Does anyone make a 2-gang shallow old-work box?
My exterior walls are masonry with furring strips - regular boxes won't fit. I need the less-than-1.5"-deep "shallow" boxes, and yes - I am aware of the box fill limitations this imposes.
For single-gang devices, Carlon has a nifty one-gang shallow old work box that has a side piece that slips into the wall, providing full box volume with a shallow profile and single-gang hole in the wall. Just wish it was part of their "Super Blue" line instead of being the flimsy blue plastic..
The only 2-gang shallow boxes I've been able to find are new work, and I can't find ANY 3+ gang shallow boxes. Does someone make a gangable metal shallow box I could use for this?
For that matter, is a 4-gang old work box even a good idea? Or do I really need to open the whole wall up at that point?