Theatrical theater (code CBC)

I am doing a theatrical theater for the first time and am trying to classify the different occupancys within the building. 3 areas in particular

1300 sf Rehearsal area:  B or A-1?  If I use the "shop/vocation" line item on CBC Table 1004.1.2 for my OL I have a OL of 26 which is under 50 and per CBC 303.1.2 I may be able to call this a B.  I just don't this they would ever have more than 50 people for a rehearsal for a theater where the stage is only 450 SF.

500 sf Green Rm: B? for the same reasons as above except I would use "Assembly without fixed seats" and the 15 net/sf from CBC Table 1004.1.2 .  Would probably need the BO's approval since there is no tables just a few couches.

And lastly, 520 SF backstage. Per CBC Table 1004.1.2 there is a line item for "stage" so would I apply that to backstage or just the stage area?  I think both.  And would it be a 'B' Occ since the OL is <50  (520/15=35)?

Thanks folks for your help

 

Wayne Calif-Architect

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