For a mullion family for trapezoid corners, you can define the center width, depth, offset, and thickness.
To change type properties, select an element and click Modify tab
Properties panel
(Type Properties). Changes to type properties apply to all instances in the project.
| Name | Description |
|---|---|
| Corner Mullion | Indicates whether the mullion is a corner mullion.
This parameter cannot be changed. It is part of the definition of the system mullion family. |
| Center Width | Width of mullion at the center. |
| Depth | Length of the sides of the mullion that meet the panels. |
| Offset | Adjusts the position of the mullion in relation to the curtain wall.
The offset is measured from the centerline of the mullion profile family. By default, this centerline is aligned to the centerline of the curtain wall.  |
| Thickness | The measurement of the mullion from the front of the curtain wall to the back.
 |