Prevue Pet Products Ferret Stack Series lets your ferret cage grow as your needs grow! When your ferrets outgrow their cage, our modular Ferret Stack cage system allows you to add a level, expanding as necessary. Available in four sizes, each cage measures 31’’ long and 20’’ wide with 7/8’’ wire spacing. Our single story add-on set lets you expand your Ferret Stack Home by a full floor level when your pet needs more space. Full story add-on can be combined with your 1, 2, or 3 story cage up one floor, for more room to play, live and explore. Add-On Set includes one plastic platform, two plastic ramps and hardware for assembly and attachment to your existing Ferret Stack Home. The large half-cage front door measures 15’’ wide and 19.25’’ high and features an ‘’escape-proof’’ door lock. The Add-On Set does not have a bottom panel and cannot be used as a stand-alone cage. Add-On Level measures 31’’ long, 20’’ wide and 20’’ high with 7/8’’ wire spacing. If adding an add-on set to our three story home, secure the final four story cage to the wall for stability, safety and security. Our one story modular Ferret Stack Home is expandable when your pet needs more space. This one story home features a removable grille, pull-out debris tray, integrated storage shelf and easy rolling casters. The large half-cage front door measures 15’’ wide and 19.25’’ high and features an ‘’escape-proof’’ door lock. Cage includes a plastic ramp, plastic platform and plush hammock to keep your fuzzy friend entertained and content. Platforms, grille and bottom tray are all easily removed for convenient cleaning. Space saving shelf holds toys, treats and supplies. Cage measures 31’’ long, 20’’ wide and 20’’ high (34’’ including stand), with 7/8’’ wire spacing. Our two story modular Ferret Stack Home is expandable when your pet needs more space. This two story cage offers plenty of space for energetic adult ferrets to run, jump and play. Includes plastic ramps and platforms, plush hammock and features a removable grille, pull-out debris tray, integrated storage shelf and easy rolling casters. The large half-cage front door measures 15’’ wide and 19.25’’ high and features an ‘’escape-proof’’ door lock. Platforms, grille and bottom tray are all easily removed for convenient cleaning. Space saving shelf holds toys, treats and supplies. Cage measures 31’’ long, 20’’ wide and 40’’ high (54’’ including stand), with 7/8’’ wire spacing. Our three story modular Ferret Stack Home, perfect as it is, and expandable when your pet needs more space. Tall three story cage offers plenty of space for energetic adult ferrets to run, jump and play. Includes plastic ramps and platforms, plush hammock and features a removable grille, pull-out debris tray, integrated storage shelf and easy rolling casters. The large half-cage front door measures 15’’ wide and 19.25’’ high and features an ‘’escape-proof’’ door lock. Platforms, grille and bottom tray are all easily removed for convenient cleaning. Space saving shelf holds toys, treats and supplies. Cage measures 31’’ long, 20’’ wide and 60’’ high (72’’ including stand), with 7/8’’ wire spacing. If adding an add-on set to this cage, secure the final four story cage to the wall for stability, safety and security.