I'm installing a subpanel in garage. Is it ok to place a juction box before the subpanel?

Question

This way, I can run wire for a subpanel branch thru the same pipe used to feed the subpanel. The wiring from the main panel to the subpanel would be continuos and unspliced.

Answer 1

As long as you can pull the wire through the pipe and don't cause any damage to the insulation, Knock Your self out. You may want to squeeze a little lubrication on the new line as it makes the job easier and no friction

Answer 2

yep