I'm building an insulated dog house. When I purchased material for the dog house I also purchased material for the shelving unit. I got some hardboard to enclose the back side and 1x12 lumber for the shelves. I have enough for 6 shelves. I need to figure out the spacing to use. On the dog house, plus side. I have some left over material. A small ¼” plywood panel. This will make a nice face frame rail for the shelves. I may add a small raised lip to keep things from sliding or rolling off the shelf. Not sure on that. A small piece which may make a nice glue bottle holder. Plus I have a good amount of foam left over. There may be a profile plane or two in my future. Who knows.