The lintels ive used seem to be slightly wider than the blocks which is normal from past experience. However im trying to fit plasterboard using dot n dab adhesive to either side of a block wall and the lintel is pushing it out at the top. Ive removed some of the plasterboard sheet to get round this problem but now im unsure about how to go about finishing this job? Just use filler to bring it out at the top?
Thanks
Thanks