Iheartchicks<3 :
i dont understand your drawings!! XD
They tell you how to cut a 4 foot X 8 foot piece of plywood. The one with the two 2x3 brooders I had Lowes cut for me and I didn't waste any wood!
Here are some cut sheets I threw together on photoshop. These are aprox dimensions, and it will depend on the thickness of the wood. I put the wall on the outside of floor and screw into the floor. The top is made from 1x2 boards and I just made the cuts as I was going along. The extention is...
I have built three of them recently, (1)3'X4' and (2)2'X3'. I used 1/2" plywood and screwed it together. 1"X2" boards are used for the top and has hinged tops and lifts off for easy cleaning. I can give you dimensions if you are interested.
If you plan on using sand I would go with a...