Carlson Secure Double Door Metal Dog Crate, for Small Pets, Includes Divider Panel, 24" L x 18" W x 20.5" H

The crate was very easy to put together. As soon as you open the box, it is already assembled. All you have to do is lay it with the tray down (just like it will be when the dog is in it) and unfold it all the way. The latches are a little tricky to get all the way in place **some of the hooks latch to different parts of the cage**. Missed a few at first but then once I gave it a once over, I connected them all. The dog pictured is a 70lb German shepherd. She had plenty of room in the large crate. You can also keep both doors and place the crate in a position where both doors are accessible. If not it also comes with an extra panel so if you don't want the double door, you can take one door off and put the extra piece on which will replace one of the doors. The tray is removable which makes it easy to clean I found the crate to be pretty sturdy and would recommend it for a large dog; the crate has a lot of room for the dog to turn around if it wished to face any particular direction.

I already have the large version of this crate but needed a small one to be able to transport my cats to the vet. These crates are the best quality I have seen. Very sturdy and attractive. The wires are a black coated steel so it's not likely to rust. It's so easy to setup, out of the box you just unfold it and secure a couple hooks. The small crate is 20” H, 18” W and 24” L. And weighs about 13 lbs. It's the perfect size for one small pet but you could also comfortably fit two. There's also a wire separator that you can put inside that just hooks on. That would be perfect if you have 2 in there that tend to argue. My favorite feature is that it folds up for easy storage when you are done with it. Folded up it's only 2-3/4” high. It has 2 doors, one on the front and one on the side. Both have the double locking system. There isn't a door on the top like some of the larger models. You can clean the bottom plastic pan by sliding it out. It's a great little crate and my cats actually love being in it.