You can choose from a variety of door leaf types and change the thickness of the leaf.
To edit a door’s leaf:
Select the door whose properties you want to change.
Right-click and select Properties, or select Edit > Modify Elements > Properties.
In the Doors dialog, select the Leaf tab.
In the Type area, click on the leaf type you want.
If you want to change the thickness of the leaf, enter the thickness in the Leaf Depth edit box.
Each door leaf type has its own set of dimensions that you can define. These dimensions vary according to how many panels the leaf has. Clicking a dimension marked with an alphabetical character (a, b, c, etc.) highlights the corresponding dimension in the door leaf graphic, and vice versa.
Click OK.