Need to add a dedicated 20 amp circuit in my garage? Wiring to circuit panel?

I want to add a dedicated 20 amp circuit to run my 115 volt welder in my garage. The circuit breaker panel is conveniently located on the garage back wall about 3 to 4 feet from the attic access opening in the ceiling. When I climbed in the attic I noticed about 11 metal conduits that enter the top of circuit breaker panel. The circuit breaker panel has an unused 20 amp circuit. I would like the location of the electrical outlet to be on the adjacent wall and placement is not that critical. I don’t know how I can install wiring for this circuit. Thought I would try here before I call a contractor.

Thank you,
Jim

 

Is the house wired in pipe or are those metal conduits just being used as sleeves for NM (romex) type cable ? In other words is there anything coming out of the top of the pipes that you can see.

If you can see the top of the panel.... are there any more knockouts left ?

If you have access down the wall where you want to put the receptacle.... you should be able to run 12-2 w/grd NM type cable from the panel to the new location thru the wall.

 

They appear to be metal conduits that lay on the attic studs then make a 90 degree down turn to the top of the circuit breaker box. I am not able to see any wires as they are inside the conduits. In order for me to check for any additional knock-outs, I would have to dig out insulation and down between walls to check. This is where I get fearful of shock. Perhaps I should remove the front panel and look for available knock-outs looking up from the breaker box. May not be knock outs any left.

When I have time next week, I have to take another serious look at this setup. If a proper job does not seem feasible, I could take the front panel off the breaker box and “jerry rig” and connection. It’s far from pretty, but would work while I get my welding down over the next few months.

 

If these are actually a conduit system you could pull the new circuit through the conduits and branch off from a junction box assuming the box and conduit still have space.