Exterior outlet on pole barn/corrugated metal

[ponytug]

Not sure I fully follow your description here. Would the LB be inside, to handle the 90 degree turn necessary to run from indoor -> outdoor? And then thread into the back of the weatherpoof box?

I think I can see how that would work, but would be a change from the current wiring in the building which is all MC and 4" square metal boxes. I prefer to be consistent if possible (for whatever reason the looks of things matters to me

There are lots of ways to skin a cat!

Yes, I was thinking that the LB would be inside, but you certainly could use a box and MC if you want the consistency. With MC, I think you might be able to use a threaded fitting through the wall to the weatherproof box.

Originally, I was just thinking an appropriate sized nipple could be water tight at the external weatherproof box, with a gasket/rubber washer at the metal outside, metal, a second gasket on the inside, and a washer or box or LB on the inside. Sorry not to have been clear enough the first time. Is this any better?

Bottom line: whatever works well for you. I just sweat the building penetrations a bit as they are guaranteed to be headaches later if not done well.

All the best,

Peter

 

[bdhsfz6]

There was no girt behind the location where I wanted to place the exterior outlet, so I screwed a piece of plywood between the girts above and below. I fastened a 4" box to the plywood at the place I wanted the outside outlet. I drilled a 1" hole through the plywood and sheet metal siding and used a 6" pipe nipple to connect the inside and outside weatherproof box.

I've since used the plywood to mount other equipment, and added a double duplex outlet for convenience.

 

[masscity]

This mine from 10 years ago. I think I used it once. Inspector approved it.

 

[drumminj]

This mine from 10 years ago. I think I used it once. Inspector approved it.

Thanks. Looks about how mine ended up, aside from the bubble cover (I hate those things!)