Auto Heights
PremiumAuto-adjust room heights by raycasting to the nearest floor/ceiling above. · Explore the live interface below - every control works exactly as it does inside Revit®.
Architecture
Structure
Steel
Precast
Systems
Insert
Annotate
Analyze
Massing & Site
Collaborate
View
Manage
Add-Ins
NexionTools
Select
Highlight
Rooms
Parameters
Sheets & Views
Data
Manage
QC
Test it Live - exactly as if you are in Revit
Loading interactive demo…
Get Started in Minutes
Four simple steps to bring Auto Heights directly into your Revit® environment.
1
Create Account
Sign up for a free NexionTools account - no credit card required.
2
Download Installer
One installer, 52 professional Revit® tools. Under 15 MB.
3
Open Revit
Auto Heights appears in your ribbon automatically - ready to use.
4
Activate License
Enter your Premium key to unlock full features.
Ecosystem · Rooms
Try NexionTools completely free.
Get full access to all 40 premium Revit® plugins. No credit card required.
Why Auto Heights exists
Room heights default to whatever somebody typed at the start of the project, and then the building changes around them. A room under a bulkhead still reports the project default. A room whose slab was dropped still reports the project default. Fixing it properly means checking what is actually above and below each room and typing the real figure, room by room, across the whole model.
How Auto Heights works
Run Auto Heights and it takes every placed room in the project.
From each room's location point it casts a ray upward to find the nearest surface above - a floor, ceiling, roof or wall - and downward to find the surface below, including geometry in linked models.
Where the surface above is pitched, it also samples the midpoints of the room's boundary and takes the peak, so a room under a sloping roof is not measured at one arbitrary point.
Those distances are written into the room's lower and upper offsets, so the volume reflects what is actually overhead. The Upper Limit level is never touched.
A confirmation dialog tells you how many rooms are about to be processed before anything is written, and on a workshared model rooms checked out by someone else are removed from the run and reported.
Before
Room heights are a project-wide default that stopped being true early and was never revisited.
After
Each room carries the height the model actually gives it, including where a bulkhead or a dropped slab makes it lower.
When to reach for it
- Fixing room volumes before any volumetric or energy calculation.
- Models where rooms were placed early and the structure above changed later.
- Coordination checks where room height matters for equipment or clearance.
What it does not do
- It needs a 3D view to cast rays through - a real one, not a view template and not a perspective camera. If the project has none, it stops and says so.
- It measures from the room's location point, so a room with a complex or stepped soffit gets the height at that point rather than a map of the whole ceiling. Pitched surfaces are the exception: those are sampled across the boundary and reported at the peak.
- Rooms must be placed. Unplaced rooms have no location to cast from.
- It writes the room's upper and lower offsets. It does not move ceilings, change geometry, or alter the Upper Limit level.
Questions
- How do I set Revit room heights to match the actual ceiling?
- There is no built-in command for it - room height is a parameter you type. This casts a ray from each room up to the nearest floor, ceiling, roof or wall surface and down to the one below, then writes the measured distances into the room's upper and lower offsets.
- Does it look at linked models?
- Yes. The raycast finds geometry in links as well as the host, which matters when the structure or the ceilings live in a separate file.
- What happens if nothing is above a room?
- It falls back to a fixed three-metre default measured from the room's base level, rather than writing a nonsense value. That is a placeholder, not a measurement - a room that comes back at exactly three metres is worth a look.