Thanks for that feedback! Appreciate the patience, Roy James.
SEEING EXACTLY WHICH LAYERS THE DIMENSION IS LOCATING TO: Yep, I assumed that was the drywall (surface layer) that the smaller dimension was locating to, but have used several rendering apps and I no longer assume anything).
CHANGING DEFAULT OPTION TO "SURFACE". Thanks for those directions. I did previously research this and had the settings on "surface". But, you are saying that for interior, I can use only the manual dimension tool to mark dimensions "surface to surface"? (Doesn't make sense that I wouldn't be able to use the "interior dimension tool" and get surface to surface result, but okay.
Just for the heck of it, with the default set to "surface", I tried both "interior dimension" and "manual", here are the results. What am I doing wrong.
Acknowledge in advance there is something I am totally missing. Thanks.