Bluebee;
It looks, in your picture, like some kind of specialty entrance/bottom/top board between your jumbo brood chamber and the 5 frame supers. Is that an integral part of your brood chamber, or a special adapter to transition to the wood supers? I'm a bit slow witted, so I may be missing something obvious, but just looking at the photo, I can't figure out how the thing goes together. Thanks for the interesting pic.
jim