Jolie wrote:

Thanks for the great tip. What works beast as insertable wall? Veneer?
Cardstock?


Cardstock generally works pretty well. Sometimes it takes a little
work to make sure that it doesn't warp from the moisture in the
wallpaper glue or the paint. If it's going around a visible corner,
it doesn't work that well for a painted room unless you can do a very
clean fold - difficult with cardstock.

You also have to plan carefully for windows, doors, electric
connections, etc.

We have a dollhouse where we made one bathroom's back wall a
completely removeable piece of foamcore to allow access to the hallway
behind it.

- Herb