I only have 3 of the 4 nuts, but I do have all 4 screws.
The top and bottom slide to lock to each other. This is easier with 2 people, but I can manage and I’m not very strong.
The door has 2 twists to open, which is not only convenient, but makes putting the kennel together a lot easier!
36 in x 21 in x 31 in
No cracks or chips.