Ok, so after the Great Fox Massacre of 2007, we completely tore down the old (chickenwire) pen... and built a new and improved pen. Some of the parts we had left over from other projects, but we did have to buy a lot of materials. It's worth it for my babies! We used treated 4x4s for the posts, 2x4s for the frame and welded wire for the sides and bottom. I used the remainder of my chicken wire and buried it in an L along the bottom. We also have cinderblocks buried 3 deep for a "foundation." The door we picked up for a couple bucks at a Habitat ReStore. Looked so cute, and fit just right. This is my husband putting on the roof. I love that he humors me. I don't have a good picture with the roof on, because it got dark by the time we were done. The whole roof is covered with welded wire also. I'm thinking about adding a sunshade and/or tarp over part of it.