How To Install A Prehung Exterior Door This Old House

Use drill driver to back out door hinge screws.

How to install a prehung exterior door this old house. Measure both the door and rough opening to make sure the door is the right size. Measure the old door. If you choose to install a front door made of steel you will need a helper. Remove the old door.

How to install an exterior door. Watch this video from this old house to learn how to install a prehung door. Prehung doors hang on a jamb that is split into two pieces. It s a good idea to measure the actual door too.

The door is attached to the main jamb which is installed first. These doors work great for newly constructed walls and for replacing doors in. Remove the interior trim and measure the width and height of the frame. The new door should be 1 2 inch less than the height of the rough opening and 3 4 inch less in width.

Buying a new prehung exterior door. Common jamb widths for stock doors are 4 9 16 in. The split jamb has a groove under the stop so it can slide over the edge of the main jamb. Installing an exterior door that is insulated and made of steel can be heavy and cumbersome due to the weight of the materials.

The key things to remember are setting the door level shimming the frame so the gaps between it and the door are even and taking steps to waterproof the installation. Next create a rough opening around your frame that s at least 1 inch wider and taller than the outside of the door system you re installing then insert the new door into the opening and place shims on the hinge side of the door making sure there s a gap of 1 8th inch between the edge of the door and the jamb. How to install a prehung interior door parts of a prehung. Typically both jambs are furnished with casings already attached.

And 6 9 16 in and they usually include two inch wide brick molding for exterior trim. Also measure the jamb depth.