Plastic box extenders

Eddie702

Licensed Electrician
Location
Western Massachusetts
Occupation
Electrician
I know they make both plastic and metal box extenders for when a box is set too deep. Is there any reason you can't use a plastic box extender with a metal box provided of course you bod the device to the metal box?
 
Yes. In fact, I have a couple of the Arlington ones. I just checked on their site, and they are saying it can be used in plastic or metal boxes and prevent the wire /contact that @LarryFine mentioned and they are good for a 1 1/2" set back.

A good problem solver.
 
When I used to do houses that was the first question I asked. 'What's going on the walls and ceilings? I am assuming everything is 1/2" sheetrock unless you tell me otherwise. Except for the attached garage which is usually 5/8". But you sometimes couldn't get a straight answer.
 
When I used to do houses that was the first question I asked. 'What's going on the walls and ceilings? I am assuming everything is 1/2" sheetrock unless you tell me otherwise. Except for the attached garage which is usually 5/8". But you sometimes couldn't get a straight answer.
When there is 24 inch centers on ceiling framing it generally gets 5/8 rock because 1/2 inch rock may sag over time.
 
I know they make both plastic and metal box extenders for when a box is set too deep. Is there any reason you can't use a plastic box extender with a metal box provided of course you bod the device to the metal box?
I could see some inspectors thinking you should use metal extender in places of assembly if there is any other situation where non metallic wiring methods is normally prohibited.

I don't think there is a code section that would specifically address the box extender type in this situaiton though.
 
When I used to do houses that was the first question I asked. 'What's going on the walls and ceilings? I am assuming everything is 1/2" sheetrock unless you tell me otherwise. Except for the attached garage which is usually 5/8". But you sometimes couldn't get a straight answer.
I did a cabin for my cousin a couple of years ago, he said wall and ceiling finish was 3/4” tongue and groove. Turned out to be 2 1/2” tongue and groove on the ceiling, and 1” on the walls! Did I mention he owned a large sawmill business?
 
I did a cabin for my cousin a couple of years ago, he said wall and ceiling finish was 3/4” tongue and groove. Turned out to be 2 1/2” tongue and groove on the ceiling, and 1” on the walls! Did I mention he owned a large sawmill business?
did he need beefier framing to support the weight?
 
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