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

  • Based on 531 reviews
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Availability: In Stock.
Fulfilled by DIY Garage Door Struts

Arrives Thursday, Oct 8
Order within 1 hour and 53 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: Thursday, Oct 8

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


  • 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

  • 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

  • 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

  • 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

  • It Did The Job.
Size: 9FT Garage Door
I just installed it on my bent door panel today. I was able to straighten the panel (after removal from the door) with clamps and 2 x 4s. I reduced this to only 4 stars because I think that the 3 piece design is not a rugged as a one piece would be. However, after forcing the panel straight and attaching the brace the door remained straight without any deformity. So it definitely accomplished what it was there to do. As the included instructions say, don't use the brace to try to straighten the panel. You have to get the panel straight first and then attach the reinforcement to keep it that way. As you can see from the level I'm using as a straight edge in the photo the panel is pretty straight at the end. ... show more
Reviewed in the United States on June 27, 2026 by W. Watson

  • This is the one to buy after your daughter backs the van into the garage door.
Size: 16FT-20FT Super Strut
So very easy to install. I had my doubts that a three piece strut would fix my damaged and sagging 18 ft wide garage door. It proved me wrong. Used only one strut across the center panel and it supports the entire door.
Reviewed in the United States on July 27, 2026 by Amy B

  • Good materials and 5 Star Doors did a great job to help make installation as easy as it could be.
Size: 16FT Garage Door
Product arrived intact via UPS which can be hit or miss. I was one screw short of the smaller ones had 11 out of 12 but I made it work. Instructions were clear but I would advise 5 Star Doors to print them a little darker. It's hard to see/read for people over 50. Looks like a copy of a copy of a copy. But those are minor issues and I wanted to give some feedback on how they could improve a couple things. The instructions recommend you measuring and attaching the center strut to the two side ones first. I found that centering and attaching the center strut to the garage door first allowed me to line up the side pieces in the door's predrilled holes. I did use a C-clamp to hold firm the side pieces when securing them to the center piece. So, attach the center piece with ONE screw at the top so it can pivot and then mount each side with one screw at the top of the end of the strut. You can then use the C-clamp or clamps to squeeze in and hold the left and right struts while you drill/mount the short screws. My garage door is probably 30-40 years old, so maybe the newer doors line up better, but I found that this was the easiest and straightest way to mount the struts. It fixed my issue and my door is so much quieter now. Also, I'd recommend having a helper. I did it solo but I'm experienced with metal fabrication so I knew how to plan/think ahead. I'm thinking of getting two more struts for the other panels, but they're not needed at this time. Great company and I would absolutely buy from 5 Star Doors again. ... show more
Reviewed in the United States on November 1, 2024 by KG

  • Reinforce or repair your damaged garage door
Size: 16FT Garage Door
My garage door is an 18' two car single door with 4 panels. The spring for it snapped one day and caused the door to fall and then sag in the middle where the pull bar attaches. This in turn caused the upper panel top to get bent and pulled out of square. I removed the upper bent support beam and replaced it with this after reshaping my panel back into mostly square and true. This reinforcement beam is definitely more sturdy and rigid than the stock beam that was on my garage door. It comes with self-tapping metal screws that will make their own hole for attaching but I would suggest drilling a smaller pilot hole before screwing them in just to help guide the screw and ease of screwing them in. I was able to take the bent, old support beam and cut in half, removing the damaged area and then used that as additional support at the bottoms of the previously damaged panels in the center. This has been installed for about 3 months now and I can see no evidence of warping, bending or getting damaged in any way. My garage is much quieter now without all of the popping and squealing that was taking place with the old bent and damaged support. So, if you need extra support for a heavy door or need to make repairs to a damaged door, I would definitely recommend this product. Also, I installed this all by myself but it would help tons to have an extra set of hands helping you out. ... show more
Reviewed in the United States on June 19, 2023 by ycore2k2

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