My question is about stapling wire. I came up short on a 12/2 romex run so I cannot staple it to the stud where the outlet box is. If I sister a short 2x4 to the stud, that will give me just enough slack to staple the romex. Would an inspector have a problem with this?
I am not very familiar with the term sister, but if it means you're adding a piece of stud to another stud to get closer to your NM for stapling. Then I would say no one would have a problem with that form a code standpoint. Just make sure you're in the center of the wall or at least 1 1/2" from the drywall.