I am installing a curtain runner onto a wooden strip which in turn is fixed
to the plaster wall. The position is 3 ins above the inside of the window.
What sort of fixing should I use?
Would I expect a cavity at that position or will it be solid
Also within the 3ins I will add a blind and fix this to the plaster wall.
Again what can I expect behind the plaster wall?
Any advice would be appreciated

Blair