Box fill problem
I am trying to find octagonal boxes to install luminaires, and according to code, I need at least 4 inch by 1 1/2 inch boxes to accomodate the wiring. I went to HD and all I could find are 3 1/2 inch boxes (but they are marked as 4"). Lowes didn't have any either. Does anybody know where I can get 4 inch lighting boxes?