Drawing a Curved Wall that is Tangent to Two Straight Walls

Reference Number: KB-00692
Last Modified: September 21, 2022

The information in this article applies to:

Chief Architect Premier or Chief Architect Interiors


I would like to draw a curved wall that connects smoothly to two straight walls, with a specific radius. How can this be done?


A curved wall can be specified to connect smoothly to two straight walls using the Make Arc Tangent edit button and specifying your desired radius. 

To create a wall that is tangent to the end of two straight walls

  1. Draw two straight walls using one of the Wall tools, such as the Straight Exterior Wall tool, leaving an opening for the curved wall section.

    Two straight exterior walls with an opening at the corner

  2. Draw a curved wall of the same type using one of the Wall tools, such as the Curved Exterior Wall tool, connecting the straight walls, as shown below.

    Approximate the curve as best as you can but don't try to get it exact, it will be perfected in the following steps.

    Cruved Exterior Wall connecting to both of the two straight walls

  3. Select the curved wall and click the Make Arc Tangent  edit tool  that displays on the Edit toolbar.

    The Make Arc Tangent edit tool will not be available if the two straight walls are parallel, or if the arc is too extreme in relation to the straight walls.

  4. In the Radius of Tangent Curved Wall dialog, specify a Wall Radius and the connected walls will be shortened or lengthened to accommodate this new radius.

    Wall Center is selected by default, but if you prefer, you can specify the radius from the other wall layer options shown.

    Radius of Tangent Curved Wall dialog in which a radius of 40" is specified

  5. Click OK to see the results.

    Curved wall with a radius of 40" connected to two straight walls