Next add glue to the end of 1 of your longer pieces of wood and attach a shorter piece to it.
Door frame and door installation.
The size of the door opening will vary depending on the size of the door you plan to install.
A typical door opening is 2 inches 5 1 cm wider than the door size being installed to allow for the thickness of the jamb material and shims to plumb the jamb.
Then use a nail gun to secure the 2 pieces together before attaching the other side of the jamb in the same way.
To install a door jamb start by measuring the door frame and cutting the wood to size.
Slip shims under the side jamb until the head jamb is level.
They come in many different sizes and types of wood and follow the same basic installation instructions regardless of which.
Measure both the door and rough opening to make sure the door is the right size.
Door and frame combinations can be found in any home improvement store.
Measure your door carefully and cut the opening to fit using a reciprocating saw.
Installing an exterior door that is insulated and made of steel can be heavy and cumbersome due to the weight of the materials.
The door frame should be slightly smaller than the opening it fits to allow for adjustments.