The colonial Rockdoor is a very secure door with no glass to break. This design of door goes back hundreds of years and looks as close to a wooden door as you will see. No painting required and minimal maintenance for the life of the door.
I would recommend either a spy-hole or an urn knocker spy with this door along with a chain to reduce the chances of opening a door to an uninvited guest. All Rockdoor colonials come with a 10 year guarantee and a building certificate on installation.