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If you want to let in plenty of sunlight while keeping your home well insulated, your best bet is a patio-style door with two doors with full-view windows, including one primary door and one secondary door behind it, such as a screen door or storm door. This two-door system will let in plenty of natural light while maximizing insulation.

A prehung door is a door that comes ready to install, already mounted in its frame with hinges and stop molding included. Because everything is factory-aligned, installation is quicker, more precise, and convenient, as you don't need to drill or align the hinges yourself. This makes it a smart option if your current frame is damaged, uneven, or if you're working on a new build. Installation involves fitting the entire unit into the rough opening, shimming and leveling it, and then securing it. If you are replacing an existing prehung door, the process is even simpler, often just requiring you to swap the old unit for the new one and secure it with a few screws. Prehung doors typically cost only slightly more (around $20) than a door slab alone, making them an efficient choice.

Yes, you can absolutely install an exterior door yourself, and installing a prehung exterior door requires few tools. However, exterior doors are heavy and bulky, and any mistakes during the installation process could have severe consequences, like a lack of security in your home, an increased risk of water getting in and causing damage, and an increased risk of pest infestation. It’s definitely possible to install an exterior door yourself, but it’s often a good idea to have a professional do it for you.

The lock block will either be built-in on the side of the door or run from the top to the bottom. Usually, there is a marking that indicates its location. You can also tap the door with the back of a screwdriver to find the lock block like you would find a stud in a wall.