Prepare your door clean the stop moulding with soapy water and allow it to dry completely.
Install door insulation strips.
Simply measure widths and heights of your door at the door stops and cut to those sizes using a tape measure and utility knife or scissors.
Cut and apply foam weatherstripping step 3.
Nails into the wood flange and position the weatherstripping so the entire length of the foam seals against the door.
Install weather stripping on doors foam tape is used a lot and is very efficient if installed carefully and replaced at first signs of deterioration.
Then measure the length of the sides of the frame.