Troubleshooting Why Floor and Ceiling Framing Doesn't Generate

QUESTION

When I build framing for my model, the entire structure frames quite nicely. However, despite my best efforts, the floor and ceiling will not frame. Why won't the framing generate in these areas?

ANSWER

Framing for the floor and ceiling will not generate, even if there is sufficient platform thickness for each, if certain attributes within the Room Specification dialog are set incorrectly. See the procedure below to ensure that these attributes within the Room Specification dialog are not conflicting with the framing of your model.

To ensure that framing generates properly in your floor and ceiling platforms

1. Using the Select Objects  tool, click in a room in which floor and/or ceiling framing is not generating correctly, then click the Open Object edit button. 
   
   

   Note: If all rooms on a particular floor are not generating floorand/or ceiling framing correctly, the floor and/or ceilingStructure properties may have been modified in the Default Settings. Ifthis is the case, navigate to Edit> Default Settings, expand the Floors andRooms category, expand the Floor Levels then select and edit the specific levelneeded. Once in this dialog, the selected floor level Defaults will replaceRoom Specification in the steps below.

   
   
   
2. On the Structure panel of the Room Specification dialog, make sure that both the Flat Ceiling Over This Room and Roof Over This Room boxes are checked.  
   
   
   
   

   If Flat Ceiling Over This Room is unchecked, the ceiling follows the underside of the roof or manually drawn ceiling planes.
   

   
   
3. Next, with the Structure panel still active, click the Edit button next to Ceiling Structure to display the Ceiling Structure Definition dialog.
   
   
   
   
   • The Framing box needs to be checked for at least one of the Material Layers to generate framing.
     
     
   • When at least one layer has this box checked, specify the Framing Method, as well as an appropriate Thickness.  
     
     
   • When Joists are selected, you can specify the Construction and Width desired.  In X16 and prior, you can only select the Type of framing.
   
   
   
4. Repeat this process for the Floor Structure, then click OK.
   
   
   
   

   The Framing Checkbox is how we tell the software what to build joists with, so be sure to only mark your Framing material and not your OSB material as framing. If you mark your OSB material as framing you will have 3/4" thick joists atop your actual joists.

   
   
   
5. Staying on the Structure panel, make sure that the Floor Under This Room box is checked, then click OK to close the dialog and confirm the changes.
   
   
   
6. Now that you have verified that a Roof and Ceiling are set to be built, and the Floor and Ceiling Structure are specified correctly, select Build> Framing> Build Framing  from the menu. 
   
   
   
7. In the Build Framing dialog, check the boxes for Floors and Ceilings, then click OK to rebuild the framing for each.
   
   In X15 and prior, check the Build Floor/Ceiling Framing boxes for each floor (Foundation, 1st, 2nd, etc.) that you would like to generate framing for, then click OK to rebuild the selected framing types.
   
   Do note that in order to create the floor framing for the 1st floor, a Foundation must be present.
   
   
   
   

   You can also check the box for Automatically Rebuild Framing for Floors and Ceilings so that framing will be regenerated automatically anytime a change is made to the model.