30×30 Metal Building
900 sq ft 12 to 16 ft eave
A 30×30 metal building gives you 900 square feet of clear-span, column-free space, a square footprint that works hard as a two-car garage, a workshop, RV or equipment storage, or a small commercial bay. Universal Steel of America is a US manufacturer: we engineer, fabricate and ship pre-engineered steel buildings built to your local snow, wind and seismic code, not a DIY carport kit.
Every 30×30 we build ships from the closest of our plants in every region of the United States, so freight stays short and lead times stay tight. The bolt-together red-iron frame arrives ready to stand on your slab, and professional erection is available as an optional service if you would rather not raise it yourself.
- Dimensions
- 30 ft wide x 30 ft long
- Floor area
- 900 sq ft
- Clear span
- 30 ft column-free
- Typical eave height
- 12 to 16 ft
- Frame
- pre-engineered red-iron steel, bolt-together
- Panels
- 26-gauge steel roof and wall sheeting
- Loads
- engineered to local snow, wind and seismic code
- Finish warranty
- 25 to 40 year paint and coating warranty
- Delivery
- shipped from the closest plant to your site
- Erection
- optional professional service
Popular uses for a 30×30 Metal Building
Two-car or double garage
The 30x30 footprint parks two vehicles side by side with walking room around each, the most common reason buyers choose this size. A 30 ft clear span keeps the floor open with no center post in the way. Add a second roll-up door so each bay opens independently.
Metal garagesWorkshop or trade shop
900 column-free square feet is a practical home or contractor workshop, with room for benches, a lift and storage along the walls. The engineered steel frame carries hoists, shelving and a mezzanine without interior columns. We size eave height and openings around your equipment.
Shop buildingsRV, boat and vehicle storage
Specify a taller eave and a wide roll-up door and a 30x30 stores an RV, boat or work truck under cover. The 30 ft depth clears most travel trailers and class A coaches with space to move around them. Enclosing the building protects against sun, hail and weather year round.
RV and boat storage buildingsLight agricultural and equipment storage
On a farm or acreage a 30x30 shelters tractors, implements, feed or a small equipment shop. The clear-span interior takes wide machinery without posts to maneuver around. Steel resists rot, termites and fire, so it outlasts a comparable wood structure.
Agricultural steel buildingsSmall commercial or retail bay
At 900 sq ft a 30x30 works as a compact retail unit, office, or service bay for a small business such as auto detailing or landscaping. The frame is engineered to commercial code and accepts insulation, windows and climate control. Finish it out to suit customers or crew.
Commercial steel buildingsWhat fits in a 30×30 footprint
At 30 feet square the building parks two vehicles side by side with room to walk around each one, or one vehicle plus a full workshop bay. The 30 ft clear span means no interior posts, so the floor stays open for benches, lifts, shelving or a mezzanine. Raise the eave height and the same shell takes a tall roll-up door for an RV, boat or work truck.
Built as a shop, garage or light commercial space
A 900 sq ft steel shell suits a home workshop, a contractor or trade shop, auto detailing, landscaping equipment storage, or a compact retail or office bay. Because the frame is engineered steel rather than light-gauge tube, you can add insulation, windows, multiple doors and climate control without compromising the structure. We size the frame, panels and openings to how you plan to use the space.
Living quarters and barndominiums
If you are weighing a 30×30 with living quarters, a square 900 sq ft footprint is on the small side once you allow for a shop bay. Most barndominium layouts work better at 30×40 and larger. We can point you to our barndominium buildings if a combined living and work space is the goal.
30×30 Metal Building questions
How much does it cost to build a 30x30 metal building?
Industry-typical estimates put a fully installed 30x30 metal building at about $18,000 to $30,000, or roughly $10 to $25 per square foot. The engineered steel shell alone usually runs $9,000 to $15,000, with the rest covering the foundation, erection, doors and site work. Final pricing depends on eave height, steel gauge, local snow and wind loads, and finish, so request an engineered quote for an exact figure.
How many cars can you fit in a 30x30 garage?
A 30x30 garage comfortably holds two cars side by side with room to open doors and walk around each vehicle, and many owners fit two cars plus a workshop or storage area. The 30 ft clear span has no center column, so the full 900 sq ft floor stays usable. A taller eave and a wider door let you store a truck, RV or boat instead.
How much does a 30x30 concrete slab cost?
A 30x30 concrete slab typically costs about $4,500 to $10,800, or roughly $5 to $12 per square foot for a standard 4-inch pour with rebar. Price varies with site grading, soil, slab thickness and local labor rates. The slab is poured by a local contractor before your steel building is delivered and erected.
Is it cheaper to build your own metal building?
Handling assembly yourself can save on the labor line, often $3,000 to $6,000 on a 30x30, but the engineered steel package, foundation and permits are the same either way. Universal Steel ships a bolt-together red-iron building engineered to your local code, and professional erection is an optional service if you prefer a skilled crew to raise it. We do not sell weld-it-yourself kits.
Is a steel building cheaper than a pole barn for a 30x30?
At 30x30 a basic post-frame pole barn can have a lower upfront shell price, but a pre-engineered steel building is non-combustible, resists rot and termites, and carries snow and wind loads with a clear-span frame. Over the life of the building, lower maintenance and a 25 to 40 year finish warranty often close the gap. Steel also lets you fully enclose, insulate and finish the interior more easily.
Get your 30x30 estimate
We engineer and ship from the closest plant, across the US and internationally. Tell us your site and use.