Our critters:
Tortilla (the big burly Manx) - 18 lb
Heidi (the sneaky little Schnauzer) - 8 lb
Jens (the Schnauzer puppy) - 3 lb
We do have a problem that Heidi is actually more nimble than Tortilla! We call Heidi our little mountain goat, she is into everything, bouncing from place to place, she can jump but she has to have a clear landing so the baby gate keeps her in her "kennel". But the one with the latching door might work. Tortilla was not completely opposed to the lid on the box, she is extremely particular about her box being clean and tidy. And will only use Swheat Scoop. My animals are high maintenance!
Amanda
2011 Specialized Epic Comp 29er | Specialized Phenom | "Marie Laveau"
2007 Cannondale Synapse Carbon Road | Selle Italia Lady Gel Flow | "Miranda"
You don't have to be great to get started, but you do have to get started to be great. -Lee J. Colan