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9 FT Heavy-Duty Steel Garage Door Reinforcement Bracket - Made in the USA - Prevents Bending, Sagging & Cracking

  • Based on 526 reviews
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Availability: In Stock.
Fulfilled by DIY Garage Door Struts

Arrives Aug 20 – Aug 22
Order within 14 hours and 40 minutes
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Size: 9FT Garage Door


Features

  • [Reinforce & Protect Your Garage Door] Upgrade your garage door with this 9 FT Heavy-Duty Steel Reinforcement Bracket. Engineered to prevent bending, sagging, and cracking, it delivers unmatched strength and stability.
  • [Built to Endure Extreme Conditions] Made from ultra-durable 22-gauge steel, these 3-piece garage door struts protect against hurricanes, heavy winds, and rain.
  • [Custom-Fit, Hassle-Free Installation] Easily adjustable hole placement fits any garage door. Includes a full set of self-tapping screws for a simple, secure installation.
  • [Smoother, Quieter Operation] Replace noisy, worn-out supports for a quieter, smoother door motion.
  • [Complete Kit, Ready to Install] Comes with (2) 3'-11" ft support beams, (1) connector, and all necessary screws. Protect your home with this all-in-one reinforcement solution.

Description

A popular YouTube Video, shows users how he fixed his insulated door that was buckling on the top two panels. There is a fatal flaw in how he installed the strut. He had good intentions, but his video has destroyed many garage Doors. The picture to the right with the vertical styles is what struts are attached to. However, not all insulated doors have vertical styles. Like our friend in the video. He secured his brace to only thin gauge steel. His door doesn’t have styles. If your not sure if your insulated door has vertical styles, tap a finish nail below the hinge through the skin. If it’s hollow, you will need to install the strut on the hinges. An easy way to tell if your garage door can handle the additional weight of one (13 pounds) or more struts is to weigh the door. You will need a bathroom scale to do this. Step 1. Unplug the garage door opener Step 2. Disengage the opener by pulling the red cord. Step 3. Lower the door onto the scale Fact: About 80% of residential wind damage starts with wind entry through the garage door. The majority of garage doors manufactured in the last two decades are engineered to withstand 40 mph winds. It is no surprise that we ship so many strut kits to California, Texas, and New York because these states and others have over 400 severe winds (40+ mph) events a year. Non-insulated garage doors that face the west are especially vulnerable. Taking a proactive approach and installing two-door struts on new doors will help keep your door looking and running like new. If you have a non-insulated door with torn or cracked panels and you are trying to get one more year out of your door, then an 8-foot piece of angle iron may be your best bet. Of course, it won’t solve the problem, but it will slow it down. Garage doors endure Flexural (Pushing In And Out On The Door), Torsional (Twisting) & Tension (Pulling). If you are considering using angle iron or any other brace other than a strut, it won’t stop the torsion forced on the door, and therefore you will eventually get cracks in the panel. We know this from most of our customers who have tried angle iron or similar only to find out it did more harm than good. Plus, consider this, when you eventually get a new door, the strut is transferable whereas, the angle iron is not. If you have a garage door opener on your door. The door should have a strut across the top panel. Even with a DC opener there is torque transferred to the top panel. Struts will help a bent door by offering the affected panel support. However, once a panel is compromised, it will never look perfect again. The goal is to make it look presentable from street view and to keep it from buckling with other door panels when the door cycles. Before installing the strut:

Manufacturer: ‎Five Star Doors


Part Number: ‎Garage Door Reinforcement


Product Dimensions: ‎48 x 3 x 3 inches


Item model number: ‎Five Star Doors


Size: ‎9FT Garage Door


Color: ‎Galvanized Steel


Material: ‎Heat-Treated


Installation Method: ‎Screw-In


Handle Material: ‎Metal


Usage: ‎Commercial/Residential


Included Components: ‎‎(2) 3′-11″ x 2-1/4″ 22 Gauge Galvanized Steel Struts, (1) 48″ Hot-dipped Strut Connector, (12) #8 1/2 in. External Hex Flange 7/16″ Hex-Head Self-Drilling Screws, (6) 1″ External Hex Flange 7/16″ Hex-Head Self-Drilling TEK SCREWS, Assembly instructions and helpful hints included.


