13. Drill a couple of screws part way into your frame (top, middle, and bottom) to hold your door while you double check that everything is level. Once everything is aligned, go ahead and finish securing your screws and hinges. Follow the manufacturer instructions for securing your frame, the mounting methods will be different for different door materials.
14. Check that your weatherstripping is secure against your door, and use shims to secure your frame at the top, middle around your latch plate, and bottom.
15. Test the weatherstripping on the bottom edge by pulling a piece of paper under the door. If you can pull it with some resistance, but no tearing, that’s where to secure the adjustable bottom cap.
16. To finish off, trim your shims, use low expansion foam insulation in the crevices, and add any trim desired on the interior and exterior!