Measure across the top of trim on the outside of the door from the outside corners of both pieces of vertical trim that you just nailed on.
How to cut garage door trim.
Step 1 remove old trim.
Use an angle gauge to.
Then measure the length of the moulding from the inside point of the miter you just cut to the desired length.
How to install trim around a garage door opening.
Make a mark before you cut another 45 degree miter with the power miter.
Step 3 position the weather stripping and trim above the garage.
Nail the head moulding piece to the door jamb with trim nails.
Learn how to install our vinyl thermostop garage door trim.
Set the power miter to a 45 degree angle.
If you currently have trim around your garage door you will need to remove it before installing the new trim.
Cut the first miter on the head moulding piece.
Measure the inside dimensions of the garage door jamb horizontally across the top and vertically along both sides.
Step 2 cut your trim to size.