Jerry,
Thanks for the info. My mistake about incomplete information. I thought I mentioned earlier the project is a detatched single family residence, but maybe not. The storage is below and adjacent to occupied spaces (Den, Bathroom, Mudroom, Pantry, Kitchen, Wine Cellar). So we have several doors affected by this. We have no problem with providing the 20-minute rating. It is the self-closing requirement we are trying to get clarified and hope to avoid. Right now, we are just not sure if they are even reqruied. I will check out the ICC BB as well.

Thanks again, Wulff