I built this all pine shelving unit for our sunroom, converted to home-school room. The unit consists of 12 individual 36" by 14" cubbies, each with a vertical divider. Each individual cubby is glued together and the back is glued and nailed in. I did not finish it as I like it the way it is. I screwed two small board to the back of each row of cubbies and then screwed the boards into the wall, for safety reasons.