Cut the head jamb to length so it equals the door width plus the thickness of both side jambs plus about 1 8 inch for door clearance between the side jambs.
Building an exterior door frame.
Place the two side doorjamb boards into the frame one on each side of the frame.
Use a helper to hold them in.
Cut one stud to the width of the.
Start by laying the top and bottom plates side by side and measure starting from one end.
If your rough opening measures 82 1 2 inches tall cut the side jambs to length at about 81 inches depending on how much clearance you want below the door.
Build the frame with the lumber laying on edge on the floor next to where it will be erected.
Here s what to do.
Then mark the location for the door opening.
Once you ve determined the location for a new entry door check for obstacles in the wall.
On top of it exterior door shell made of wooden boards is attached.
Make the opening the width of the door plus 2 inches 5 1 cm and if additional studs are needed a space for these as.
Mark both plates simultaneously every 16 inches along their length for the studs.
Measure the right side of the door frame with your tape measure.
Cut two studs to the height that you measured using the electric saw.
How to do it determine door location.
Measure the height and width of the door using the tape measure.
Pry away the studs and pull.
Set them upright on each side of the door opening.
Measure from the floor or base of the frame to.
Use a level to draw.
How to build install an exterior door jamb step 1.
Since the door opening must be bigger than the door in.
It can be made double with thermal insulation in between the two layers just as in the wall framework.