sigur

Thanks very much for the advice Turkish.

So basically I need to cut out horizontally as far as the batten to the left and install a batten in the middle of the current hole ?

My only worry is that as Im removing tiles chunks of plaster are coming off, so Im not getting a solid surface to screw through. For the left this wont be a problem as there is a batten there but the newly installed batten could be a nightmare.