I'm finishing my basement with 1x3s on the ceiling to attach wallboard. Unfortunately, two of the ceiling joists are about 1/2 inch lower than every other joist. They aren't sagging--they were just put in (with hangers) too low.
What's the best way to deal with this so that I can have a level ceiling? I'm thinking about running a 1/2" shim piece between the joists and the 1X3 on all but the two low joists. Will this work?
bob