Wow, paper. Looks fantastic excellent job folding and gluing. Was wondering if you had a problem with it scattering while people knocked into it or hit part of it with their mini as they moved them about.
Print-n-Play Wargames and Miniatures Rules www.wargamedownloads.com
It is pretty sturdy. I do not know if they put any thing in the walls like foam core. This setup has been to the convention a few times. In person this looks more sweet than the picture. The next Recruits is Sept 12-14 2008 and I will try to remember to take another picture.