Cathedral ceilings are the same pitch as the roof and are typically produced by enclosing the bottoms of the roof rafters with a ceiling material.
You can easily create a custom curved ceiling for your structure using a manually drawn ceiling plane and using the Curved Roof options.
You can model a wide variety of ceiling finishes and furring strips using the Ceiling Finish Definition dialog and the framing tools.
Like other kinds of lowered or dropped ceilings, you can create a suspended ceiling with ceiling tiles by setting up a custom Ceiling Finish Definition.
One way to create a coffered or trey ceiling is to use polyline solids and using the option for Hole in Polyline Solid.
The Platform Hole tool can be used to create a hole in a ceiling plane. Add a molding and a manual ceiling plane to finish it off.
When the Default checkbox, or letter (D), is present in text fields in a specification dialog, Chief Architect will automatically apply the default value.
A dropped ceiling is a secondary ceiling, hung below the structural ceiling. May also be referred to as a drop ceiling, false ceiling, or suspended ceiling.