out of plumb wall – can i furr out at screw intervals?
hopefully a simple and easy question :-).
my studs are out of plumb by about 5/8″ over 8 feet. I will be putting kerdi board on it and it is my plumbing wall. the wall is flat horizontally. it is not load bearing.
tapering shims to make this work would be very difficult for me (if not impossible). some of the studs have plumbing attached (or blocking) so sistering an entire 2×4 is not possible.
i used drywall shims to make one of my walls plumb and flat, and used wet shimming for another wall. however, this has me stumped.
could i add shims (maybe about 6″ in length), doubling/tripling up where needed (to ensure plumb), to only the areas where the kerdi screws will go? The kerdi board would be properly supported where screwed in, but there would be empty space between the board and the studs in certain areas. or perhaps do something like i did here with pieces of 2×4 in the attached pic on the leftside stud to provide backing for screws at intervals?
kerdi board needs screws every 12″.