A 10×20 metal building kit gives you 200 square feet of covered space, about the size of a standard one-car garage. It fits a single car, truck, motorcycle, or small boat with room to walk around it, or a tidy workshop, or dry storage for mowers, bikes, and seasonal gear. At 20 feet long and 10 feet wide, it is one of the smallest enclosed footprints worth framing in steel, and one of the easiest to put up yourself.
This guide sits under the metal building sizes pillar. Below: what fits inside the 200 square feet, the jobs this footprint does well, the frame and options you will see on a quote, the height numbers that decide what rolls through the door, and an illustrative 2026 price range. If you are weighing a 10×20 against a smaller or larger shell, the nearby-size links will help you settle it.
The footprint
What fits in a 10×20 metal building
A 10×20 holds 200 square feet, enough for one vehicle plus a narrow margin to open a door and reach a shelf. Park a sedan, a mid-size pickup, a side-by-side, or a small trailered boat, and you have used most of the floor. Treat it as single-bay space: one big thing, or a lot of small things, but not both at once. If you need to walk a car and still run a bench, step up to a 12×24 or a 20×20.
Compared to a 10×10, the extra ten feet of length is what makes the 10×20 useful. A 10×10 is a shed for tools and a mower. The 10×20 swallows a full vehicle and still leaves a back wall for storage. It is the smallest steel footprint most buyers would call a real garage, which is why it shows up so often in the small metal building range.
| Spec | 10×20 metal building |
|---|---|
| Floor area | 200 sq ft |
| Footprint | 10 ft wide x 20 ft long |
| Vehicles | One car, truck, or small boat |
| Typical eave height | 8–10 ft ‹confirm› |
| Common roll-up door | 8 ft x 7 ft ‹confirm› |
| Typical frame | 14-gauge galvanized tube ‹confirm› |
Illustrative 10×20 specs. Confirm exact dimensions and ratings with your supplier.
Common uses
What people use a 10×20 for
The 200-square-foot footprint suits one job at a time. Pick the use first, then size the door and height to match it. The common ones:
- One-car garage. The headline use. Enclose a daily driver, a project car, or a classic you want out of the weather. See metal garage kits for the garage-specific build.
- Motorcycle, ATV, or side-by-side storage. Two or three machines fit with room to wrench, and the lockable steel shell keeps them dry and secure.
- Small workshop. A bench along one long wall, tools on the other, and floor space to work. Tight for a car and a shop together, but plenty for a hobby setup.
- Lawn, garden, and seasonal storage. Mowers, a tiller, a snowblower, ladders, and bins, all under one roof instead of crowding the house garage.
- Backyard office or studio. Insulated and wired, 200 square feet is a workable home office, art studio, or she-shed.
- Boat or trailer cover. A small boat on a trailer, a utility trailer, or a pair of jet skis park inside and stay out of the sun. For more on matching size to job, see how to choose a size.
Frame & options
The typical frame and options
At this size the frame is almost always tube steel, not heavy red iron. A 10-foot span is short, the loads are light, and galvanized square tube carries it without paying for steel you will not use. That is also what makes a 10×20 a realistic weekend build: the parts are light enough to handle without a crane.
Tube is sold by wall thickness, measured in gauge on the size-chart hub, where a lower number means thicker steel. You will see 14-gauge tube on lighter 10×20 covers and 12-gauge on stouter, fully enclosed garages. If you live in wind or snow country, the heavier gauge is worth the upgrade. Get the gauge in writing, because it is the spec that separates a carport-grade frame from a garage-grade one.
Past the frame, a 10×20 quote is a menu. The choices that move the price and the usefulness most:
- Doors. A roll-up garage door for vehicles, plus a walk-in door so you are not lifting the big door every time. Window count is up to you.
- Wall enclosure. Fully enclosed, partly open, or open carport-style. Enclosing all four sides costs more but turns the shell into a lockable garage.
- Insulation. Needed if you will heat the space as an office or a year-round shop. Skip it for cold storage.
- Roof style. A regular (rounded) roof is cheapest; an A-frame vertical roof sheds snow and water better and looks more like a house garage.
