Do you have the model number of the faucet ? Or a photo of the spec sheet? I have mounted different wall faucets at different heights depending on the angle of the spout, etc.

Also, how high is your backsplash?

It is the 3 hole dornbracht MEM 36712782-170010. It is the 7-7/8” projection from the wall. The vanity is 18” x 18”, backsplash is a 22” wide mirror that goes 2” past vanity on each end of the vanity and starts at the floor, ending at 7’ AFF (8’-9” ceiling). Faucet comes out of the mirror. Thanks

Dornbrachts specs are right for a 36" counter and since your counter is lower you would mount your faucet center at 42" off of the finished floor (which would still make your faucet 8" center off the counter).

Thank you. For what it’s worth the person on the phone said they give a range of 6” to 14” above a vanity and for a 34” vanity he recommended mounting at 10” above (44” AFF). He may just have been wrong or it may be people like as low as 6” to as high as 14”, though 14” seems crazy.

Yes I would say 14” would be very high! In my experience 8” above the counter feels best. You can also see a few of our projects with wall mounted faucets ( at 8” off the counter).

Though perhaps they were accounting for vessel sinks in the higher mounting recommendation.

it's probably where you like to hold your hands. you could dangle a spoon and see what feels right...