piece. Just don't install it.

Good eye. I didn't see the installation guide. Do you think, as someone suggested earlier, that I could cut the backsplash if I want it installed?

"Do you think, as someone suggested earlier, that I could cut the backsplash if I want it installed?"

Not DIY but a fabricator (like I mentioned) could do it 1-2-3.

You need a new light fixture too. BTW most new vanities are 36" to the top of the counter without the backsplash so no matter what you will need to remove the mirror so maybe agood time for a change .

That appears to be a builder grade mirror. I wouldn’t let my choices be dictated by that. You can pick the vanity that you like and hang another mirror that works in the new space.

Thank you both Patricia and Linda. It seems like the mirror is outdated and time fora change. I'll start to consider that. Thank you!

If you want to keep it remove it and have it cut to size. To remove tape the mirror with tape and gently start prying the sides with a plastic tool. Use shims as you go. Be patient and it will come off without damaging.