KINGBO 3-Tier Ferret Cage with 3 Front Doors, 23 × 17 × 39 Wire Cage, Animal Cage for Hamster, Rat, Chinchilla, Squirrel, Gerbil, Rabbit, Sugar

✿ [Extra Large Living Space] - Size : 23 x 17 x 39 inches / 59 x 43 x 99 cm. 3-tier pet cage allows several small animals to have fun at the same time

Hamster Cage 55 H 6-Tier Large Critter Nation Cage for Chinchilla Ferret Rat Squirrel Lizard Chameleon Small Animal W/Removable Tray and Wide Ramp, Anti-Chewing, Grey : Pet Supplies

4 Tier Steel Deluxe Small Animal Pet Cage, Large Adjustable Metal Ferret Chinchilla Rat Cage Small Animal Cage with Lockable Casters Grilles Pull-Out Tray for Squirrel/Guinea Pig/Bunny/Cat/Rabbit - Yahoo Shopping

3-Story Rats Mice Mouse Hamster Gerbil Animal Critter House Habitat Cage with Narrow 3/8 Inch Wire Body Prevent Escape and Stuck : Pet Supplies

KINGBO 3-Tier Ferret Cage with 3 Front Doors, 23 × 17 × 39 Wire Cage, Animal Cage for Hamster, Rat, Chinchilla, Squirrel, Gerbil, Rabbit, Sugar Glider Cage with Wheels (Black) : Pet Supplies

Small Animal Critters Cage Sugar Glider Chinchilla Ferret Rats Mouse Mice Habitat (24 Length x 16 Depth x 24 Height, Black) : Kitchen Aprons : Pet Supplies

KINGBO 3-Tier Ferret Cage with 3 Front Doors, 23 × 17 × 39 Wire Cage, Animal Cage for Hamster, Rat, Chinchilla, Squirrel, Gerbil, Rabbit, Sugar Glider Cage with Wheels (Black) (Black), Pet

X-Large 5-Levels Ferret Chinchilla Sugar-Glider Rats Mice Gerbil Cage with Removable Rolling Stand, 32-Inch by 19-Inch by 60-Inch : Pet Supplies

Has anybody used vertical cages before? Are they a good idea? We don't have as much horizontal space in our apartment, so we'd prefer to take advantage of a taller cage.