It is not the door frame that is out of level or out of plum its the house.
Patio door frame out of square.
Start on the top right side of the frame.
A 1 4 can create a significant gap in between the door and weather stripping allowing significant heat ac loss.
Other doors or windows would also be out of square so this solution would fix all the problems.
Most sliding doors manage to get knocked off kilter at one point or another.
Once the molding and screws are removed use a crowbar to slowly pry the frame from the wall.
Place your blocks of wood and or shims into the open space over the lintel and begin attaching the door frame to the original rough opening.
They may be installed as single or double doors depending on the size of your door opening but double door units are most prevalent.
The patio itself sloped away from the house for rain i guess but only figured that out a couple days in or when i put the windows in big sliders the one side was higher by.
Start at the bottom and work your way up.
Nail the rest of the frame up around the door but keep checking with the level to ensure it is equal all the way around.
Several patio door options are available.
Make sure the rollers at the top are aligned first then walk the bottom of the door.
Again double check each corner to be square before completely securing it into place.
Use a level to keep up with how even the frame is.
If the door frame is far too warped for correcting such as through large scale water damage you will have to replace it.
You may also want to check out our step by step guide to adjusting your sliding doors.
Step 7 secure door frame in opening.
Out of square doors door frames either do not close if really bad or seal properly.
Out of plumb doors either open or close from gravity which is simply annoying.
Now it may not be the cheapest way to go but it would be done properly.
Remove the door frame optional.
Frames just do go out of plum for no reason and on their own.
Keep checking with your level to see if it is even.
Is your door here the door coming out of the house onto a patio.
Choose the door that appeals to you depending on your situation and preference.
Complete the nail install on the lower left hand side of the sliding door frame.
I did a slider from the patio to the driveway and built as perfect a frame for it to fit into as i could.
This video shows how to fix them so that.
Hope your not a contractor.