Looks like you'd need a drill, 2.5 inch wood screws,(i drive the long way into the wood) 4-1x2x4, 8-1x2x2, and that will just be to create the box frame. You can get it cut to size at LOWES for free, if you have a LOWES. I am not sure how long the diagnal pieces would need to be with out actually sitting down and measuring it out. But if you had a pair of lopers, you could easily cut them to size with that and attach to make your side braces. Then cover with your choice of hardware cloth or chicken wire. I built a whole brooder like that. Took me less than an hour to do. Drill and a staple gun were the only tools I needed. If you don't have a drill nails will work in a pinch.