My husband just got his second Search and Rescue dog as a nine week old puppy. I knew he’d been wanting one of these crates for years with his first SAR dog. I started to do research and felt pretty sure I’d figure out the size she’ll need as an adult and ordered it for him for Christmas. Turns out that by 11 weeks old, she’d figured out how to open her other wire crate and let herself out in the car. So, as soon as the crate arrived, he got his present early and he’s thrilled with it for her! It’s a little big for her now, but that’s okay. She seems to really love it, too, because she knows she’s going to training when she gets in that crate in the truck.