A 12×24 metal building kit encloses 288 square feet, a footprint 12 feet wide and 24 feet deep. That holds one vehicle with room to spare, a single-bay workshop, or a deep storage building for a mower, a motorcycle, and the gear that piles up around them. It is one of the smallest sizes that still works as a real garage rather than a shed.
This guide sits under the metal building sizes pillar, and it covers one footprint in depth: what fits inside a 12×24, the uses it suits, the frame and options you will see on a quote, the clear heights you can order, and an illustrative 2026 price range. For the full lineup of footprints side by side, the metal building size chart lays them out.
288 square feet
What a 12×24 metal building kit covers
Twelve feet wide by twenty-four feet deep gives you 288 square feet of enclosed floor. The shape matters as much as the number: 12 feet is a single-bay width, so you park or work in one lane, and the 24-foot depth is what makes the building useful. You get a vehicle plus a work zone behind it, instead of a tight box that only fits the car.
Picture a one-car garage that someone stretched. A standard car runs about 15 feet long, so a 12×24 leaves roughly 8 to 9 feet of clear depth behind it for a bench, shelving, or a second small machine. That reach is why this size beats a square shed for anyone who wants to store and tinker under one roof. Need two vehicles side by side and you have outgrown it; step up to a wider footprint like the 20×24.
What fits
What fits inside a 12×24 building
One vehicle, plus space to use the building. The table below shows how a 12×24 handles the loads people most often park in this size, and where it runs out of room so you are not guessing on the wrong footprint.
| What you want to store | How a 12×24 handles it |
|---|---|
| One car or pickup | Fits with walk-around room at the nose and along one side |
| Workshop | Vehicle in front, bench and shelving across the back wall |
| Lawn and garden | Riding mower, trimmers, and a small trailer under one roof |
| Motorcycles or ATVs | Three to four machines ‹confirm› with room to work between them |
| Boat or small camper | A length up to roughly 22 feet ‹confirm›, if the door height clears it |
| Two cars side by side | Does not fit; 12 feet is single-bay only, so go wider |
What clears and what does not. A 12×24 is a one-lane building with depth to spare.
Mind the door, not just the floor
A boat or a tall truck can fit the floor and still hit the door header. The roll-up opening sets your real clearance, so order the door height around the tallest thing you park. The how to choose a size guide walks through measuring before you buy.
Common uses
Common uses for a 12×24 footprint
The 288-square-foot footprint hits a sweet spot: bigger than a shed, smaller than a two-car garage, and priced to match. These are the jobs it does best:
- Single-car garage. A protected, lockable bay for the daily driver or a project car, with depth left over for tools.
- Home workshop or hobby shop. Woodworking, welding, or a maker space. For more layout ideas across sizes, see what people build.
- Lawn, garden, and equipment storage. Mower, tiller, and a small utility trailer in one dry, secure spot.
- Motorcycle, ATV, or UTV barn. Several machines off the weather with floor space to wrench on them.
- She-shed, studio, or man cave. Insulate and finish the interior and the depth gives you a real room, not a closet.
If you mainly want covered parking rather than a finished room, the same footprint works as an open or partly enclosed cover. Compare it against the next size up, the 24×24, and the smaller 10×20 before you commit, since a few feet either way changes what the building can do.
Frame and options
The frame, doors, and clear height
At this size the frame is usually light-gauge tube steel rather than heavy red iron, because a 12-foot span carries modest loads and tube keeps the kit light and affordable. Frames are sold by wall thickness in gauge, where a lower number means thicker steel; 14-gauge tube is the lighter option and 12-gauge is the stouter upgrade ‹confirm› for wind or snow country.
Clear height is where buyers most often under-order. The eave height, the wall height at the side, sets how tall a door you can hang and how much headroom you get inside. A 12×24 is commonly offered with side walls from about 7 to 12 feet ‹confirm›. Eight feet suits a car and a workbench; go taller if you want a lift, a tall truck, or loft storage overhead.
On the options list you choose a roof style, the doors, and any openings. A roll-up garage door, a walk-in door, and a window or two cover most builds. The roof comes as a standard, A-frame, or vertical-rib style, with the vertical roof shedding water and snow better for a small premium. Pick the certified load rating for your county so the kit is stamped for local snow and wind, not just the base spec.
Order the size you will grow into, not the one that just fits today. A foot of eave height or a second door costs far less now than a rebuild later.
Price
What a 12×24 metal building kit costs in 2026
As a 2026 illustration, a 12×24 steel shell kit runs roughly $4,000 to $9,000 ‹confirm› for the bare building. The spread is wide because gauge, eave height, roof style, door count, and the certified load rating each move the number. A light 14-gauge open cover sits near the bottom; a fully enclosed, certified 12-gauge garage with a roll-up door and a walk door sits near the top ‹confirm›.
That figure is the kit alone. Budget separately for a concrete slab, delivery, and any insulation or interior finish, which can add a few thousand dollars ‹confirm› on top of the shell. For the full breakdown of what drives the total, see the metal building kit prices pillar.
Treat any single number with care, since prices move with the steel market, your location, and the season. Get a written quote stamped for your address, confirm the gauge and load rating, and check it against current ranges in the size chart before you sign.
FAQ
12×24 metal building kits: common questions
How many square feet is a 12×24 building?
A 12×24 building is 288 square feet, found by multiplying 12 feet of width by 24 feet of depth. That is roughly the footprint of a deep one-car garage, which leaves room behind a parked vehicle for a workbench or storage.
Will a car fit in a 12×24 garage?
Yes. A 12×24 fits one standard car or pickup with walk-around room at the front and along one side, plus about 8 to 9 feet of depth left over ‹confirm› for tools or storage. It is single-bay width, so it will not hold two cars side by side.
How much does a 12×24 metal building cost?
As a 2026 illustration, the bare shell kit runs roughly $4,000 to $9,000 ‹confirm›, depending on gauge, eave height, doors, roof style, and the certified load rating. A slab, delivery, and insulation are extra. Always get a written quote stamped for your location.
How tall can a 12×24 building be?
Side wall, or eave, heights of about 7 to 12 feet ‹confirm› are common at this size. Eight feet suits a car and a bench; order taller if you want a lift, a tall truck, or overhead loft storage. The eave height sets how tall a door you can hang.
Is a 12×24 big enough for a workshop?
For a one-person shop, yes. The 24-foot depth gives you a bench and shelving along the back wall with floor space in front, whether you park a vehicle there or not. If you need two work zones or a vehicle plus a full shop, look at a wider footprint.
Can I add a second door or windows?
Yes. Most kits let you place a roll-up garage door, a walk-in door, and windows where you want them. Decide door positions and the roll-up height before you order, since the opening, not just the floor, sets what you can park inside.
What frame does a 12×24 kit use?
At this size the frame is usually light-gauge tube steel, sold by gauge thickness, rather than the heavy red iron used on wide-span buildings. A 12-gauge frame is the stouter choice for snow or wind country; 14-gauge is lighter and cheaper for mild climates.
Related guides
Keep reading
Comparing this footprint against its neighbors and the hubs that put it in context:
- Metal building sizes: the complete guide (the parent pillar).
- 10×20 metal building kits and 20×24 metal building kits (the sizes on either side).
- 24×24 metal building kits (a true two-car square if 12 feet is too narrow).
- Small metal building kits (the full small-footprint roundup).
- How to choose a metal building size (measure before you buy).
- Metal building size chart (every footprint and its uses in one table).
