A standard one-car garage is typically between 162 and 196 square feet, based on common dimensions of 12x18 feet or 14x14 feet. However, the actual size can vary significantly based on the garage's design, age, and intended use beyond just parking.
The most common footprint for a new, single-car garage is 12 feet wide by 20 feet deep, which provides 240 square feet. This size comfortably fits most modern sedans and small SUVs with enough room to walk around the vehicle and store some items. Older homes, especially those built before the 1990s, often have smaller garages, sometimes as compact as 10x20 feet (200 sq ft) or even 9x18 feet (162 sq ft), which can feel very tight with today's larger vehicles.
Here’s a quick comparison of common one-car garage dimensions and their square footage:
| Garage Dimensions (Width x Depth) | Total Square Footage | Common Characteristics |
|---|
| 10' x 20' | 200 sq ft | Often found in older homes; tight for larger vehicles. |
| 12' x 18' | 216 sq ft | A common mid-size option. |
| 12' x 20' | 240 sq ft | Modern standard, good for a car and limited storage. |
| 14' x 20' | 280 sq ft | More comfortable for a full-size truck or SUV. |
| 16' x 20' | 320 sq ft | Approaching a "oversized" one-car garage, ample storage space. |
When measuring, remember these dimensions refer to the interior space. The footprint of the structure itself will be larger due to the thickness of the walls. If you're planning a new garage or evaluating an existing one for a specific project, always take precise interior measurements. The depth is particularly important for ensuring your car's trunk or hatchback can fully open without hitting the back wall.
