Bottom Elevation Value Issue in Revit 2027
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Hi Guys,
I stared using Revit 2027 for my modelling such as cable tray, Pies, conduits and ducts. The issue i am facing is when i start to model a pipe at a certain height say 2800mm (Bottom of Pipe) from Level, i choosed the vertical justification as Bottom and there is no Bottom Elevation Parameter that appears for feeding the value. The worst thing I found in Revit 202 is that when we model sloped pipes and want to start a pipe at 2800mm ((Bottom of Pipe) how do we achieve this. if i feed value in any of the parameter nothing works.
I checked using Autodesk Assistant and it says to calculate the additional value for Bottom of pipe. Kindly check the attached Assistant's reply as well.
while drawing pipe there was a option called bottom elevation, but in Revit 2027 if i change the vertical justification to bottom, still there is no bottom elevation for entering value. how to draw a pipe at 2800mm where 2800mm is the bottom to level
Assistant:
Thought for 24s▼
Assistant:
Jul 14, 2026 5:41 PM
This is a known limitation in Revit 2027. The Offset field in the Properties palette always refers to the centerline of the pipe — even when you set Vertical Justification to Bottom, the Offset input field does not switch to a "bottom elevation" field. The Vertical Justification setting only affects how the pipe geometry is drawn relative to where you click, but the Offset value you type is still measured to the center of the pipe.
How to Draw a Pipe with Bottom at 2800mm from Level
Since the Offset is always measured to the pipe centerline, you need to manually calculate the centerline elevation:
Formula:
Centerline Offset = Bottom Elevation + (Pipe Outside Diameter / 2)
Steps:
- Start the Pipe tool
- Go to Systems tab → Plumbing & Piping panel → Pipe
- Set Vertical Justification to Bottom (optional but good practice)
- On the Modify | Place Pipe tab, click Justification
- Set Vertical Justification to Bottom
- Click OK
- Calculate the correct Offset value
- Find your pipe's outside diameter (e.g., for a 100mm pipe, OD ≈ 114mm, so radius = 57mm)
- Add half the OD to your bottom elevation:
- Example: 2800mm + 57mm = 2857mm → enter 2857mm as the Offset
- Enter the Offset in the Properties palette
- In the Properties palette, under Constraints, set the Offset field to your calculated centerline value (e.g., 2857mm)
- Draw the pipe as normal
After Placement — Verify
Once the pipe is placed, select it and check the Properties palette. You can verify:
- Offset = centerline elevation
- The bottom of the pipe = Offset − (OD/2) should equal your target 2800mm
This issue may be available for Top, Middle and Bottom Elevation of Offset Parameter as well. Hope someone helps or fix this big bang issue!
