At our local beekeeping meeting, I was asking around about this subject and one of the guys offered to give me some old brood comb. Later I find it comes with a trap. This thing was a monster. The wood was 3/4 inch chip board, large enough for 8 deep frames, and sealed from all around with silicon. It has a 1 x 4 and a big hole cut with a hole saw to hang from a tree with.
Sometimes you want to put the trap in the woods as far away from the roads as you can get, and I couldn't imagine carrying anything like that, that far.
Of course I was smitten with the idea of having a number of nuc boxes I could fool with, and after making them from 3/8 inch CDX, I primed and painted them in Camo to keep them out of the way of "blue bears." I actually lose them if I don't catch the light just right or map where I hang them. After tying line around them to form a handle, they're easy to transport, relatively light, and hold 5 full size deep frames. I fashioned wooden blocks to slip in the entrance and vent cover to keep them bees whar they belongs.
As a regular nuc, they get really hot. I thought there would be enough ventilation, not so. The one painted white seemed to work fairly well. I think the design was for migratory tops, I accidentally had them 3/4 in. wider than the top of the box, so I added some strips to make a kind of telescoping cover. I would make them looser than they turned out. Also they'll need an inner cover.
I've got one small split in one of the Camo nucs. I fashioned a metal covered cover, and wrapped it in Mylar to keep the sun from burning the bees out. I also added some elaborate venting system. Those bees are teh happy bees.