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What's included
Kit packages include:
- Steel I-Beam framing
- Steel roof & wall panels (26ga)
- Complete trim package
- Two framed door openings
- Foundation anchor bolt plans
- Engineer stamped plans
- Building kit delivery
- Installation instructions
- All bolts, flashing & sealants

I-Beam framing
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Features
Benefit from:
- Bolt-up construction
- Trussless roof design
- Clearspan widths to 300'
- Certified to 160 MPH wind
- Certified to 110 PSF snow
- 30+ year warranty
- Fast, free delivery
- Fast build time
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Customization
Custom options:
Doors - Choose overhead garage doors, rollup, sliding or bifold doors.
Roof profile & pitch - Adjust the gable roof pitch or select a single-slope, gambrel, or monitor profile
Insulation - Opt for vinyl-faced fiberglass, spray foam, or insulated metal panels (IMPs).
Structural upgrades - Add porches, overhangs, a carport lean-to, or a mezzanine for loft storage.
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Exclusions
Items not included:
- Permits
- Foundation
- Installation
- Insulation
- Interior build out
50x80 Metal building
Looking for a cost-effective, maintenance-free storage solution that’s built to last? Our bolt-up 50' x 80' steel I-beam buildings are made from American steel and are engineered to meet all local building codes for snow, wind, and seismic loads.
You can easily customize the building to meet your specific needs, thanks to a wide range of configuration options. With 4,000 square feet of clear-span floor space and an unobstructed overhead area provided by the trussless roof design, you benefit from maximum usable space.
Choose your custom options for this building and get competing quotes from local suppliers.

Get Four Quotes
Compare prices from local suppliers and savePopular products
Here are some of our most popular standard height options for our 50x80 building products. Please be aware that a two-foot gap is required from the eave to the top of the tallest door (e.g., a 10' door will require a 12' eave height). For floor plans and layout ideas, see our sample metal building plans.
Building Kit Features
Our 50 x 80 metal building kits are ideal for those looking for a basic structure. The kit comes with pre-drilled primary steel I-beam framing and secondary framing, pre-painted PBR metal wall and roof panels, and all the necessary fasteners and sealants. You then customize this steel kit to suit your intended application by adding framed openings for doors and windows - sized and positioned to your specifications.
How much does a 50x80 Steel building cost?
The installed cost of a 50x80 steel building averages $108,000-$160,000. This includes the building kit, priced at $18-$22 per square foot, the foundation ($4-$8/sq ft), and construction costs ($5-$10/sq ft). Remember to factor in additional expenses like doors, windows, and insulation.
These costs vary depending on the location of the building site, local labor costs, and the complexity of the building's design. Please use our quote request form for accurate written quotes from four competing suppliers, or for a quick 40x80 metal building price estimate, see our metal building prices page.
| Item | Square Foot Cost |
|---|---|
| Building (shell) | $18-$22 |
| Foundations | $4-$8 |
| Construction | $5-$10 |
| Interior Finishing | $10-$100 |
Common Questions
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How many square feet is a 50x80 building?
A 50x80 steel building offers 4,000 square feet of unobstructed floor space, providing a clear view for various applications such as commercial storage, flexible warehouse use, or even as modern residential buildings.
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What roof profiles & pitches are available for a 50x80 building?
Standard 50x80 steel building packages are shipped with either a gable or single-slope (shed roof) roof profile and a pitch of 2:12 or 1:12. For an additional cost, the pitch on both profiles is available from 2:12 to 6:12. Alternate profiles also include monitor style and gambrel style, most commonly used in agricultural applications.
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How much does a 50x80 concrete slab cost?
For a standard 4" thick concrete slab you can expect to pay approx. $20,000. Alternatively, for a commercial 6" slab you should budget for approximately $28,000. These prices are based on a national average of $4 to $8 per square foot.
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What other similar building sizes do you offer?
Our suppliers offer the following-sized buildings with similar square footage to the 50x80 model:
- 40x60 metal building package
- 40x80 metal building package and the
- 50x100 steel building package
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What is a 50x80 red iron building?
Red Iron buildings are pre-engineered metal buildings (PEMB) with a red oxide paint coating to protect against corrosion. The term ‘red iron’ is commonly used to describe PEMB buildings due to the color of the red oxide paint applied to the the metal framing.
Further Reading
Why choose us?
BuildingsGuide simplifies the process of finding reputable suppliers of prefab metal buildings, allowing you to select the ideal vendor for your needs and budget.
Since 2004, over 200K buyers have saved an average of 28% on their project with our multiple quote service.
Proudly serving customers in the United States & Canada for over 20 years.
Compare & save!
Let us help you find the best deal on a metal building for sale.
- Tell us about your project
- We match you with vetted suppliers
- You receive four competing quotes
- Select the most suitable supplier
- Start your project




