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Garage Door Parts: A Basic List

Stuck Garage Door

If you'd like get to know some of the basics of how your garage door works you have come to the right place. There are many small garage door parts we could cover in this post, but instead of making a complete list we decided it would be more useful to create a list of the most important ones. After reading this you should have a pretty good understanding of how your garage door works which is a lot better than most people, so let's get started!

Garage Door Spring

Your garage door spring is located just above your door. It is one of the most important parts because your garage will not open without one. Springs typically have a useful life of 5-7 years depending on the type of spring and the weight of the door. When they break you will know because one, your garage won't open and two, the spring will be broken in half. You can have a one spring system or a two spring system. Two spring systems tend to last longer than one spring systems. If your spring is breaking down more quickly than 5-7 years, then you may need to do some routine lubrication. You also may want to have a professional make sure other parts of your door are not off, like alignment.


Rollers are the garage door parts located on the tracks on either side of the door that allow your door to roll up and down on the tracks. Revolutionary right?! Garage doors are even sometimes referred to as roll up garage doors. The main concern you as a homeowner should have about rollers is whether or not they are properly aligned. Misalignment is usually caused by them being loose do to a certain amount of use. When your rollers are misaligned, your door has to work harder than it should to work properly. Making sure your rollers are in good shape can help make your garage door last longer. You can tell if your rollers are loose by watching your door, or by listening for if your door is making any strange noises.


The drums are located at the top right and left of your garage door. The drums are attached to the same top bar that your spring is on. Cables are attached/wrapped around the drums. The drums, cables, and spring (along with your actual opener of course but we are just covering the door itself today) work together to lift up your garage door. The cable should be going straight down and it should be tight, like a guitar string, when your door is open. If it isn't tight, then your door could pop off the cable and then you'll have to call a professional.


Hinges are what keep your garage door together and they are what hold the rollers on the tracks. There are three different types of hinges (numbered 1, 2, and 3 on the packaging) for the rollers, because the track is actually closest to the door frame at the bottom and moves slightly away as it goes up. As your garage door opens and closes countless times, your hinges can sometimes break due to the weight put on them by the door. This is a pretty simple fix, but calling a professional will always provide the most assurance.

Well, that ends our basic list of all the garage door parts you need to know about. You should now be able to identify what could be going wrong with your garage most of the time. If you have any questions or need a repair, you can visit Grapevine Garage Door Repair or give us a call at (817) 398-0022!