Keep in mind that if the door has 2x4 walls then the frame will be 4 1 2 11 4 cm.
Fitting a door frame kit.
Watch our step by step video showing how to fit an internal door frame with expert advice and top tips to help you complete the job with confidence.
Note the measurement and save it for later.
Measure the width of the door frame.
You ll need to know how wide your door frame is so the jamb fits in it.
Fix this piece of timber between the jambs at the bottom of the frame.
Step by step instructions firstly measure the dimensions of the existing door frame then cut away the architrave plinth blocks and jambs to reveal the opening.
If you buy the right interior door frame kit and take your time when measuring and installing it then replacing the door itself should be a breeze.
Fitting a new external door frame as mentioned in other pages it will often be necessary to fit a new door frame as well as a new door.
This will keep the frame sturdy while you fit it in the opening.
Installing the door frame that i made from the parts in the previous video.
After the frame is set i usually like to hang the door to check the fit and twea.
Break out the tape measure.