To Change the Thickness of Existing Objects
Select the objects whose thickness you want to change.
Right-click the objects and choose Properties.
In the Properties palette, select Thickness and enter a new value.
The selected objects change to display the specified thickness.
Related Concepts
About Creating Wireframe Models
About Adding 3D Thickness to 2D Objects
Related Tasks
To Drop a Perpendicular Line From a 3D Point to the XY Plane
To Create Wireframe Geometry Based on Other Objects
To Set the Thickness of New Objects
Related Reference
Commands for Creating Wireframes and Objects With Thickness