this may be so simple im missing it...

if the panel came with 12 'slots' you can put 12 slots worth of breakers in
there. if you have to modify it to put more breakers in, bad bad bad.

whether or not you are overloading your panel is another story...

randy

"spamfree" wrote in message
...

I am finishing the basement. There are 12 half inch spaces in both of
my main panels (both are 200A). I plan to use all the spaces for
circuit - or maybe leave one 1 slot.

Is there any danger, or code vilation, to do that?