Pet Crates: Precision Dog Crate / Wire Dog Kennel at PETCO
above find an example of a crate.
http://www.petco.com/Shop/SearchResu...&Ntt=precision
above find some exercise pens and crates.
http://www.petco.com/Shop/SearchResu...&Ntt=precision
above find the ex pen that we use now.
We crate trained until he was maybe 6-7 months I think.
Then, we used the expen to block part of the room so he could still be confined and safe but have more room.
You can find many manufacturers but I'm just suggesting the ones we used.