When using fixed height, vertical offset can be positive or negative from the bottom of wall. In this case, wall height must be positive and the application uses the absolute wall height value if a user enters a negative value.

The image below demonstrates this.

• A: Top of Wall
• B: Bottom of Wall
• 1: Vertical Offset -2’-0”; Height 9’-0”
• 2: Vertical Offset 0’-0”; Height 3’-0”
• 3: Vertical Offset 1’-0”; Height 8’-0”