I need to install a junction box on an interior wall to install a wall sconce. Problem is that there is no cavity behind the drywall to install the box. there is a triple wide 2x10 header stacked onto a double top plate at the level the box needs to go.
Short of having to cut into the header to recess a standard junction box is there another way to accomplish the same thing?
I was thinking maybe a round light pan like you might see on an exterior light fixture. this thing basically mounts onto the surface of the wall, they the sconce cover plate covers that.