Creating Curved or Spiral Staircases

Reference Number: KB-00477
Last Modified: March 29, 2021

The information in this article applies to:

Chief Architect Premier or Chief Architect Interiors


I would like to add curved stairs or add a spiral staircase to my plan. How can I do this?

Curved staircase in an entryway


There are several ways to create curved or spiral stairs in Chief Architect. One way is to place a spiral staircase from the Library Browser while other methods require the use of the Stair Tools. 

To use the curved stair tools

  1. Select Build> Stairs> Curve to Left  or Curve to Right  from the menu, then click once in a floor plan view to add curved stairs at that location.

  2. To move, resize, or rotate the stairs, click the Select Objects  button, select the stairs, and use the edit handles that display to adjust the stair to your liking.

To curve a straight staircase

  1. Select Build> Stairs> Draw Stairs  from the menu, then click and drag to draw a run of straight stairs.

  2. Using the Select Objects  button, click on the staircase to select it.

  3. Hold down the Alt key on your keyboard if you're on a Windows PC or the Option key if you're on a Mac, left-click on the top or bottom edit handle located on the staircase, then drag the edge in any direction to curve the staircase.

    Curving a straight staircase

    Note: The Alt/Option key and the right mouse button/action are shortcuts for the Alternate edit behavior. If you would like to enable this edit behavior for the left mouse button/action, navigate to Edit> Edit Behaviors> Alternate. 

    Multiple stair segments can also be connected to each other. Try placing one stair segment and then creating another from the end point of the first. Once done, curve one of the segments, and notice that the additional, connected stair remains unchanged.

    Two separate stair segments connected to each other, with one being curved, and one being straight

    Stairs can also be broken into multiple segments with the Add Break Break tool icon tool. Segments are denoted by their segment number and have separate edit handles for each section.

    Stairs can be broken into multiple segments and modified.

To place a spiral staircase from the library

  1. Open the Chief Architect plan in which you would like to place a spiral staircase, or select File> New Plan  from the menu.

  2. If it's not already open, select View> Library Browser  to open the library, then browse to Chief Architect Core Catalogs> Architectural> Staircases> Spiral.

  3. Click on one of the spiral staircases to select it.

  4. When you move your cursor into the drawing area, it will display the Fixtures (Interior)  icon. Click once to place the selected spiral staircase at that location.

  5. Once placed, you can use the edit handles to move, resize, or rotate the staircase as desired.

  6. Finally, take a Camera view to see the results.

    Camera view of a spiral staircase from the library