| 
 | Flat | 
This command allows you to create a flat surface from a closed planar sketch.
Creation Stages / Use:
Click on the  icon or choose 
 the command Surface > 
 Flat... from the drop down menu (or Modeling 
 > Surface > Flat... in the assembly document).
 icon or choose 
 the command Surface > 
 Flat... from the drop down menu (or Modeling 
 > Surface > Flat... in the assembly document).
Select the sketch.
| 
 | It is possible to select only one profile of a sketch (in the case of a sketch with several concentric closed profiles for example).To do this, simply perform a rotating picking. | 
Available Options:
Offset:
| 
 | This option allows you to obtain a "hollow" flat shape. To do this, you can provide a thickness/offset distance in relation to the sketch by using one of the following modes: 
 
 
 The Rounded joins check box allows you to add fillets using, as the radius value, the outer thickening value. | 
A few examples of results with regard to the "offset" option.
| Without the offset option. | Outwards | 
| 
 | 
 | 
| Centered | On both sides | 
| 
 | 
 | 
Advanced Options: