I would fir out the walls to make them plumb and straight.1
Construct a plumb stud pocket
according to the Roughing-in
information on the back page.
Looking for an advise
I'm installing 4 piece pre-made shower (pan, back wall, side walls) and there's a big gap of 1-1/2" between back wall studs and shower pan
What would be the best way to breach the gap, extend studs? 2-3 layer of 1/2" backerboard or some kind of long wood planks (parallel to the floor)? Some other option?
Single wood plank will take care of pan problem, but then there's back wall that needs to be installed and then on top of it there will be drywall (going to the ceiling)....
Last edited by Terry; 03-27-2013 at 12:20 PM.
You can either sister wood studs alongside, or pick up a small table saw and shim the wall out. A table saw is nice for getting just the right size shims.
If the walls are not perfectly flat and plumb and in plane with each other, just take a new, full-sized stud and screw/glue it to the side of the existing ones and make it nice and plumb and square. Quicker and easier than ripping a bunch of studs that won't take into consideration any bowing or other issues unless you want to try to make some really long tapered shims, or if bowed, curved, which would be really difficult.
Important note - I'm not a pro
Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013