Anchoring is not optional
A light 10×20 is easy to raise, which makes it easy to under-anchor. Tie it down to the rated foundation for your wind zone, whether that is a concrete slab, a pier footing, or ground anchors on gravel. A frame this light will move in a storm if you skip it.
Clearance
Height and door clearance
Floor space gets the attention, but height is what decides whether your vehicle clears the door. Order the eave height around what has to fit, not by default. A few numbers to anchor on:
- Eave height. A 10×20 commonly comes with an 8 to 10 foot eave ‹confirm›. Eight feet handles a car or pickup; go taller if you want overhead storage or a lift.
- Door height. A standard 7-foot roll-up clears most cars and light trucks. A tall truck, a boat on a trailer, or a topper may want a 8-foot door ‹confirm›, which in turn wants a taller eave.
- Roof peak. An A-frame roof adds height at the center, useful for a small loft or hanging storage, while a round roof keeps the profile low.
The trap is ordering a short building, then discovering the boat or the lifted truck will not clear. Measure the tallest thing going inside, add a foot of margin, and size the door and eave to that before you sign.
Cost
What a 10×20 kit costs in 2026
As an illustrative 2026 range, a 10×20 steel shell kit lands roughly between $3,500 and $7,500 ‹confirm›, before concrete, delivery, and permits. An open carport-style cover sits at the low end; a fully enclosed, insulated garage with two doors and a vertical roof sits at the high end. The frame gauge, the wall enclosure, and the door package drive most of the spread.
Those are shell numbers, not turn-key. A concrete slab, site prep, and any wiring are separate, and they can rival the kit price on a finished garage. For how the dollars break down across sizes and options, see the metal building kit prices pillar, which covers the cost side in full.
Because a 10×20 is small and light, it is also one of the cheaper sizes to ship and to raise yourself, which keeps the all-in number down. If your budget or your plot has room, it is worth pricing a 20×20 in the same call, since the per-square-foot cost often drops as the building grows.
FAQ
10×20 metal building: common questions
How many cars fit in a 10×20 metal building?
One. A 10×20 is a single-bay, one-car footprint at 200 square feet. A sedan or a mid-size pickup fits with a margin to open the doors and reach a shelf, but two vehicles side by side need a wider building like a 20×20.
Is a 10×20 big enough for a workshop?
For a hobby workshop, yes. You can run a bench along one long wall and tools along the other with floor space to work. It is tight to keep a car parked and a shop running at the same time, so if you need both, step up a size.
What is the typical eave height on a 10×20?
Commonly 8 to 10 feet ‹confirm›. Eight feet clears a car or light truck through a standard door. Order a taller eave if you want overhead storage, a lift, or clearance for a boat or topped truck.
Can I assemble a 10×20 kit myself?
Often, yes. At this size the tube-steel parts are light enough to handle without a crane, which is why the 10×20 is a popular DIY size. Anchoring to a rated foundation is the part not to shortcut. See the small metal building guide for more.
How much does a 10×20 metal building cost?
As a 2026 illustrative range, roughly $3,500 to $7,500 ‹confirm› for the shell kit, before slab, delivery, and permits. An open cover is cheapest; a fully enclosed, insulated garage with two doors is at the top.
Do I need a permit for a 10×20?
Often, but it depends on your county and whether the building is on a permanent foundation. A 200-square-foot structure crosses the permit threshold in many areas. Check with your local building department before you order, since the answer also affects your foundation and tie-down requirements.
Should I get a 10×20 or a larger size?
Pick the 10×20 if you have one vehicle or one clear job and a tight plot or budget. If you might add a second vehicle, a bench, or storage later, the cost-per-square-foot usually favors going up to a 12×24 or 20×20 now rather than rebuilding.
Related guides
Keep reading
Comparing footprints or planning the rest of the build? Follow these next:
- Metal building sizes: the complete guide (the parent pillar).
- 10×10 metal building kits (the next size down, shed scale).
- 12×24 metal building kits (a longer single bay with room to work).
- 20×20 metal building kits (step up to a two-car footprint).
- Small metal building kits (the full small-size range).
- Metal building size chart (compare every footprint side by side).
