If it were me, I'd start with Revit's "Basic Wall: Generic 8".
Edit/New > Duplicate a number of times and make a bunch of walls available
in 1" thickness increments from 4 1/2" up to whatever.
If you go into the Properties for "Generic" and Edit Structure you will
notice that it does not ask you to "specify the exact layered construction"
it has one layer in the center simply called "Structure" that makes up the
full thickness of the wall.
Generic wall is there specifically so you can burn rubber, then come back
later when you have the time to get more specific. Then you can select each
wall and edit it's "layered construction."
I don't know of a way to get Revit to extrapolate wall thickness as you
suggested.
wrote in message news:5144189@discussion.autodesk.com...
I'm using Revit to model existing conditions in my hi-rise apartment. The
walls conceal all types of ductwork, structural beams, columns, headers, you
name it, so the apparent thickness varies from wall-to-wall.
Revit is designed for genuine construction, not interior design, so it
expects me to specify the exact layered construction for each wall. I've
been manually deriving the wall thickness from the existing room dimensions
and creating semi-generic wall types, but is there an easier way? Is there
some method to tell Revit to derive wall thickness directly from the
dimension constraints? If the room's 8 feet long on the outside, and 6 feet
long on the inside, and the closet's 1'8" inside, then the wall must be 4"
thick and I don't care what it's made of. This gets hairier as I have to
split walls for different thicknesses, guess how interior faces will wrap
around columns, etc.
Any shortcuts?