If you're shopping for a garage in Middle Tennessee, one of the first questions you'll ask is: "What size do I actually need?" It's a good question, because building too small means you'll outgrow it fast, and building too big can mean spending more than necessary.
Whether you're parking a single car, a couple of trucks, an RV, or setting up a workshop, this guide will help you figure out the right dimensions for your needs — and what to expect when you're ready to build in Waverly, TN and the surrounding area.
Standard Garage Sizes: What Fits Inside?
Garage sizes are typically described by how many cars they hold, but real-world use often goes beyond just parking. Here's a quick breakdown of common sizes and what actually fits:
| Garage Type | Typical Size | What Fits |
|---|---|---|
| 1-Car Garage | 12' × 20' to 14' × 24' | One vehicle, minimal storage |
| 2-Car Garage | 20' × 20' to 24' × 24' | Two cars or one truck + storage |
| 2.5-Car Garage | 24' × 30' | Two vehicles + workbench or gear |
| 3-Car Garage | 30' × 30' to 36' × 24' | Three vehicles or two + workshop space |
| RV Garage | 14' × 40' and up | RV, boat, or large equipment |
These are starting points. Your actual needs depend on what you're storing, whether you want room to move around the vehicles, and if you plan to add workbenches, shelving, or equipment.

1-Car Garage: Compact and Budget-Friendly
A single-car garage is a solid choice if you're protecting one vehicle and don't need a lot of extra room. A 12' × 20' will fit most cars, but if you drive a pickup or want space to open doors comfortably, consider bumping up to 14' × 24'.
Keep in mind: if you plan to store lawn equipment, tools, or seasonal gear, that smaller footprint fills up fast. A lot of folks in Middle Tennessee find they want at least a little elbow room, especially if the garage doubles as storage.
2-Car Garage: The Most Popular Choice
The 2-car garage is the workhorse. A 20' × 20' is the minimum for two compact cars parked side-by-side, but most people are happier with 22' × 22' or 24' × 24'. That extra width and depth lets you open doors without dinging the car next to you and gives you a little room for storage along the walls.
If you drive trucks or SUVs — common around Waverly and Humphreys County — don't skimp. A 24' × 24' gives you breathing room and flexibility down the road.
Get a free, no-pressure quote at pacbuildingpro.com or call (931) 296-2777.
RV Garages: Height and Length Matter
RV garages are a different animal. You're not just thinking about floor space — you need height clearance and enough length to park comfortably.
A typical travel trailer or smaller motorhome might fit in a 14' × 35' or 14' × 40' building, but measure your rig first. Don't forget to account for hitches, ladders, and any roof-mounted gear. For larger Class A motorhomes, you may need 14' or even 16' in height and 45' or more in length.
PAC Building Pro can build custom post-frame (pole barn) or stud-frame garages on your property to fit your exact RV dimensions, with the door height and width you need. These custom builds are constructed on-site and offered with financing or cash payment — not rent-to-own like our delivered prefab metal buildings.
What About Boats and Equipment?
The same sizing principles apply. Measure your boat on the trailer, add a few feet for clearance, and plan for door height if you have a tall center console or T-top. Farm equipment, UTVs, and tractors also benefit from the extra width and height that a custom-built shop provides.
Workshop and Hobby Garages
If you're setting up a woodworking shop, mechanic bay, or hobby space, think beyond parking. A 24' × 30' or 30' × 40' gives you room for benches, tool storage, and space to move materials around.
Many folks in Middle Tennessee use a 3-car footprint (like 30' × 30') and park two vehicles on one side, leaving the other bay open for projects. It's flexible and grows with you.
How to Decide What Size You Need
Here's a simple process to narrow it down:
- Measure your vehicles. Don't guess. Measure length, width, and height (including mirrors and roof racks).
- Add clearance. Plan for at least 2–3 feet around each vehicle so you can open doors and walk comfortably.
- Think about the future. Will you buy a bigger truck? Add a boat? Need a workbench? Build a little bigger now if you can.
- Consider your lot. Make sure the building fits your property with room for setbacks and access.
- Set a budget. Bigger costs more, but sometimes an extra few feet now saves you from needing a second building later.
Prefab vs. Custom-Built: What's the Difference?
At PAC Building Pro, we offer garages built two ways, and it's worth understanding the difference:
Delivered prefab metal garages: These are built off-site and delivered to your property ready to use. They're available with rent-to-own options (no credit check), cash purchase, and free delivery within 30 miles of Waverly, TN. Great for straightforward projects and faster timelines.
Custom-built garages (post-frame or stud-frame): These are constructed on your property to your exact specs. Post-frame (pole barn) construction uses embedded posts and is popular for larger shops and agricultural buildings. Stud-frame (stick-built) uses traditional 2x framing, similar to a house. Custom builds are available with financing or cash payment — these are not rent-to-own.
Your choice depends on your site, budget, and what you're storing. We'll walk you through both options when you call for a quote.
Frequently Asked Questions
What's the most common garage size in Middle Tennessee?
The 24' × 24' two-car garage is probably the most popular. It's big enough for two vehicles or one truck plus storage, and it fits most residential lots without feeling oversized.
Can I get a garage with no credit check?
Yes — our delivered prefab metal garages are available with rent-to-own and no credit check. Custom-built garages constructed on your property are offered with financing (which does involve a credit application) or cash payment.
How tall does my garage need to be for an RV?
Measure your RV at its tallest point (including roof AC units, antennas, or ladder racks) and add at least 1–2 feet of clearance. Most RV garages need 12' to 16' of interior height. PAC can build to the height you need.
Do you deliver garages outside of Waverly?
We offer free delivery within 30 miles of Waverly, TN for our prefab metal garages. Beyond that, delivery is available for a fee. Custom-built garages are constructed on-site wherever you are in Middle Tennessee, so delivery isn't a factor — we come to you and build it right there.
Ready to Build Your Garage?
Choosing the right size garage doesn't have to be complicated. Measure what you've got, think about how you'll use the space, and give yourself a little room to grow. Whether you need a simple 1-car garage, a spacious workshop, or a custom RV building, PAC Building Pro can help you figure out what fits your property and your budget.
We're a family-run building dealer right here in Waverly, TN, serving Middle Tennessee with both delivered prefab garages and custom-built structures. Get a free quote today at pacbuildingpro.com or give us a call at (931) 296-2777. We'll answer your questions, talk through your options, and help you get the garage that works for you.