Which crate?

I need to find a strong crate ready for when I bring the new pup home on Friday. Casper has destroyed 2 metal ones by pulling on the door while in them, which has bent the bars in and I had a right old time getting it open so he could come out when I got home! So ideally I need something the pup can't get her teeth into so I don't go through the same with her as I did with Casper! The plastic ones look so small, and I don't see a fabric one lasting long. So has anyone got one that survived their dog?

Just incase someone comes looking with a similar question, I found one! Pets at home do one that is thick bars and not the thin wire ones. So far it's survived

http://www.petsathome.com/shop/en/pets/dog/dog-crates-and-carriers/dog-crates/dog-crate you may need one like this

I went I store and saw one similar to that but it looked thin. They also had this one which is the one I got as the bars are thicker and the crate looks sturdier then the black one http://www.petsathome.com/shop/en/pets/dog/dog-crates-and-carriers/dog-crates/double-door-crate