No matter where you go, the first line of defense for your home is the door. It keeps out everything from pests to the elements to burglars seeking to rob you of your good fortune and name. Oftentimes, the quality of the door and its lock system is all it takes to keep intruders out of your house. So it is extremely important that you find the appropriate lock and deadbolt to install on your door. Many different types are available though one deadbolt may look similar to another. So here are some things you should be aware of.