This is a full view of Betsy, all opened up. I shot the picture from the side a little bit so that you could kind of see how the top half folds down and fits into the bottom half. You can see the hinges in the front between the top and bottom sections. The whole thing is 1/2" top-grade plywood. I'm not much of a wood-worker, so I was pretty pleased with how it came out and the snug fit I got between the top and bottom halves. The width of the inside is 22" - a 2-space panel width wider than a standard 19" rack. Each row is 5.25" (3u) high.