How to change the height of a wall in Revit?
Short Answer
To change the height of a wall in Revit, use the wall’s Properties and update its Top Constraint or Unconnected Height value, depending on how the wall was created. This is the fastest and most common professional method for controlling wall height in Autodesk Revit. Limitation: attached or constrained walls may not edit freely.
What You Need to Know Before
Warning: If the wall top is attached to a roof, floor, or another element, changing the height may appear to fail because the attachment overrides the wall’s height settings. Also check whether the wall is constrained to a level, since level-based constraints can lock expected edits.
How to Change the Height of a Wall in Revit
Command: Properties
Shortcut: No default shortcut
Quick Steps:
- Select the wall in the drawing area, then go to the Properties palette.
- Under Constraints, change Top Constraint to another level or set it to Unconnected.
- If using Unconnected, enter the new Unconnected Height value and click Apply.
Variables & Settings
Key Setting: Top Constraint / Unconnected Height
Expert Setting: If Top Constraint is set to a level, the wall height is controlled by that level relationship, not just a typed height. If set to Unconnected, the Unconnected Height parameter directly controls the wall’s top elevation.
Why it Fails
Cause 1 (Geometry): The wall is attached to a roof, ceiling, or floor, so the attachment controls the top shape instead of the height parameter.
Cause 2 (layers/Locks): The wall may be pinned or constrained to levels, preventing direct modification of height values.
Cause 3 (Command/Logic): You are editing Unconnected Height while the wall is still level-constrained, so the entered value has no effect.
Quick Fix & Best Practice
Quick Fix: Select the wall, check Top Constraint in the Properties palette, and switch it to Unconnected if you need direct height control.
Manager’s Verdict: Use level constraints for coordinated building models, and use Unconnected Height only for special conditions or early design edits where strict level control is not required.
FAQ
How do I make a wall taller in Revit?
Select the wall and increase its Unconnected Height or change its Top Constraint to a higher level.
Why can’t I change wall height in Revit?
The wall may be attached, pinned, or constrained to a level or other element.
Can I change multiple wall heights at once in Revit?
Yes, select multiple walls with matching properties and edit their constraint or height values in the Properties palette.
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