You may prefer to just go through the wall next to the door. It would
be easier in some ways (no metal, no $500 door to ruin), but harder in
others (multiple layers of drywall, studs, sheathing, siding, etc.)

-Kevin


Keep in mind that a pet door weakens your security and unless you get
a "smart electronic door", you may be setting yourself up for unwanted
animals to get in your house.

Beachcomber