Best Steel Building Companies

  • Capital Steel
  • Armstrong Steel
  • Olympia Steel Buildings
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A metal building is a considerable investment. Read our guide to learn about and choose the best steel building company for you. We compared traditional and full-service building companies by types of materials available, range of services offered, engineering capabilities and customer service.

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How to choose a steel building company

Types of buildings offered

There are several different sizes and styles of steel buildings, but most companies only specialize in building two or three types.

  • Size: Some steel building companies provide a broad range of sizes, from garages and small metal barns to huge warehouses and horse arenas.
  • Function: Many steel building companies focus on structures meant for particular functions, such as multi-bay commercial garages, factories or agricultural buildings.
  • Custom construction: Some steel building companies maintain design staff to tailor their standard offerings for clients with very specific needs.

Customer service

When purchasing a steel building, consumers need assistance during two key phases: first, during specification and purchase, to ensure that what they’re asking for is appropriate to their needs and building site; and second, during and after assembly to correct any deficiencies and resolve misunderstandings. Be clear about how this assistance will be offered before you select your provider.

  • Online customer service: Some companies have extensive online support systems, such as live chat, email-based customer service and detailed online forms to help customers make their purchasing decisions.
  • Phone-based customer service: Companies that provide phone-based customer service to consumers are often available during business hours to speak with consumers who need help.
  • In-person customer service: Some steel building companies send representatives to help customers who are buying steel buildings; these representatives can survey land, discuss design wants and needs, help unload and construct buildings, communicate with contractors, or help troubleshoot problems after the buildings have been built.

Range of services offered

While steel building companies primarily manufacture steel components, they also offer services beyond supplying the parts for a steel building.​

  • Building components: Many companies simply sell a kit of parts that can be assembled by a contractor retained by the client.
  • Finished structure: Some companies also pair those customers with a contractor certified to construct the building. Be aware, in this case, of who is providing the warranty on the building so you know whom to contact if anything goes wrong.
  • Additional services: Some larger companies offer additional services offered, such as custom design and temporary building rentals.


Some steel building companies have obtained certifications that speak to the quality of their products. Multiple organizations assess companies and grant different types of certification.

  • Metal Building Manufacturers Association: MBMA works with the International Accreditation Services (IAS) to inspect steel buildings for quality assurance.
  • American Institute of Steel Construction: The AISC is a technical institute and trade association that has created guidelines to evaluate every step of the steel building construction process.
  • LEED certification: People concerned with the environment can look for a steel building company that uses LEED-compliant products in their buildings.

Building materials used

There are different types of materials available for the exterior envelope of a steel building.

  • Heavy-gauge steel: Envelope panels are typically corrugated for flatness and strength, and coated with weather-resistant paint. Make sure that a sealing finish process is part of the construction.
  • Alloy-coated steel: Galvanized or Galvalume is electrically coated steel that offers a longer life in coastal locations where there’s corrosive salt in the air.
  • Recycled content steel: Steel made from recycled content is often made up of 80 percent recycled materials, making it an eco-friendly option.

Engineering capabilities

Manufacturers vary from one another in the technical abilities of their design and manufacturing staffs. Some use consulting engineers to design a series of components, while others maintain an engineering staff to verify specifications and offer custom designs.

  • Limited prefabricated designs: Some companies simply sell a limited selection of steel building designs for very standardized needs, such as sheds, barns and storage units.
  • Customer-submitted designs: There are fabricators that can accept designs from clients, verify the engineering specification and manufacture the components for assembly by a contractor hired by the client.
  • Complete custom design: Some steel building companies have the capabilities to design, manufacture and, in some cases, construct the facility in a turnkey process called design-build.

What are different types of steel building companies?

Traditional building companies

Traditional steel building companies simply manufacture and deliver the components for a complete pre-engineered structure. The client hires a contractor to unload and assemble the buildings. If you buy from one of these firms, you’ll be responsible for hiring the individual contractors to build, electrify, plumb and insulate the building.

Custom building companies

Custom building companies work with clients to tailor a design to their needs. The parts are fabricated and shipped to the site, where they are unloaded and assembled by a contractor hired by the client.

Full-service building companies

Full-service building companies design and build the structure as a turnkey operation.

Who needs steel buildings?

