What he said. I used both depending on if it was "new construction" or adding a layer to an existing wall. Home Depot/Lowes sells both the box extender, and boxes you can adjust with a screw to bring the in and out so they are perfectly flush with the wall :TThe boxes are usually flush with the first layer and you can use a spacer ring to make up for the second.
Another option is an adjustable depth box. You nail to the studs as usual, but then you have an adjustment screw to line up the final depth. These are bit pricier, but for variable depth stuff, they are worth it. I"ve used them for tile installs, since the backer+tile is often not exactly the depth of drywall or a spacer.
Yeah, I've looked at them, and looked at them, and looked at them... I just don't think I'll queeze them into where theyhave to go, which is kind of why I dug out behind the boxes that are there now, which is why there's a gap to where the what covers the boxes is... Trouble is, unlike the extenders for 1gang boxes, the ones for the octagon are quite strong and ridgid...Probably not but if you look long and hard, you might find mud rings (box extenders) in that shape that would work.
PVC is an interesting idea. Also, I might just be worried about nothing. Certainly nothing as a practical matter...I don't recall seeing octagonal adjustable boxes. Just single and dual box sizes. The whole purpose of hte code is to ensure nothing flammable/conductive could cause a fire. You might be able to use some type of PCV L-channel and cut/bend it into shape.
We have a guy here up In Canada that has a TV show called Holmes on Homes now called Holmes inspection that he shows all sorts of things contractors do wrong and he has to go in and fix them. Very scarry:rolleyesno:The sad thing is, most codes are very simple to follow and not necessarily more expensive. People just don't know them and go for the easy solution. Now when a pro does that . . . :explode:
ARGH! I've seen every episode they run here in the states. New episodes aren't being run here. Sometimes Canada is SO much better... :whistling:We have a guy here up In Canada that has a TV show called Holmes on Homes now called Holmes inspection that he shows all sorts of things contractors do wrong and he has to go in and fix them. Very scarry:rolleyesno:
When I was rewiring some of the recepticals in my home theater, I did the right thing and verified every plugin in the circuit was dead after turning it off at the circuit breaker using both a light and a volt meter. Unfortunately I discovered the hard way that the receptical box with the common back to the circuit breaker was also the same common for the (still live) smoke detector circuit. Different hots, same common :rant:Its amazing what codes are in place for all sorts of things.
Ones I see people doing wrong all the time are covering up junction boxes completely with drywall, using extension cords up above ceilings or in walls, Using extension cord wire for actual wiring between boxes, and putting more than one wire into a single breaker inside the panel. All No No's.