40×80 Metal Building
3,200 sq ft 12 to 16 ft eave
A 40×80 metal building delivers 3,200 square feet of column-free space, a long 2-to-1 footprint that suits a drive-through workshop, a multi-bay garage, a small warehouse, or a light commercial shop. Universal Steel of America is a manufacturer, not a kit reseller: we engineer, fabricate and ship every frame to meet the snow, wind and seismic code at your address.
At 80 feet long the building gives you room to line up vehicles, equipment or work bays end to end, while the clear-span 40 ft width keeps the entire floor open with no interior posts. Your building ships from the closest of our plants in every region of the United States, and professional erection is available as an optional service if you would rather not build it yourself.
- Dimensions
- 40 ft wide x 80 ft long
- Floor area
- 3200 sq ft
- Clear span
- 40 ft column-free
- Typical eave height
- 12 to 16 ft (up to 20 ft available)
- Frame
- engineered red-iron (I-beam) primary steel
- Panels
- 26-gauge steel roof and wall panels
- Loads
- engineered to local snow, wind and seismic code
- Finish warranty
- 25 to 40 year paint and coating warranty
- Delivery
- ships from the closest plant to your site
- Erection
- optional professional service
Popular uses for a 40×80 Metal Building
Contractor and trade workshop
The 80 ft length gives trades room for a long workbench run, tool storage and a vehicle bay in one open space. A 12 to 16 ft eave clears service trucks and gantry equipment, and the 40 ft clear span means no posts interrupt the floor. It is a common choice for a working shop that doubles as secure storage.
Shop buildingsMulti-bay garage and RV storage
At 40 ft wide you can fit three to four overhead doors across the gable end, and the deep 80 ft run swallows multiple vehicles, a boat or a tall RV. Raise the eave height where you need extra door clearance. This size works well as a multi-vehicle garage or an enclosed RV and boat barn.
Metal garagesAuto and equipment repair shop
The column-free 40 ft width leaves room to set lifts and service bays without working around posts, and the length leaves space for a parts counter and small office. Frame the openings for the overhead doors your bays need. It is a practical footprint for an auto, fleet or heavy equipment repair shop.
Commercial steel buildingsSmall warehouse and storage
With 3,200 square feet of open floor and a clear span, a 40x80 handles racked inventory, pallet storage or a small distribution operation. Taller eaves to 20 ft add vertical stacking room and clearance for forklifts. The narrow footprint also fits tighter commercial and industrial lots.
Metal warehouse buildingsAgricultural and equipment building
Farms use this size to store implements, hay and feed under one engineered roof, with the long run giving a clear drive-through path end to end. The clear span keeps tractors and trailers maneuverable inside. Add framed openings and a lean-to where you need covered access.
Agricultural steel buildingsLight commercial or retail space
The 3,200 square foot floor is enough for a showroom, stockroom and small office under one roof, suiting a retail outlet, service business or trade counter. Windows and walk doors frame in a customer-facing entrance, while the back stays open for storage. It is a cost-effective shell for a small commercial venture.
Commercial steel buildingsA long, open footprint built for working space
The 40 by 80 shape is twice as long as it is wide, which makes it a natural fit for a contractor shop, an auto repair bay, an equipment barn, or a small distribution and storage operation. The 40 ft clear span keeps all 3,200 square feet usable, and an 80 ft run gives you depth for a wash bay, a parts counter or a back office without crowding the work floor.
Configured around how you will use it
Because the frame is engineered to order, you choose the eave height, door openings and wall layout that match the job. A 12 to 16 ft eave clears most service trucks, lifts and RVs, and taller eaves to 20 ft are available where you need overhead doors or stacked storage. Add framed openings for overhead and walk doors, windows for an office corner, and insulation where the space is heated or climate sensitive.
Living quarters and barndominium options
A 40×80 is large enough to split between a shop and finished living space. If you are weighing a barndominium or living quarters, see our barndominium buildings for layout and finishing guidance. Note that Universal Steel supplies the engineered steel shell; full residential steel homes are outside what we build.
40×80 Metal Building questions
What is the average cost of a 40x80 metal building?
Industry-typical pricing for a 40x80 metal building runs from about $55,000 to $90,000 for an engineered red-iron shell, and roughly $90,000 to $150,000 fully installed once foundation, erection and finishing are added. The exact figure depends on eave height, snow and wind loads, your foundation and how much of the interior you finish. These are estimates, not a Universal Steel quote; request a quote for pricing built to your spec.
Is it cheaper to build a metal building or wood?
An engineered steel building is usually the better long-term value at this size. Steel frames clear-span 40 feet without interior posts, resist fire, rot and pests, and carry a 25 to 40 year finish warranty on the paint, where a comparable wood or pole structure needs more interior support and more maintenance over time. Up-front kit pricing can be close, but steel typically wins on durability and usable open space.
How do you insulate a 40x80 metal building?
The two common methods are spray foam applied to the inside of the steel panels, or fiberglass batt or rigid board held against the walls and roof with a metal stud grid. Spray foam gives the best air seal and higher R-value, while fiberglass is lower cost. Budget roughly $10 to $30 per square foot installed depending on the R-value and how much of the building you condition.
How much does a 40x80 concrete slab cost?
A 3,200 square foot slab for a 40x80 building typically costs about $16,000 to $25,000, or roughly $5 to $8 per square foot. The price moves with site grading, soil conditions, slab thickness and any added reinforcement or footings the engineered frame requires. Get a local concrete quote, since regional labor and material rates vary widely.
What can you use a 40x80 metal building for?
The 3,200 square foot column-free floor suits a contractor or auto repair shop, a multi-bay garage, RV and boat storage, a small warehouse, an agricultural equipment building, or a light commercial and retail space. The long 2-to-1 footprint is ideal for lining up bays, vehicles or equipment end to end. A 40x80 can also be split between a shop and barndominium living quarters.
Get your 40x80 estimate
We engineer and ship from the closest plant, across the US and internationally. Tell us your site and use.