The replacement springs in my case proved to be 0.2253 wire size, 2.0 inch (inside) diameter, and 24 inches long, in a pair of one left- and one right-hand winding. Actually, the old springs in these pictures were a slightly smaller size, but another similar door on this garage was better balanced by that size. Whoever installed the old springs didn't quite get the weight and size just right; it is not unusual to find a repair service installing a slightly off-balance spring size that happened to already be on the truck during the service call. My electric opener had no trouble handling the small imbalance. But since it is safer to reduce the electric operating force as much as possible through careful balancing, I chose the size that was working better on the other door. The Chamberlain brand electric openers (also sold by Sears) I have incorporate a plastic worm gear that tends to wear out after some years of use, requiring a disassembly and installation of a $20 repair kit; this wear is minimized by a properly balanced door.

Garage doors can cost $200 for a single door and up to $4,000 for two doors or more. Keep in mind that better materials will cost more. This price also includes purchase of new tracks, adhesives, connectors and fasteners. You could install the door yourself but the weight of some garage doors are extremely heavy, so make sure you have help if you are trying DIY garage door replacement. Contact a professional or do research online to find out the average weight of different types of garage doors.
Lift cable placement: On the standard residential door mechanism, the loops at the lower ends of the two lift cables loop over the two bottom roller shafts which project from the bottom bracket on the door. The upper cable ends fasten to the drums using one of the methods described above. The drums are positioned along the torsion shaft such that the inner edge of each drum is approximately over the edge of the door. The cable winds onto the drum from outside in, so at the top of travel the cable is winding onto the inner edge of the drum, vertical from the edge of the door where it is looped over the roller shaft. As the door is lowered, the cable winds out to the outer edge of the drum, and thus is a bit out from the vertical, but the cable still falls in the gap between the guide rails and door edge. My cables rub and slap on the rails a bit, but after 30 years and many 10,000s of cycles, they don't seem to have worn at all.
However, in addition to potentially causing injuries to the under-prepared DIYer, a malfunctioning door can become a safety hazard to you and your family. Keep in mind, according to the National Electronic Injury Surveillance System (NEISS), over 13000 people checked into hospitals with garage related injuries in the United States in 2007. You don’t want to turn a loved one into a statistic just to save a few dollars!
An intermediate stage of the garage door opener market eliminated the DIP switches and used remotes preprogrammed to one out of roughly 3.5 billion unique codes. The receiver would maintain a security list of remotes to which it would respond; the user could easily add the unique remote's code to the list by pressing a button on the garage door opener while activating the remote control. The large number of codes made the brute force try-all-possible-digital-codes attacks infeasible, but the systems were still vulnerable to code grabbers. For user convenience, these systems were also backward compatible with the older DIP switch remote codes, but adding an old technology remote to the security list made the garage door opener vulnerable to a brute force attack to find the DIP switch code. The larger code space approach was an improvement over the fixed DIP switch codes, but was still vulnerable to the replay attack.

The "liability" angle: The flip side of "safety issue" is "liability". This is not used to directly sell you something; it is used to demean the cheaper alternative and prod you into buying a more expensive (and profitable) option. For example, you may be pressured into buying a whole new door, when you just need a new spring, by the salesman telling you he can't just replace the spring due to "liability" issues. Since product liability is a big burden on the garage door industry, and so many old doors (and especially automatic openers) are dangerous, this may be a genuine reason to accept a higher price.
Spring rate, torque, and lift: The spring rate K for these measurements is π*28.5*10^6 * (0.273)^4 / (32 * 140 * 1.72) = 64.5 IPPT. Applying 7.5 turns on this rate will yield a torque of 7.5 * 64.5 = 484 in-lb, which on the 4-inch drums (2-inch radius) yields a lift of (484 in*lbs)/(2 in) = 242 lbs. Again we find good agreement with the approximate door weight of 238 lbs.
They sent Doug Fussell out to my house on the day after Christmas! I had only called them three days before! Doug was a premier technician, very thorough and very efficient. I expected him to take two days, since he was replacing two doors and adding openers on each door. He only took the daylight hours of one day! I could not believe how fast he was! In addition, he thoroughly taught me how to use the remote openers. I highly recommend them to anyone!
If your garage door's spring breaks, stops working properly, or snaps, you'll lose the ability to open and close your garage door. This could happen due to a variety of issues, like normal wear and tear or from extreme temperature changes in a short amount of time. Spring replacements require a quick response from a garage door provider near you. Contact The Home Depot and a local, background-checked technician will respond within 24 hours.
We like to make sure that we have install the best garage door opener for every application. That’s why we install more than one brand of opener. We carry Liftmaster, Linear and Genie garage door openers. Call us today for fast service or installation. We have professional models on our shelves ready to install, and we stock the hard to find parts needed to make quick repairs. Click the link below to see our special offers on opener installations.
Go for the look of wood with less upkeep with low-maintenance faux wood composite & steel garage doors from our Canyon Ridge® & Coachman® Collections. Our Gallery, and Classic Collection garage doors are also available with Ultra-Grain®, a wood look durable paint. If you’re looking for a more traditional look, our Classic™ Collection of steel raised panel and flush panel garage doors complement most home styles. Add one of our many decorative window options to customize the door's appearance and let natural light into your garage.
If you are a own a home or a business and you have to make repairs to existing doors or complete a replacement you may not need to apply for permits for these small jobs.  I have provided a link here to the Mecklenburg County permit office. You can use this site to conduct research and to decide if you should apply for a permit for your next project.
Establish an alternate entry to your garage or update an existing one with our selection of garage entry doors. With an entry door, you will lose less heat or air when you enter your garage to work. Our variety of garage and outdoor organization materials will help you keep all the items in your garage neatly and efficiently organized while our floor coatings and utility flooring will help ensure your cement garage floors last longer than if they were left untreated.
Versatile. That’s one way to describe our products. A total, one-stop solution that meets your every upward-acting-door need. Featuring premium materials, superior craftsmanship and innovative functions, our products continue to lead the industry, underscoring a legacy of quality, expertise and integrity.  This history ensures that you are making a good investment in your home with a quality product. In fact, according to the latest  Cost vs. Value Report by Remodeling Magazine, replacing a basic garage door with an upgraded one returned up to 85%​ on original cost on average – making it one of the top renovations in the study.
Plus, we carry all the best and high quality products from the top garage door brands. Whatever is your requirement or need for your garage door, we are sure to have them in our comprehensive inventory. We have garage doors in different styles, materials, colors, designs and what-have-you. If you still cannot find what you are looking for, we can always source them out for you.
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