A standard 2-car garage door is most commonly 16 feet wide by 7 feet tall. However, this is not a universal rule, and the actual size you need depends heavily on the garage's construction, the vehicles you own, and personal preference. The key is to measure the rough opening of your garage, not just assume a standard size will fit.
The 16x7 foot door is designed to accommodate two average-sized sedans or crossover SUVs. The 7-foot height is generally sufficient for most vehicles, but if you own a full-size truck or SUV with a roof rack, you might want to consider an 8-foot tall door for extra clearance.
Here are some common 2-car garage door sizes found in the U.S.:
| Door Width (Feet) | Door Height (Feet) | Common Use Case |
|---|
| 16 | 7 | Standard for two midsize vehicles |
| 9 | 7 | Single car garage door (for reference) |
| 16 | 8 | Better clearance for trucks/SUVs |
| 18 | 7 | "Oversized" for easier access with two larger vehicles |
| 18 | 8 | Maximum clearance for tall trucks and vans |
Before purchasing a new door, the most critical step is to get accurate measurements. You need the rough opening width and height (the framed space where the door will be installed) and the side room (space from the opening to the side walls) for the track system. Don't just measure the old door, as the opening might allow for a different size. If you're building a new garage, an 18x7 or 18x8 door is a popular modern choice for its more comfortable clearance, especially with the growing size of today's trucks and SUVs.
