I am picking up a nine week old male GSD puppy tomorrow, and I would like to buy a crate beforehand for crate training. I would prefer to get an appropriately sized one that will be easy to move around, then upgrade to a larger size as required (i.e. not a large crate with dividers). I am thinking of using these
basic models from Petsmart, but I'm unclear on which size I should get to start. Any advice would be much appreciated!