CarryMyDog.com is proud to offer these strong stationary aluminum dog crates. The term "stationary" simply means that once assembled, they do not fold down. They are always ready for use. Made from .063 aluminum then powder coated these heavy duty dog crates will be the last dog crate you will ever need. Airline approved for transport of aggressive and non-aggressive dogs. These crates will be a welcome addition to your home and to your peace of mind. Lightweight yet super strong these crates can be moved easily. Their design creates a "den effect" which is known to have a calming effect on some dogs. These are real heavy duty dog crates. Don't settle for anything less. Proudly made in the USA and Canada. Warranties range from 30 days, 90 days to Lifetime depending on which crate you select.