You don’t need a 60’×100′ commercial barn to run a hobby farm. A small metal barn gives you weatherproof storage, an animal shelter, and a workspace all in a footprint that fits a residential property.
So what counts as “small”? A mini barn or storage barn typically runs between 24’×24′ and 30’×40′, which is 576 to 1,200 square feet. Hobby farmers and homesteaders tend to gravitate toward this size range because it’s practical without being excessive.
In this article, we’ll get into size options, the most common ways people use these buildings, and how metal stacks up against wood, so you can figure out what fits your setup.
Size Ranges and Practical Layouts of Small Barns
Small barns differ from large commercial or traditional barn structures in three obvious ways: size, materials, and labor. A commercial build demands heavy framing, a long material list, and weeks of on-site work. A small metal barn skips most of that.
The size you land on also shapes how usable the space actually is; the same sq ft configured differently can work for animals, dedicated storage space, or a mixed-use setup. Here’s a look at common configurations and what each one fits:
| Common Small Barn Sizes and What They’re Best For | ||
|---|---|---|
| Size | Best for | Key features |
| 12’×20′ | Chicken coops, small livestock shelter, feed storage | Space-efficient floor plan, simple layout, and affordable entry point for a mini barn or storage barn. |
| 18’×25′ | One horse stall with hay storage | Enough room for a basic horse barn, with space to consider stall placement and airflow. |
| 20’×30′ | Workshop plus animal shelter | Zoned barn design separates storage space from work areas and can be a flexible storage building. |
| 24’×30′ | Two horse stalls plus a tack room | Fits small equestrian setups well. |
| 30’×40′ | Two horse stalls, hay storage, and workspace | Room for a full stall barn layout with feed storage and a center aisle. |
Best Uses for Small Metal Barns
Here are small barn ideas for your next build:
 Hobby farm animal shelter Chickens, goats, and miniature horses all need reliable protection from wind, rain, and temperature swings, and a metal barn handles that without the rot or pest issues you’d get with wood. Most setups pair the enclosed barn space with a paddock or run-in shed attached to one side, giving animals covered outdoor access without requiring a second structure. |  Hay and feed storage Moisture is the biggest threat to stored feed, and a metal barn addresses that directly with tight panel seams and good ventilation. Keep hay off the ground on pallets, make sure airflow moves through the space, and you’ll preserve feed quality through the season without the mold issues. |
 Small workshop or tool storage An open floor plan gives you flexibility here. Park equipment along one wall, set up a workbench on the other, and you’ve got a functional workspace without sacrificing storage space. |  Multi-use barn with lean-to Adding a lean-to to one side of your barn extends what the building can do without a major cost jump. The enclosed section handles storage or stalls, while the overhang gives you a covered outdoor workspace. |
Metal vs. Wooden Small Barns: What’s the Difference?
Wooden barns are what most people picture when they hear the word “barn,” with the classic red siding, the pitched roof, and the traditional barn style that’s been around for generations. But when you get into the practical side of owning and maintaining one, metal starts to look a lot more attractive. Here’s how the two compare:
| Metal Barn vs. Wooden Barn | ||
|---|---|---|
| Feature | Metal barn | Wooden barn |
| Durability | Resistant to rot, warping, and structural damage over time | Susceptible to rot, warping, and water damage without regular treatment |
| Pest resistance | Termites and rodents can’t compromise the structure | Wood barn framing is vulnerable to termite damage and rodent chewing |
| Maintenance | Minimal, as there is no repainting, re-staining, or replacing rotted boards needed | Requires frequent upkeep, including painting, sealing, and board replacement |
| Roofing | Metal roofing sheds water and debris efficiently, with a long lifespan | Traditional barn roofing needs periodic inspection and shingle replacement |
| Build time | Pre-engineered panels go up fast | Stick-built construction takes significantly longer |
| Lifespan | Decades with minimal intervention | Depends heavily on maintenance consistency |
| Barn-style options | Multiple roof styles and color options available | Highly customizable, but at a higher labor cost |
Design Features to Consider for a Small Barn
Small doesn’t mean limited. There are a lot of decisions that go into a barn design. Here’s what to think through:
- Roof style. Alan’s Factory Outlet offers three roofing options, each with practical trade-offs. The regular roof has rounded corners and works well in mild climates. The boxed eave roof gives you a cleaner, more finished look with horizontal panels. The vertical roof is the strongest option as rain, snow, and debris slide off instead of sitting on the surface.
- Layout and placement. One underrated advantage of a smaller footprint is flexibility on your property. A compact barn style fits in tighter spots, such as along a fence line, near a paddock, or tucked beside an existing structure, without dominating your land. That flexibility also carries into the floor plan itself, where a few smart decisions about door placement and interior zoning make the space significantly more functional.
- Doors and windows. Where your doors open matters more than most people expect. Think about how you’ll move animals, equipment, or hay bales in and out before you finalize placement. Windows add ventilation and natural light, both of which matter if you’re housing animals.
- Color. Metal barns aren’t the grey utilitarian boxes they used to be. Alan’s Factory Outlet offers a wide range of color options for the roof, sides, and trim, so the building can match your property.
Find the Right Small Metal Barn for Your Needs
Alan’s Factory Outlet’s online 3D builder lets you design your hobby farm barn from scratch. Choose your size, roof style, doors, windows, and colors, and see exactly what you’re getting before you buy. Free delivery and installation are included in the 21-state service area, so what you configure online is what shows up and goes up on your property.
FAQ
Looking into getting a small barn? Here are the answers to some common questions.
How much does a small barn cost?
Several factors affect what you’ll pay for a small barn: size, roof style, door and window count, color selections, and any add-ons like a lean-to.
With Alan’s Factory Outlet, delivery and installation are included, so the price you see isn’t missing a line item. If you’re weighing a DIY approach against a prefab metal barn, factor in your time, equipment rental, and the learning curve before assuming it’s the cheaper route.
Do I need a permit for a small barn?
It depends on where you live and how you’re using the structure. Most jurisdictions base permit requirements on square footage, and smaller storage buildings sometimes fall under a threshold that doesn’t require one.
If your small barn will house animals, connect to utilities, or sit on a foundation, permit requirements are more likely to apply. Check with your local zoning or building office before you order.
What size barn do I need for 2 horses?
The standard recommendation for a horse stall is 12’×12′, though larger breeds may be more comfortable in a larger size. For two horses, that means you need at least 24 feet of stall space before accounting for an aisle, feed storage, or a tack room. A 24’x36′ is a practical starting point for a two-horse stable.
What is another name for a small barn?
The most common alternatives are mini barn, storage barn, and storage shed; though, how those terms get used varies. A mini barn typically refers to a compact structure used for animals or mixed purposes. A storage barn leans more toward equipment and feed. A storage shed usually implies a smaller, simpler structure without the framing or height of a true barn.
How big is a 20×20 pole barn?
A 20×20 pole barn is 400 sq ft, which is roughly the size of a small two-car garage. That’s enough room for a small workshop, a few pieces of equipment, or a basic animal shelter, but it starts to feel tight if you’re trying to do multiple things at once.
