Is there a limit to the number of double breakers installed in a CB panel (besides rated/maximum amp draw). I am in the process of finishing my basement and am at the wiring phase. I have a 100amp Cutler Hammer panel with 22 poles and 22 spaces (I need to be able to run a total of 29 circuits). Does a double breaker count as two circuits even though it uses a single pole? My aletrnative is to upgrade the panel to a 100amp 30 pole 30 space. I want to get this right before the inspector is scheduled. Any help will be appreciated.

Thanks.