Individual property owners

Individuals who are looking to purchase a steel building may want to use it on their personal property for a dwelling, storage space or shelter for animals or equipment, among other uses.

Industrial businesses

Most steel buildings are constructed for manufacturing, fabrication or storage in industrial parks or commercial zones.

Farm owners

Farm owners use steel buildings to house animals, as well as to store tools, products and equipment.

Municipal facilities

Many government organizations, such as firehouses, police stations and highway departments are housed in steel buildings.

Storage facilities

Rental storage facilities have specific building requirements that are met by many steel building manufacturers.

Steel buildings FAQ

How much are prefab steel buildings?

The price of prefab steel buildings ranges from approximately $5,700 to $23,000. The cost will vary depending on the size of the building, as well as any extra options you add on to the building, such as:

  • Wall panels
  • Insulation
  • Skylights and wall lights
  • Frames and trim
  • Gutters and downspouts
What sizes do metal buildings come in?

Metal buildings typically start at 30 feet by 40 feet and expand by 10-foot intervals to a maximum size of 60 feet by 100 feet.

Are steel homes cheaper to build?

Generally, steel-frame homes are more expensive to construct than wood-frame homes. However, when exploring the cost of a steel-frame home versus a wood-frame home, you can break it down into short- and long-term considerations:

  • Short term: Steel-frame homes cost about $9.50 to $11 per square foot, as opposed to wood-frame homes, which average $1 to $5 per square foot. Although the cost of wood fluctuates and the type of wood determines the final price, wood construction is typically cheaper. Wood-frame homes are also easier to modify, and far more contractors are familiar with working with the material.
  • Long term: Steel-frame homes have several long-term benefits that wood-frame homes do not. Steel-frame homes typically have lower insurance fees, as they are less prone to structural damage from weather, rot, insect infestations and fire damage. However, keep in mind that steel-frame homes are more difficult to insulate and may suffer from rust.
Can steel buildings be used for homes?

Yes, besides homes built with steel frames, full metal home kits are becoming more popular. Homeowners looking to build their own homes sometimes use steel metal home kits.

What is a modular garage?

A modular garage is a garage delivered to a building site in two separate pieces. From there, an expert crew will assemble the pieces to form the final product. Depending on where you buy, the modular garage company may or may not include the cost of assembly in the overall price.

What is a metal building erector?

A metal building erector is a professional who is knowledgeable and experienced in the process of assembling metal buildings. These individuals are thoroughly trained in the process and have an extensive understanding of the building materials, equipment and labor necessary for the successful completion of a building.

How long does it take to build a steel building?

Typically, the process of building a steel building can take anywhere from three to seven days. The time it takes to construct a steel building depends on the following variables:

  • Building size: Larger buildings take longer to complete.
  • Crew size: Larger crew sizes can work more efficiently and complete the job faster.
  • Structure complexity: Simple structures take less time to complete.
  • Weather: The forecast can drastically change the building schedule if the weather is unsafe for crew members.

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    Author reviews for steel building companies

    General Steel

    General Steel Buildings, based in Colorado, is widely regarded as a leader in the steel building industry. Operating for more than 20 years, General Steel has grown from a supply company to a full-service construction company.​

    • Range of services: General Steel is a full-service company that helps clients plan and construct a steel building.
    • Prominent clients: The company has proven its reputation by working with some outstanding clients, including the White House, NASA, Disney, GM and Boeing.
    • Time in business: General Steel has been constructing steel buildings for two decades.
    • Free quote: If clients have an idea for a steel building they'd like to buy or build, General Steel will give a free initial consultation and quote for the customers so they know how much a project will cost before they commit.
    • Regular specials offered: General Steel Buildings offers rotating specials on buildings via its website, which means customers can find regular sales and value prices.
    Read 287 Reviews
    Capital Steel

    This supplier of American-made steel buildings partners with local contractors around the country. They perform background checks on all their contractors who install pre-engineered steel buildings in your location.

