The terminals on the the ground/neutral bar may be approved to accept more
than one conductor under each screw. Check the panel labeling for details.
You could also buy a ground bar to screw into the panel.


John Grabowski
http://www.mrelectrician.tv


"ThePetPage" wrote in message
...
Hi, I have room in my Square D 40 circuit 200A panel for 4 more breakers.
But I
do not have any more room to put the white and the ground wires. This is
because one of the larger breakers, a 90A that feeds a subpanel in the
garage,
has its nuetral and ground split and under multiple screws. The 2 gauge
wire
apparently wouldn't fit under one screw.

A) Is THAT a problem safety or code wise?

B) Do they sell a strip I can add to the box or would I be better off
adding
another subpanel in the basement right next to the existing main panel?

Thanks, John