
A single-car garage is typically between 162 and 196 square feet. The most common dimensions are 12 feet wide by 20 feet long (240 sq ft), but the actual usable floor space is often less due to wall thickness and obstructions. For a comfortable fit with space to walk around the vehicle, a 14'x20' (280 sq ft) or 14'x22' (308 sq ft) garage is a much more practical choice, especially with modern cars being wider.
The size you need depends heavily on your vehicle and how you plan to use the space. A compact car will fit in a smaller garage, but a full-size pickup truck or SUV requires more room. Beyond just parking, consider if you need space for storage, a workbench, or other activities. Local building codes may also dictate minimum sizes.
Here’s a quick reference table for common single-car garage dimensions and their square footage, including recommended sizes for different vehicle types:
| Garage Dimensions (Width x Depth) | Total Square Footage | Best For / Notes |
|---|---|---|
| 10' x 20' | 200 sq ft | Absolute minimum for a very small car; very tight fit. |
| 12' x 20' | 240 sq ft | Common standard, but tight for most modern midsize sedans. |
| 14' x 20' | 280 sq ft | Recommended minimum for comfortable use with a typical car. |
| 16' x 20' | 320 sq ft | Good for an SUV or truck, with extra storage space on the sides. |
| 12' x 24' | 288 sq ft | Extra depth is useful for a workbench or deeper storage. |
| 14' x 22' | 308 sq ft | An ideal balance of width and depth for most homeowners. |
| 16' x 24' | 384 sq ft | A spacious single-car garage that can double as a workshop. |
When planning, always measure your vehicle's width and length and add at least 3-4 feet in width and 4-5 feet in depth to have adequate room to open doors and move around.

From my experience, that 12x20 size you often hear about feels really cramped once you actually park inside. You're squeezing out of the car. I'd say go for at least 14 feet wide. That extra two feet makes all the difference for opening your door without dinging the wall. Depth is key too—20 feet is okay, but 22 or 24 gives you space for bins or a freezer in front of the car.

Think about what you're parking. A Honda Civic has a much smaller footprint than a Ford F-150. The garage isn't just a box for the car; it's also your storage area. You need to account for the space the vehicle takes up plus the space you need to use. Aim for a minimum of 14 feet by 22 feet. This provides a functional area for both the car and your activities, making the garage truly useful.

The building code in many areas sets a minimum, but that minimum is usually just for the car itself. If you're building new, don't just meet the code—exceed it. Your future self will thank you. A 16x24 footprint is a fantastic investment. It gives you a comfortable parking experience for almost any vehicle and leaves plenty of room for bikes, tools, or a small workspace, adding real value to your home.


