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Discussion Starter · #1 · (Edited)
While working with my hives this week, I noticed the bottom board on one hive is reversible. One side is maybe 3/4 inch deep and the other side maybe 3/8 inch deep. I'd never noticed that before yesterday. I've always had it with the deepest side turned up.

I'm guessing the deeper side is for summer and the shallow side for winter? Is that right?
 

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G3 is bang on, although I am willing to bet most never use the 3/8" side, we use 3/4" entrance reducers to narrow the opening for overwintering.
 

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I have only used the narrow side to cut down on intruders like small hive beetles and robbing. A five inch opening with the narrow side is all that is required according to extensive research. There was a side benefit of higher honey production with the narrow opening since more bees are freed from guard duty to forage.
 

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Gary. .... I would be concerned about such a small entrance.

I would be fearful that in very warm weather the hive could over-heat.

I would also wonder about the evaporation of water and evacuation of water vapour during the nectar to honey processing.

There could be a difference between solid floor and SBB.

Thoughts please. :?:
 
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