There is not enough room in the bike shed for serious welding. There is some room in the boat shed for a welding area. Four #8 wires leave the sub panel in the bike shed. They go out through the wall and up about 18 inches. Then, they go back through the wall, across the bike shed under the attic, through the wall, across the ceiling in the boat shed, along the wall, and to a future panel box. Two more ground rods are installed beyond the boat shed and the ground will tie into the boat shed panel box. It took all weekend to figure this convoluted route and to install the ground bars, conduit, and wires. Welding up these pipes is a major project and I have not even started yet.