Consider Going Pro
Skip the hassle of needing to accurately measure your patio door and frame.
You don’t have to worry about accidentally voiding your warranty.
A pro will clean up the mess and dispose of your old patio door.
If you go DIY, here’s how to measure your patio door.
Measure distance between the side door jambs at three points: the top, middle and bottom of the patio door opening.
Next, measure the distance between the top of the head jamb to the top of the bottom sill at three points: far left, center, and far right.
Measure the width of the jamb, from edge to edge, across the existing door frame. Ignore any door trim.