How to Frame in Windows & Doors

Framing doors and windows requires basic changes to standard walls. The idea is to create a frame which will not weaken the structural strength of the wall or building. Installation can be done by about anyone with simple carpentry skills and basic tools.

Supplies

• 2 x 4 framing lumber


• Saw 


• Hammer


• Framing nails  


• Pry bar  


• Tape measure


• Level    

1. Begin by measuring the width of your door or window. Mark the top and bottom plates of your wall frame by this measurement.


2. Measure the height and mark on the wall stud where the door or window is to be installed. For windows, this measurement should be from the bottom plate, while for a door it should be below it. 


3. If existing studs are to be removed, make any necessary marks to indicate where new studs should be installed. Mark their position.


4. Cut two standard sized  2 x 4s known as "king studs" and stand them on the marks from step three. These will secure your door or window opening.


5. Check their placement with your level. Nail them to the top and bottom palates with hammer and nails.


6. Mark the location on top where the header will be. The header height and door width will be based on requirements of your local building codes. For windows, you will not only need to mark the top opening but also the bottom.


7. Saw out the existing studs in the space where the door or window is to be installed.


8. Saw and i an additional set of "trimmer" studs inside of the king studs within the opening.


9. Build the header and place it on top of the trimmer studs. Nail it in place. Now construct the bottom plate and place it at the bottom of the rough opening. Nail it in place.


10. For windows, cut two 2 x 4s the width of the opening to create a sill. Nail them to the existing king studs.