[header] How to install an egress window [title] Find out how large your egress window needs to be. [step] Requirements vary based on where you live, so look up local codes on the subject. It will likely need to be about 6 square feet (1.8 meters), and the bottom of the window opening will need to be no more than 44 inches (1.1 meters) off the floor. 
[title] Measure and mark your cut on the inside wall of your basement with a grease pencil. [title] Build a temporary support frame inside the basement.