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RevitCat - Revit Consultant

Tuesday 15 March 2022

Stepped Stair Railing Top Rail Extension in Revit

Following on from an earlier post about stepped railings, here is a bit more information about what happens when you try to add Top Rail extensions.

Weird Railing Stuff - part 18

If the lowest boundary line on the railing path has a Slope property "By Host", the railing segment will be horizontal (assuming you have done a Height Correction on the other segments)

To add an extension to the base of the stair railing:

  • Tab-Select the Top Rail only

  • Edit its Type properties
  • Tick the checkbox for "Plus Tread Depth";  Apply or OK
  • Nothing happens
  • Revit thinks that this segment of the railing is not part of a sloping stair, even though we know it is
  • Edit the Extension Length property to 300mm
  • This time Revit adds the extension (horizontal), as expected (but still no extra tread depth, unlike the straight handrail on the other side of the stair, where it has both)

  •  Confusing huh?


To solve this, the Slope property of the railing segment must be changed:

  • Select the whole railing
  • Edit the path
  • Select the last segment of the path
  • Change its Slope property to "Sloping"

  • Finish the Path sketch
  • The Top Rail should now be sloping and have both the 300mm extension (horizontal) and the extra tread depth (sloping)

Both railings should now match

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