When I made my nucs I housed them in a 10 frame deep with a division board to keep the colony in a "smaller" box. As the colony grows the division board can be moved over as the numbers increase. The division board allows the colony to be in only one half of the deep, this keeps them warm. There may be a time when I will use mediums or 8 frame boxes, but for now I have all 10 frame deeps and they are doing well for me. I have ways of working with these, yep, I have my ways. Have the best of a wonderful and beautiful day. Cindi