Thank you everyone. I appreciate all of your guidance.
I've decided to run 1-1-1-3 AL SER from the panel to the junction box. Then 1 AWG singled stranded (4 wires) from the junction box in the current building through the Conduit/LB/Junction/Conduit to the new panel in the garage. And will...
This is a post similar to others...but taking a slightly different spin. I want to run a 100A SubPanel to a new detached garage.
From 200A Main Panel to 12x12 Junction Box where the LB enters the garage is 45' run through the attic, all inside the current garage.
From 12x12 Junction Box...