INTERIOR DESIGNERS 2D vs 3D

I work for a large appliance manufacturer and we are contemplating making our desings available in a 2D or 3D or both DWG format which will be placed into your designs.

My question is, which format is the most commonly used for interior design layouts…especially kitchens. 2D or 3D? DWG or other extension?

Thanks for the help.

mostly 2D - for floorplans and elevations…

but I’ve been asked to model furniture in 3D based of 2D dwg for presentation renderings. and have always cursed manufactures that don’t provide basic 3D of their products… :wink: