You can edit the shape of a door, its height and width, and swing type.
To edit the size of a door:
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 Size tab.
Edit the shape and dimensions as desired. Clicking a dimension marked with an alphabetical character (a, b, c, etc.) highlights the corresponding dimension in the door graphic, and vice versa.