joining wall plaster layer with door family plaster layer

[shahidkhanzz]

I made lintel and wall plaster layer in door family itself..... but plaster in door family not joining of wall plaster layer in-spite of having same material

[alberto-secondi]

I'm assuming you want that because you want to show the lintel in sections, details, etc...

Is the "plaster lintel" included in the family?

If it is I'm wondering if you can achieve what you need by having the lintel drawn in the door family over the cut/opening without showing on any surface (lintel being completely inside the wall). Seems like the white finish would be flush with the rest of the wall so I would avoid showing the lintel outside the wall.

Alternatively, you could remove the lintel entirely to avoid having any transition between the two surfaces. Then I would show more information in sections/details using detail components.

[barthbradley]

You should be able to Join the Family Geometry to the Wall in the Project and remove all the visible edges between them. We do it all the time.  

Post your Project.  Let's see what going on.