[Cluemanti]

Get the biggest crate you can get with an adjustable divider. This way you can make the room inside the crate bigger as the puppy grows and won't have to keep buying new crates.

I suggest either a 42" or 48" crate depending on how big you expect your puppy to be as an adult.

Here's an example of what i'm talking about:

Amazon.com: 48" Three Doors Dog Pet Bed House Folding Metal Crate Cage Kennel with Free Divider: Kitchen & Dining

Same one I bought from Amazon. I have a smaller one in my bedroom but as soon as he outgrows that one will be moved to the big one while I'm away.

 

[Cluemanti]

Actually look for one with free shipping, those things are heavy! I didn't have to pay for SH a few months ago thru Amazon.