We used this for our puppy from 8 weeks old Brittish Bulldog - By attaching the panels of a wire puppy pen to each side of the crate either side of the door it made for the perfect little safe spot for our new baby to live in. Shes now 5 months old and uses this as a kennel inside her outdoor pen also from Crazy Sales. The floor slides out like a tray which makes for very easy cleaning the cover is durable and warm the construction is strong and its very easy to fold away and put together.