>For purposes of overwintering nucs, do you think that an 8 frame medium is better or worse than a 5 frame deep?
It is difficult to say. Perhaps in a cold climate the five frame deep has the advantage of the cluster staying pretty much on the same frames and only moving up, front or back, but not over to different frames. But I use the eight frame mediums.
>@Michael, they did. It used to be that a 1X8 was 7/8" thick and 7 5/8" wide.
But I never saw a 7 5/8" box until the one by eights were already 7 1/4"... back when they were still 7 1/2" I only saw 9 5/8" and 6 5/8" with nothing between.
>>The hive boxes used to be an even 20" long; the width was determined by comb spacing so it was always an odd number. When lumber went down another 1/8 inch there was a problem with compatibility. For the box length the solution was to keep the board centerline the same and shorten the boxes to 19 7/8 with an extra 1/16 inch bee space inside on each end. That way old and new boxes could still be stacked and the inside spaces still worked. The lumber industry messed the bee industry up, and the 7 5/8 size is a historical artifact showing it never quite recovered.
Certainly the 9 5/8" and the 5 3/4" are artifacts from that...