Date First Available: April 23, 2021


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Aug 20 – Aug 22

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Solved the problem on my 18ft garage door
Size: 18FT Garage Door
Ordered this for my non-insulated 18ft garage door. The very top panel was sagging so when the door closed it made a loud bang as the top panel rounded the corner. There were not any visible cracks anywhere on the door, just 25+ years of use I suppose. The self-tapping screws worked great. Like with most projects, "measure twice and cut once", although no cutting is required. I was able to install all the screws with a standard screw gun and 7/16" driver bit. I just performed the final tightening with a standard ratchet and socket to avoid stripping out the screws. I pre-assembled the bracket on the floor for ease of installation. There is a youtube video out there as well. It worked great and solved my problem. ... show more
Reviewed in the United States on July 24, 2026 by Mike H

  • Garage Door Support
Size: 16FT Garage Door
Quality product that fixed a garage door panel that started bending inwards when opening. Easily installed and all materials appears to be high quality. Instructions that were included were useless and didnt even have words, just vague pictures. YouTube videos are your friend with this item. Took me only 15 minutes to install. This item made world peace closer to reality. ... show more
Reviewed in the United States on July 27, 2026 by R. Lieberum

  • Excellent strut kit for my garage door
Size: 16FT Garage Door
This support strut kit worked great to help give more life for my garage door of 23 years. It was easy to install after looking at a few YouTube videos. I suggest searching for this YT video before you start the installation process - @maqtinkers “Installing a 3 piece garage door strut kit” It will give you a visual of what to expect and what not to do based on the YouTuber’s comments he made on his video. And install the middle strut bracket onto the garage door first before adding each bracket end section. ... show more
Reviewed in the United States on April 20, 2026 by NYG

  • Fix your buckling garage door panel(s)!
Size: 16FT Garage Door
Sorry for the clickbait, this does not "fix" a buckling door panel, but it does reinforce a buckling door panel. Will add years of extended life performance. The reason for the 4-stars is there was substantial drilling that had to be done to make it fit, only 2 holes (the end holes, 1 on each end), and only 1 hole in the connecting bracket were able to be used. ALL (read-EVERY) other holes had to be drilled. Wasn't a real problem, but wasn't very convenient for the installation. Thank goodness I have a drill with drill bits and an impact or this would have been most challenging. But of course, only a DIY person would buy this and likely has the needed tools on hand. Definitely recommend. Seems pricey until it is installed and working, and then it is an absolute bargain. All in, it took me about 1.5 hours from start to end and I wasn't rushing. As an FYI...The reason for my door panel buckling was due to one of the support braces becoming detached, allowing the door to flex. Even after bolting the brace to the door, the buckling, though not as drastic, remained. Get this, make sure you have a cordless drill and impact (the impact is an absolute must to install correctly) and some small drill bits suited for drilling steel. No measuring. Easy to eyeball everything. Good luck! ... show more
Reviewed in the United States on November 17, 2023 by M. Connelly

  • Great for stabilizing weak or saggy doors.
Size: 16FT Garage Door
Holy cow. This was a real money saver for me to not to have to replace the whole panel. Gets rid of the sag and that awful screech as it closes. Direction were very easy to follow. I did watch a video on it as well. Just make sure you have a nut driver for your drill. Wish I knew about this sooner. Very good value for the money. Very stable now even in high winds. ... show more
Reviewed in the United States on November 11, 2025 by Jeff S.

  • Less than an hour's work and you're good to go...even when done solo.
Size: 16FT Garage Door
I'm 5'5 and do a little DIY from time with my power tools from time to time and installed this kit on my old 16' door by myself pretty easily. As others have said, the prep work of lining up the two 7' pieces to overlap the 3' piece evenly whilst making sure they stretch to the edges of your door is what takes the most time. I used a cordless regular and impact drills and to get the job. Fast shipping and works like it should. ... show more
Reviewed in the United States on April 16, 2026 by kimmpossible

  • These Work!
Size: 16FT Garage Door
I bought these door brackets but my door was sagging so bad I didn't think they would work. My garage door is a 16' door and it was sagging so bad I thought the door was going to slide off the roller axles. I was having to push up on the door to get it to roll down. I put these on and could tell the door was more rigid. I can open and close the door with one hand again. The door had gotten so hard to close that it broke my opener. I wish I had taken some before and after pictures to show the massive improvement these supports made. Installation was pretty simple. My door is insulated so I had to make sure I was on the structural door supports. Great product, and it was such a relief to have these installed and my door working again. ... show more
Reviewed in the United States on March 20, 2025 by You Decide

  • Sturdy, easy install
Size: 16FT-20FT Super Strut
Sturdy and well made. Pieces fit together very snug. Plenty of screws to give it extra support. Three piece design gives a lot of strength in the center of the door. Fixed my sagging door. Easy afternoon project.
Reviewed in the United States on January 7, 2026 by Brock Matthews

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