Hello hive mind,
I’m feeling a bit frustrated with what seems like a basic issue — but I’m wondering if I’m missing something simple.
This problem sits right at the intersection of modelling vs documenting, and how Revit handles core, finish, and wrapping behaviour.
I’ve attached screenshots of the wall type properties and assembly (Images 5 & 6).
Issue:
I cannot snap dimensions to the core end of my nib walls.
Revit will only let me snap to the finish layer. ie. Revit thinks the length of the wall is the core and not the overall. So when I toggle the wraps, I am left with the same length, but a different display of the wall.
When placing the wall, Revit treats the core end as the true wall length.
Turning Wrap at Ends on or off does not change the wall length — the two dimensions in Images 3 & 4 remain identical.
What I want on my setout plan is to dimension stud-only lengths, not the finish.
For example: a nib wall that is 600 mm long (core) and 90 mm thick.
Context
In my view template, I’ve turned "Non-Core Layers" OFF, so the plasterboard disappears — but the wall still dimensions to the overall length, not the core length.
Image 1 - Overview of issue
Black dimensions = Overall wall lengths (finish to finish).
Pink dimensions = intended stud-only dimensions (Core only)
The 600 mm pink dimension is snapped to a detail line because I cannot snap to the actual core end of the nib wall.
Both nib walls (left with wraps ON, right with wraps OFF) display the same length, even though wrapping is visually different.
These nib walls form a recess for a joinery unit exactly 600 mm × 1220 mm (blue, dims A & B).
The walls are modelled correctly — but in my setout plan I need to dimension to the stud, not the plasterboard.
Images 2
More detailed view of problem
Image 3 & 4
Toggling the wrapping button shows that the plasterboard wraps inside the core, not outside.
This is the main source of confusion: Revit asks for core/finish/wrap settings, but does not allow me to choose whether dimensions reference:
Core-only, or core + finishes (Overall)
I want to document the core length, but Revit keeps snapping to the finish ./ end of wall.
Is there a way to fix this using settings?
Asking Co-pilot / GPT says the only way is to model two seperate walls, one being the 90mm stud. And then trace each wall with the finish only. But I can see a number of issues with controlling their display using this method, as both walls would display as common / core lines and I would need different lineweights on core vs finish. (at 1:100 all the line would be too thick on top / next to each other.
Please help me, or join in attacking Autodesk for this basic problem.
TL:DR
How can I simply tell the carpenter in my setout plan, If the wall is to be 800mm long. Then the stud should be 780mm and 10mm of plasterboard in either side.
Without using 2D lines, overriding dimensions, or breaking the wall into two separate walls.