Said It Here

Sanity check my plan to run power outside

Determining if a custom electrical setup is viable requires reviewing specific details, such as using 12/2 MC cable, adding a 6ft ground rod, or welding boxes directly to walls. Without a proper sanity check, you might overlook critical issues when trying to run power outside a shop to shipping containers.

What people tried

Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.

  1. 1
    Consulting professional plumbers for on-site assessments
  2. 2
    Running 240v with 4 conductors to a subpanel to balance loads and deliver more power.
  3. 3
    Running buried PVC conduit with waterproof wire to allow pulling more circuits in the future.
  4. 4
    Welding an intermediate metal plate to the wall and bolting the electrical boxes to the plate instead of welding them directly.

In their words

Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.

r/Plumbing1 person · September 2026

“Just wonder how viable this plan is or if there is anything I should be thinking about with it”source ↗

DSF767 · r/Plumbing · 1 upvotes
r/askanelectrician1 person · October 2026

“Hey, got a question for you all to check the sanity of what I'm hoping to do in order to get some power ran to outside my shop for some shipping containers.”source ↗

“Inside the container with the freezers, I'm hoping to weld the boxes directly to the container walls and run 12/2 MC cable between them and also run a 6ft ground rod to ground out the whole system.”source ↗

sjack1209 · r/askanelectrician · 1 upvotes

Where this came up

People with this problem also raised