Because door/window assemblies can contain multiple nested grids, it is helpful to use a naming convention for grids that indicates the level of each grid and the grid location or the purpose within the door/window assembly. For example, L3-FL1-Stone Panels identifies a third level grid that provides a row of stone panels on Floor 1.
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 Door/Window Assembly Styles. 
  
  
 . | Division Type | Description | 
|---|---|
| Fixed Cell Dimension | Creates a grid where the size of the individual cells is predetermined. | 
| Fixed Number of Cells | Creates a grid where the number of grid cells is predetermined. | 
| Manual | Creates a grid where the size and number of individual cells is manually determined by the user. | 
After you create a division definition, you can assign the definition to a specific grid in a door/window assembly.