Wire new receptacles from outlet at main panel??

[MacC]

There's no room in my panel for new circuits. There is a duplex outlet at the panel on its own 20A breaker. Can I swap that outlet for a GFCI and use it to wire new receptacles (a couple of lights and outlets) in a small detached outbuilding about 10 feet from my house? I would use regular 12-2 from the panel outlet and junction to direct bury UF before it leaves the house.

Note: The outbuilding had power when I bought the house, but I didn't trust what was there and disconnected it. It was on a shared 15A circuit from the main house, and there was visible damage and repair to the UF cable feeding the building.

 

[JerryR]

No toom for new circuits? You can always use twin single pole breakers to free up space for another circuit.

 

[Sponsor]

 

[Stuff]

Plan sounds fine. There are a few exceptions for branching of of the receptacle. If it is for a circuit serving laundry or garage then it likely can't be shared.