If someone added an interior wall and wanted to add an outlet would you recommend to pull the power from an existing wall, or from the attic?


Either one will work fine, but the attic may be easier. At least it may be easier if you can find a junction box in the ceiling - most homes will not have any. Another option is to put it on a lighting circuit, taking power from a ceiling light that has constant power in it.

On the other hand, if you choose to use an existing outlet you already know it is on an outlet circuit and that the power you need is there.

Updated on January 8, 2018

Original Article:

Adding Electrical Outlets:  How to Wire a New Outlet to an Existing One
By Dan Harmon