Railings
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See also Railing Types and Bridge Renderings. See also Stairs.
Railings can be hosted to Levels, Ramps, Stairs, Floors (follows slope, but doesn't follow shape edits until 2017+), Roofs (2017+), Topography (2018+[1]), and ...?
CAUTION: If you host a Railing to Topography (R2018+), then split the Topography, the Railing no longer follows one of the elements (it seems like it just uses the slope at the edge of the surface that it's still hosted to). Similar behavior occurs when creating a new Railing (since you can't select both surfaces to host to).[2]
Support Phasing and other bugs: https://bdmackeyconsulting.com/tag/railing/
See also:
- Railing with sloped segment - sloped top rail w/ horizontal bottom
- Railing flat top and sloped bottom - a taller (flat) railing when stairs meets bottom floor
- RP-Pamphlet18-Railings-Part-1.pdf and https://revitpure.com/s/Revit-Pure-BASICS-Railings.pdf (or Revit-Pure-BASICS-Railings.pdf) and Revit Railings Masterclass - Terminations [4:28]
Plan Regions & View Range
Has similar issues as Stairs, see Stairs#Plan Regions.
Also affected by the "4 foot" exception to View Depth.[3]
See also Railing Visibility with Plan Region
OOTB Baluster Template:
Steve_Stafford post #3 & #19: http://www.revitforum.org/architecture-family-creation/15374-baluster-top-bottom-cut-angles.html:
- The angled reference planes in that template and baluster families are "special" because the "factory" put them there and Revit must be doing something internally to interpret the angle properly when it changes for stair or ramp rise/run.
- There are two baluster templates and I find the Baluster Panel Template is more reliable (less emphasis on the error part during trial and error).
- Automatic Sketch Dimensions are at play, especially in a baluster family, keep an eye on them or constrain to eliminate them.
- Revit has hard wired behavior associated with baluster family structure (ref planes etc.) so don't alter them, work inside the framework.
- Balusters have to be able to change for flat and/or sloped railing applications, part of the hard wiring deals with that.
- Railing patterns remind me of wall paper and the design width that they use so the pattern can appear seamless on the wall. It is necessary to plan ahead with this design width so that the corners in a room don't look awkward. Corners are also seldom truly plumb or at perfect right angles which makes it harder to install well. Everyone should try to install wall paper at least once. Railings are fun by comparison.
Sloped Railing Without a Host
"This lesser-known feature appears in the Options Bar when modifying the path of a Railing. Essentially, the Railing must be split into different segments and then given a custom Slope or Height Correction. The Slope is specified by the Height of the next segment, so the Railing must always end with a level segment." https://landarchbim.com/2015/05/20/sloped-railing-without-a-host/ (& http://revitoped.blogspot.nl/2013/12/railing-without-host.html & https://www.youtube.com/watch?v=vKGMfv6-h5U?) [TODO: what's the minimum segment length of a Railing sketch?]
Related Add-Ins
See Dynamo#Change Railing Host - Multiple
WORKAROUND: model Road as a Railing
See Constantin Stroescu's Screencast: Message 16 of How to create a road in Revit (create separate segment for a "bridge" which won't follow topo)
Notes
- ↑ Revit 2018 Help > What's New? > What's New
- ↑ 2017-09-13 LJC: WISH: Host Railing to more then one (Topography) host
- ↑ 2018-06-27 submitted feedback to the "About the View Range" page in 2019 Help: In the "Elements Below the Bottom Clip Plane and Within the View Depth" section, "railings" should be added to the list of categories with the 4 ft exception: "Exceptions: Floors, structural floors, stairs, RAILINGS, and ramps located outside the view range use an adjusted range that is 4 feet..."