Best option to send models outside of company for use in layouts?

I know you can create an eDrawing model that the user would not be able to measure.  Is there a filetype that allows the customer to use the model in a plant layout but not be able to get detailed measurements, just basic LxWxH ?  Ive played around with exporting as a sldprt file and showing external faces, etc.   Just curious what others do in this situation.

Thanks.

SolidworksAssemblies