Autodesk Revit: Filled Regions

In this Autodesk Revit tutorial we are going to take a look at Filled Regions. If you’d like to watch the video version of this tutorial first, simply click in the box below….



In Revit Filled Regions are simply a bounded area filled with a Detail Hatch Pattern. You get to define the shape and extent of the boundary (including which Line Style it is drawn in) and to choose which Hatch Pattern the area is filled with. Let’s take an example of when we might use a Filled Region. The image below show the junction between an external wall and a sloped roof. You can see that I have already added a Repeating Detail Component to represent the blockwork in section…






What I want to do now is add a “Wall Plate” to the top of the blockwork. A “Wall plate” is a section of timber used to support the roof at it’s eaves. Now I could create a Wall Plate using a Detail Component. But for the sake of this tutorial I am going to use a Filled Region. Switch to the “Annotate” menu (1, below), activate the “Region” drop-down menu (2, below) and choose “Filled Region” (3, below)….





Once activated, the ribbon menu changes to give you all the tool;s you need to define the boundary of your Filled Region….





  1. Sketch Mode Controls: The Green Tick when you have completed the boundary. The Red Cross is you wish to cancel out of creating a Filled Region
  2. Draw Palette: Use the tools in here to help draw the boundary lines
  3. Line Style: Choose the Line Style you wish for the boundary. PLEASE NOTE: This does NOT control the lines used for the pattern fill.
Now turn your attention to the Options Bar…



  1. Chain: Use this to draw your boundary lines in a chain- i.e. one right after another, without cancelling the draw operation
  2. Offset: Create your boundary lines a specified distance away from your cursor points
  3. Radius: Create curved fillet junctions between boundary line segments
For my Wall Plate I just need a simple rectangle, so I can pick the Rectangle tool from the Draw Palette….



In the image below you can see that I have creates a rectangular boundary, in position on top of the blockwork….





It is now time to choose the “Detail Hatch Pattern” that I want for the Filled Region. Go ahead and click in the Type-Selector in the Properties Palette (1, below) and choose “Diagonal_cross_hatch” from the drop-down list (2, below)….





Go ahead and hit the “Green Tick” in order for Revit to create the Filled Region based on your boundary and pattern-choice. The image below shows the completed Wall Plate….




Key Points

  • Filled Regions are 2D Detail elements
  • Ensure your boundary lines form a closed loop or Revit will report an Error
  • They only exist within the views in which you create them
  • Use Filled Regions to embellish your views and add detail
This tutorial is taken from "The Complete Beginner's Guide to Revit Architecture" FREE online course.
This tutorial and over 80 others are available as a PDF Ebook. For details please Click Here
Posted in Autodesk Revit.