Levelling bathroom wall

[zakaryfaithfull]

Hi, could someone please advise on the following.

We are currently renovating our bathroom - it was previously a separate toilet with a wet room next door, however we’ve removed the partition wall to make it one bathroom. We are going to be installing a bathroom suite, including electric shower (stand in bath) and shower screen.

Due to the removal of the partition wall, we’ve had to create a new stud wall as there will now only be a single door. We’ve built the stud wall, and we have moisture resistant plasterboard for the bathroom side which we’re about to fit.

However, the existing masonry wall is far from plumb vertically, and protrudes the plasterboard (once fitted) fairly significantly in some areas. This is where the electric shower will be (existing wires can be seen - these will be chased into the wall), with the bath end below. The bath end width will fit perfectly on the masonry wall and won’t need to protude onto the new stud wall. The existing masonry wall will also be tiled around the bath area only, with hardiebackers used, so we need to account for this also.

What’s the best way to ensure the existing masonry wall is plumb with the new stud wall, and prepared for tiling around the bath?

 

[Wayners]

Buy a 8x4 sheet of hardboard and cut the corner off will make a giant set square.
Offer up in the corner and off the floor.
See how it looks.
Decide if you need plaster or plasterboard to straighten everything

 

[foxhole]

Take masonry back to brick and over board the entire wall ensuring it’s square with longer wall.