I know this has been done many times over but I haven't found the right thread.
I have a 3000w inverter that is now hidden behind a cabinet I built for the interior of my van:
Before
After:

The inverter and other house wiring is behind that thinner cabinet. I would like to add a standard household/115V GFCI outlet to the face of the cabinet but I'm curious how others have run the AC power from the inverter to a similar outlet? The GFCI outlets are typically 15A and the outlets on my inverter have 15 and 20A breakers so I want to match the load with whatever cable I buy. It needs to have a standard 3 prong male plug on one end (aka NEMA 5-15) and loose wire at the other to connect to the outlet and only needs to go 3 feet.
Does everyone just buy an extension cord that carries the appropriate number of amps and start cutting it up or is household Romex the preferred way to go? I also have an old computer power cord that I could sacrifice but it is only rated to 10A. I never plan to push the limits of what the outlet can handle but I also don't want the wire to be the weak link.
Thanks!
I have a 3000w inverter that is now hidden behind a cabinet I built for the interior of my van:
Before

After:

The inverter and other house wiring is behind that thinner cabinet. I would like to add a standard household/115V GFCI outlet to the face of the cabinet but I'm curious how others have run the AC power from the inverter to a similar outlet? The GFCI outlets are typically 15A and the outlets on my inverter have 15 and 20A breakers so I want to match the load with whatever cable I buy. It needs to have a standard 3 prong male plug on one end (aka NEMA 5-15) and loose wire at the other to connect to the outlet and only needs to go 3 feet.

Does everyone just buy an extension cord that carries the appropriate number of amps and start cutting it up or is household Romex the preferred way to go? I also have an old computer power cord that I could sacrifice but it is only rated to 10A. I never plan to push the limits of what the outlet can handle but I also don't want the wire to be the weak link.
Thanks!