Ceiling on Dynamo Revit

HI @giuseppedinuzzo and welcome…Try sparrow there is a node for ceiling grid and if you are i new version…i saw this post from @john_pierson it could probably help…Ceiling Grids from Revit API in Dynamo (Python script node) - #3 by Vinster1 and a very alternative way with dimension reference
Create individual ceilings from pattern - #4 by sovitek