What are the most common sizes of residential garage doors?

2. What are the most common parts that wear out on a garage door? Springs, rollers, and cables wear out first because they are the three essential parts that the garage door needs to function. Therefore, they get the most wear and tear. return to questions 3. When do I know these parts are worn out or need to be replaced? -The spring is the easiest. It will break into two pieces and the door will be unable to operate without spring tension. -When the cables start to fray, they are at risk of breaking and need to be replaced. -When the rollers become noisy they start sliding and not rolling, thus leaving gouged, black marks on the track. At this point they need to be replaced so they do not damage the garage door opener. return to questions 4. How often should my garage door be serviced and am I able to do it myself? The door should be lubricated every four months. This consists of lubricating the hinges, rollers, or any other moving parts on the door. Yes, you are able to do it ...