its been long time we wanted to export GRID CEILING (which we did using SLAB ) in IFC or REVIT and show GRIDS.
This was required, as MEP consultants working on using REVIT could not see GRID in MODEL. They used to get our 2d DWG as overlay.
But we now found a way - "SLAB ACCESSORIES"
- Model the Ceiling using SLAB (we any way dont need any suspension to show its more of 300 series detail)
- From slab accessories - use CEILING GRID USA 17
- From Custom settings use 3 type : stripe with appropriate width.
- apply required classification to recognise as CEILING GRID
- Export to IFC



But still want to understand if there is any better way.
We do not want to use Ceiling Object for sure... 🙂 due to Large number of polygons count.
@ARCHICAD why this object USA CEILING GRID? and not JUST GRID CEILING?