
A standard 2-car garage is typically between 400 and 600 square feet. The most common size you'll find in modern American homes is a 20x20-foot garage, which provides 400 square feet of space. However, this is a tight fit for two larger vehicles like SUVs or trucks. A more comfortable and recommended size is 24x24 feet (576 sq ft), which allows for easier parking and some additional storage space.
The exact square footage depends heavily on the dimensions. Garages are not always perfectly square, and the depth can vary significantly. The primary factors are the width and the depth. Here’s a quick reference table for common 2-car garage dimensions and their square footage:
| Garage Dimensions (Width x Depth) | Total Square Footage |
|---|---|
| 18 ft x 20 ft | 360 sq ft |
| 20 ft x 20 ft | 400 sq ft |
| 22 ft x 22 ft | 484 sq ft |
| 24 ft x 24 ft | 576 sq ft |
| 26 ft x 26 ft | 676 sq ft |
| 20 ft x 24 ft | 480 sq ft |
| 22 ft x 24 ft | 528 sq ft |
When planning, remember that the square footage is measured from the interior wall to interior wall. If you're building new or renovating, consider going beyond the minimum. A depth of 24 or even 26 feet is becoming more standard to accommodate today's larger vehicles and provide room for workbenches, storage racks, or other belongings. The door width is another critical measurement; a double-door should be at least 16 feet wide for comfortable access.

From my experience, most 2-car garages built in the last 20 years are around 20 by 20 feet, so 400 square feet. It's okay for two midsize sedans, but it feels cramped with trucks. If you're buying a house, look for a 24x24. That extra 176 square feet makes a huge difference for getting in and out of the cars and having space for anything else, like bikes or a lawnmower.


