I have recently taken away a cupboard in my kitchen and in doing this have been left with a gap where the old wall which is away now used to meet the permanent wall. Behind the plasterboard that is already up is the brick external wall. I now have a 3" gap in the plasterboard here and need to fill it. What is the best way to fit the filling peice of plasterboard to the brick so i nolonger have this 3" gap??
Thanks
Thanks