Originally Posted by yummy mummy
Should I purchase plastic or metal boxes to add a new receptacle?
I have a book and it tells me to go with plastic as opposed to metal.
It states that metal is for commercial and outdoor use.
I will be attaching it to the wall studs and then insulating?
Metal is not necessiraly for commercial use, it was used for both until fairly recently when first fiberglass, then plastic or rubber took over the residential area, because they are cheaper to purchase and less labor intensive to install since each box itself does not have to be grounded.