Here is a picture of it without the doors installed. These are recycled wire spools (FREE!) from the electric company. We used 5 foot biddy wire, but I think it would work out better if you can find the 6 foot wire. That way, the middle section will be larger. If interested, I will post pictures of the final product.
We've made two of these so far and still have wire left over. I plan to put pigeons and small bantams in the pens.
Spools = Free
Scrap wood = Free
5' Roll of wire = $45.00