Installing A Prehung Exterior Door In New Construction

Measure the old door.

Installing a prehung exterior door in new construction. Begin installation by first running a thick bead of latex caulk along the subseal at the bottom of the old door opening. These doors and jambs must still be carefully adjusted to account for shortcomings in the wall frame. What is a prehung door. The new door should be 1 2 inch less than the height of the rough opening and 3 4 inch less in width.

Before removing the old door have the new one on hand. For instructions on interior doors read how to install a prehung interior door. Remove the old door. Buying a new prehung exterior door.

When you install a door you want it to swing smoothly latch tight seal out the weather and be secure. Common jamb widths for stock doors are 4 9 16 in. A prehung door is a unit that comes with hardware and a frame ready to be installed into a doorway. How to install an exterior door.

Then lift the new pre hung door into the center of the rough opening positioning the bottom seal first then tilting the door into place. Also measure the jamb depth. These doors work great for newly constructed walls and for replacing doors in. It s a therm tru door which is well insulated for weather protection and comes pre primed with pre cut holes for the door knobs.

Remove the interior trim and measure the width and height of the frame. The installation procedure for this door is basically the same as most other pre hung doors. 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. And 6 9 16 in and they usually include two inch wide brick molding for exterior trim.

Check for plumb and shim the frame as necessary. Most home centers stock prehung exterior doors in a limited number of styles. It s a good idea to measure the actual door too. You can get a big head start on reaching these goals by choosing the right set up to begin with and this usually means buying a pre hung door.