This is a very well-constructed gate, except for the feet, which tend to loosen up and slip out of place.  It works best if it is secured on at least one end to stabilize it . I have put a hook and eye system on both ends to use across a large door.  Without the hooks to stabilize it I don't feel it is secure enough because of the feet.

 It would be too small for medium to large dogs to use as a crate, but would work for a small dog.