There are standard garage door sizes available in the market. The most common garage door sizes are:
Single garage doors: The standard width of a single garage door is 8 feet, and the height is 7 feet or 8 feet.
Double garage doors: The standard width of a double garage door is 16 feet, and the height is 7 feet or 8 feet.
It is important to note that garage door sizes may vary depending on the manufacturer, and custom sizes are also available. It is essential to measure the opening of the garage door before purchasing a new one to ensure a proper fit. Professional garage door installers can also provide guidance and assistance in determining the appropriate size for your garage door.
China WDMA has a complete guide on STANDARD GARAGE DOOR SIZES.