Cut one stud to the width of the.
Build exterior door jamb sill.
If you re not using premade jamb material or if your walls are a nonstandard thickness you can buy 5 or 6 inch wide lumber and rip cut it to the width of the wall using a table saw.
The horizontal component found just above the door with two grooves the door jambs are built to fit into.
Use a helper to hold them in.
When building a door jamb to fit a standard wall with a two by four frame and 1 2 inch drywall on each side the width of the jamb board typically is 4 9 16 inches.
Use the carpenter s square and level to ensure 90 degree angles as you insert small wood shims into the sides and top of the door frame.
Measure from the floor or base of the frame to.
It fits tightly between wall studs and under the jambs and casing so it has to be cut before it can be removed.
How to build install an exterior door jamb step 1.
Set them upright on each side of the door opening.
Cut two studs to the height that you measured using the electric saw.
Measure the height and width of the door using the tape measure.
Check and adjust the shims as needed.
Most exterior thresholds also have a sill beneath them.
Some of the other components involved here include.
Here s what to do.
Gregg hoyer walks you through the sill options available to you when building an exterior door unit and the pros and cons of each.
If the threshold is rotted the sill probably is too.
Another horizontal piece that s found on the floor below the door also sometimes called the door threshold.
Measure the right side of the door frame with your tape measure.
The sill is beveled on one side to drain water away from the house.
These hold the door jamb in place keeping the sides vertical and top perpendicular.
Place the two side doorjamb boards into the frame one on each side of the frame.
Insert the vertical sides and top of the exterior door jamb into the door frame.