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Question DetailsAsked on 6/14/2011

Garage door repair

I have a issue that has developed with my garage door.  The  board or boards that go across the top of the garage door opening have a bent inward (bowed) where the middle now is an arc of almost 2 inches out of a straight line.  I checked it with a chalk line.  The garage door now binds as it comes to a close.  I don’t know what would be the best solution to fix the problem.  The simplest repair seems to be to cut a 2x4 to compensate for the arc and install at the top inside the garage and add strips on each side of the door and shift the door rails back so the opening is square again.  I have contemplated this issue for a few months now and would appreciate any help.  Maybe you could suggest what type of contractor would be the most appropriate to call for a repair estimate.

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2 Answers


This is a common problem,
based on the info you provided there are two thing you need to do to repair, and prevent this from happening in the future.
1. I did not see a size of the door in your post but I am guesssing it is a single car garage door 8' or 9' wide by 7' tall.
If this is the case then it is highly probable that you are missing a brace that is called a "Strut" this Strut is Two to Three inches tall and should reach from end to end across the top of the panel.
The strut is designed to prevent exactally what happened to your door.
It is standard practice for installation companies on new construction to omit the part because the door rarely comes with a garage door opener installed, unfortunatly because of this practice going on for so long it has become standard for many companies.
This Strut should always be installed especially if you are attaching anything that is going to push and pull at the center the panel for years to come.
You can call any local Garage door company to buy the strut or pay one to supply and install it for you.
2. This next step is the most over looked.
The "Balance" of the Garage door is the key to everything working effectivly and will keep fatiuge to the Door and Operator to a minimum periodic lubrication is also required and will keep noise and friction down as well. A balanced Garage Door is one that requires you to be able to completely open and close it mannualy with little effort and no signs of binding or having to force the door to movethen close the door approxamatly half way and let go of it, If the door holds its' position at the half way point the the door is considered "Balanced".
You should perform this check this at least once a year.
If the door closed on its' own after letting go then Maitenance of the garage Door should be done by a professional, this should include adjusting the Springs, Track, lubrication, tighten and replace any missing fasteners, and adjusting the safty features on the Opener to pass code.
I do not recommend adding excessive weight by trying to repair it with wood or other products not designed for the job these repairs have failed for many people in the past and has cost them more in repairs than if it had been repaired correctly the first time.
If you have any questions please feel free to call we will be glad to help.

Answered 9 years ago by Garage Door Guru


Noticed this old post while looking for reference questions for another response.

The response given related to warped door panels, and putting in metal struts (stiffeners) to hold the door panels straight - they also help resist wind loading on the door. If the header beam is warped noticeably out of plane (bent sideways) then that would be a structural concern - could be indicative of water damage to the beam, or that it is inadequately designed so is buckling laterally, though usually the floor joists would stop that if they were fastened down to or into it.

If that is the case, certainly with a 2 " bow, a Structural Engineer would be the person to investigate it - which will likely require a bit of drywall removal to see what is going on.

Answered 5 years ago by LCD

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