How to Fix a Bowing Garage Door on Unlevel Ground

Measure the width of your bowed garage door with your tape measure. Obtain a strut for the door that is exactly 1 inch shorter than the garage door's width. Additionally, depending on the kind of garage door you have, you need a certain number of strut clips. A wood door requires four strut clips, while a steel garage door requires two strut clips for every metal brace between the sections on the door.

Disconnect the remote garage door opener from the power outlet.

Find the red emergency release rope that hangs from the garage assembly overhead. Pull it down to disconnect the door arm from the opener.

Look to the top section of the garage door and find the top roller bracket. Remove the screws from the bottom of this bracket using a Phillips screwdriver.

Find the bolt securing the bracket you removed the screws from. Slide one end of the strut over and onto the threaded end of this bolt if you have a wooden door. If it is a steel door, simply line up the hole on the end of the strut with the mounting hole on the door's bracket.

Reinsert the retaining screw through the strut and the bracket using your Phillips screwdriver. Do this at both ends of the bracket.

Attach a strut clip to the lower flange on each end of the strut. Use self-drilling tap screws to secure the clip if you have a steel door, or drill wood screws to attach the strut to a wooden door.

Apply a strut clip to both the lower and upper flanges at the center of the strut. Use the same method used in Step 7.

Attach two additional strut clips to each of the door's metal braces in the same manner as before, if you have a steel door.

Plug the door opener's power cord back in and pull the release rope again to reconnect the door arm.