The Preview picture in Door/Window Settings uses some Wall settings to provide useful context.
For example:
•For an Empty Opening, the 3D Preview picture also indicates the thickness and surfaces of the surrounding Wall, to provide some context. (In default Door/Window Settings, the default Wall parameters are used for the Preview.)
•When showing Casing, Frame and/or Sill in the 2D/3D Previews, the thickness of the Wall setting is used.
Relevant topics
Door/Window Settings and Opening
The following is a description of the Door/Window Settings and Opening tab page of the Custom Settings Panel of Door or Window Settings, from the ...
Other Panels in Door/Window Settings
Door/Window Model Panel (Not Visible by Default)
This panel is not visible by default. If you need it, make the panel visible in Door/Window ...
Floor Plan and Section Tab Page (Door/Window Settings)
The following is a description of the Floor Plan and Section tab page of the Custom Settings Panel of Door or Window Settings, from the INT ...