A few weeks ago I found some nuc plans for nucs made out of plywood. If you want to look at the beesource thread I found them on click here. A few days ago dad cut some plywood for me so I could make four of these nucs. So far I've got all four built though I'm still working on the lids. For four nucs we use a 4' X 8' piece of half inch plywood. It's pretty cheep to make them which is nice. I just put mine together with our power nailer which makes it go pretty fast. Here are a couple of pictures of my nucs.