On Thu, 18 Jun 2020 22:53:16 -0400, J. Clarke
wrote:

On Thu, 18 Jun 2020 21:37:53 -0400, wrote:



Is it possible that the wall is plaster (and all that goes with it)
and not "drywall"?


If it's plaster - I hereby withdraw my suggestion
of using a utility knife ! :-)

My walls are truly annoying. Plaster over drywall.


We called that drywall - lath -
back in the mid-60's - 16 x 32 ? inch panels -
sometimes containing asbestos ..
as did the plaster
All combined with the Johns-Mansville
asbestos siding !
It's a wonder we're not all dead ! :-)
John T.