10 bay queen castle finished and ready for trial run

[Woody Roberts]

I took a 10 frame deep and added 1/4" dividers to make 4 two frame mating nuc. 1/2" entrance holes, one high, one low on each end.
No issues with robbing or with queens finding their way home.
In hot weather they have trouble ventilating though. I'll add some of Robos screened vents.
My inner cover is 2 folded cloth's. I can look at either end or either center while keeping everything else closed.
I'm not sure it really matters. Seems to me these young bees really want to stay home.

[Yankee11]

So you have 2 holes on the same side of the box?

[Woody Roberts]

So you have 2 holes on the same side of the box?

Yes, two holes on each end. One high, one low. The handles are 1x2 one hole is above and one below.