"dean" wrote in message
oups.com...
Yep - the previous house owner was a bit of a door knob nightmare!

When putting a |"backer" into the hole - whether wallboard or wood - Apply
white glue to the part of it that will touch the current wallboard. Then
either screw it together or just "tie" it somehow so it stays in the right
place until it dries. Then put glue on the back of the hole filling patch
material. If you have a tight connection between the patch and the hole
edge, squirting white glue into the joint will bond the two very well.

Bob