[pupresq]

I believe Varikennel makes a giant sized plastic crate or they used to. Mine's at my parent's house so I can't verify the brand but I was able to pick it up at a pet supply shop. It's considerably larger than the extra large (which I think of as just "large") that we normally use for GSDs. My giant one was used for a 113lb Shepherd mix to fly in. I recall sitting in it myself, with a 85lb Rottie, and a Dalmatian (everyone had to come check it out) and all three of us fitting just fine.

I think this is it:
http://www.dog.com/item/petmate-vari-kennel-traditional-pet-crate-giant/