Creating a Carport

Reference Number: KB-01179
Last Modified: March 23, 2016

The information in this article applies to:

Chief Architect Premier or Chief Architect Interiors


I want to add an attached carport to my shop or house. How do I go about creating that in Chief Architect?


You can create an attached carport very easily in Chief Architect using manual roof planes.

For the purposes of this article, we use an existing 24' x 40' structure, with a Ceiling Height of 12'. The roof is a basic gable at a 6/12 pitch with the overhang set to 2 1/2", as in the image below.

To set the defaults

  1. Select Edit> Default Settings .

  2. In the Default Settings dialog, Expand the Walls category.

  3. Select Deck Railing, to highlight it, then click on the Edit button to display the Deck Railing Defaults dialog.

  4. On the Rail Style panel, change the following information:

    • Move the radio button No Rail

    • Check the No Half Post at Wall checkbox

    • Check the Post to Ceiling checkbox

  5. On the Newels/Balusters panel, set the Newel Width to 4" and set the Spacing to 144" On Center

  6. Click OK on the Deck Railing Defaults dialog, then click Done on the Default Settings dialog.

 To draw Railings

  1. Go to the Build> Railing and Deck> Straight Deck Railing , then draw three deck railing walls attached to the left side of the existing structure, as in the image below.

  2. Select the left deck railing, and use the Temporary dimension that displays to set the railing 12' from the house.

    Note: If you do not have temporary dimensions set to display, select View> Temporary Dimensions to toggle the feature back on.

  3. Using the Select Objects  tool, select the newly created Deck room, then click on the Open Object  edit button to display the Room Specification dialog.

  4. On the General panel, use the Room Type drop down menu and change the Deck to a Slab room.

  5. On the Structure panel, uncheck Ceiling Over This Room and Roof Over This Room, then click OK.

To draw the Carport Roof

  1. Using the Select Objects  tool, click to select the existing main structure's left roof plane, then click the Open Object  edit button to display the Roof Plane Specification dialog.

    If you have trouble selecting the roof plane, click on the edge of it, and then click the Next edit tool or press the Tab key on the keyboard to cycle through the objects that occupy that space to get to the roof plane.

  2. On the General panel, write down the Fascia Top height (in this example, 150 7/8").

  3. On the Options panel, in the Supply category, uncheck the Gutter checkbox, then click OK to apply the change and close the Roof Plane Specification dialog.

  4. Next, select Build> Roof> Roof Plane , and click and drag out a roof plane baseline along the outer edge of the railing, then click in the deck room to specify the direction of the ridge.

  5. Select the Roof Plane and use its edit handles to resize the roof plane until it completely covers the carport.

  6. With the Roof Plane still selected, click on the Open Object edit button to display the Roof Plane Specification dialog.

  7. On the General panel, set the Ridge Top height to the height of the Fascia Top height recorded earlier (150 7/8" in this example), then click OK to apply this change and close the dialog.


  8. Finally, let's select 3D> Create Perspective View> Perspective Full Overview  to see the results.

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