    • American-made: Capital Steel works with only materials that are from the United States.
    • Warranty: Every Capital Steel steel building comes with a 50-year warranty once the structure is complete.
    • Contractor partners: Contractors can partner with Capital Steel to get customized training, engineering support, marketing materials and building discounts.
    • Color choices: Choose the best color for your project using the color wheel on Capital Steel’s website.
    Read 27 Reviews
    Armstrong Steel

    Based in Greenwood Village, Colo., Armstrong Steel has become a leader in the steel building industry. The company has been recognized for its commitment to customer service and high-quality materials.​

    • Knowledgeable: Armstrong Steel has knowledgeable steel building experts, and they not only build steel buildings, they also educate potential customers about the science and value behind them via an extensive resource guide on their website.
    • Building quality: The American Institute of Steel Construction sets a limit on the weight load a steel member can hold; Armstrong Steel only loads 80 percent of that weight onto each member meaning a building’s components are never weighed down, so the building lasts longer and better withstands the elements.
    • Excellent press: The company has been positively reviewed in publications such as Forbes, Inc. and the Denver Business Journal.
    • Prominent clientele: Armstrong Steel works with some of the country's most outstanding and reputable businesses, including Microsoft and Dow, proving their reputation as a leader in the industry.
    • Community outreach: Armstrong Steel is committed to charity and community service, donating time and funds to causes such as the Denver Botanic Gardens, United Way, Boys and Girls Clubs of America and Peyton Manning Children's Hospital.
    Read 395 Reviews
    Worldwide Steel Buildings

    Founded in 1983, Worldwide Steel Buildings produces both steel trusses and prefabricated steel buildings. The company is headquartered in Peculiar, Mo.​

    • Residential option: Worldwide Steel Buildings is one of the few companies best known for creating steel structures that people can live in.
    • Wide experience: The company has sold and delivered steel buildings to customers in all 50 states, and it has experience creating structures to withstand the elements no matter what the climate is.
    • Hangar specialists: The company has earned a reputation as an expert in the aircraft hangar manufacturing business and is a member of the Aircraft Owners and Pilots Association.
    • Years of experience: Worldwide Steel Buildings is one of the longest-operating manufacturers of steel buildings.
    • Free quote: Worldwide Steel Buildings works with customers interested in its services and products and gives them a free quote for their project before any commitment is made.
    Olympia Steel Buildings

    Olympia Steel Buildings is headquartered in Mckees Rocks, Pa. The company has more than 40 years of experience creating prefabricated metal buildings for customers.

    • Quick estimates: Olympia Steel Buildings can give customers quotations on plans within 24 hours of submission of a form available on their website.
    • One-stop shopping: The company combines steel-building manufacturing with its own construction services for single-source accountability on all aspects of designing, purchasing and erecting a steel building.
    • Quality guarantee: The company offers a 40-year rust-through perforation warranty on Galvalume metal and a 40-year paint warranty.
    • Finish options: Olympia carries 12 different colors of steel panels and trim.
    • Sales: Olympia runs online specials on non-purchased or unused buildings and materials.
    Read 100 Reviews
    Braemar Steel Buildings

    Braemar Steel Buildings has been selling steel buildings in the United States and Canada for over 35 years. The company is headquartered in Englewood, Colo.​

    • Variety of products: Braemar Steel Buildings lets customers choose between kits for prefabricated buildings or custom-designed steel buildings.
    • Easy online design help: An online “Design Now” option allows consumers to design and price their own steel building in a matter of minutes.
    • Customizable: All Braemar buildings are completely customizable to suit any standard or specific application, including commercial, industrial, residential and agricultural.
    • Price matching: The company promises to match or beat the price of any identical building offered by another company.
    • Seasonal sales: Braemar offers sales on steel buildings seasonally.
    • International: Braemar has experience working with customers across the United States, including Hawaii and Alaska, and Canada as well.
    Curvco Steel Buildings

    Curvco Steel Buildings is a steel buildings company with corporate offices in Delray Beach, Fla., and Bethel Park, Pa., and regional offices in Pittsburgh, Dallas and Seattle.

    Read more about Curvco Steel Buildings
    Rocket Steel Buildings

    Rocket Steel Buildings is a steel building company based in Pittsburgh, Pa. The company has over 50 years in building design experience, and specializes in arched metal building kits.

    • Low prices: Rocket Steel Buildings is well known in the industry for offering competitive prices on steel buildings.
    • Product warranties: The company offers a 40-year, rust-through perforation warranty on Galvalume panels, and a 40-year paint warranty against peeling and flaking.
    • Clearance specials: In addition to a monthly sale, Rocket offers regular clearance prices on its steel building kits.
    • Green initiatives: The company uses end-wall panels and trim with AkzoNobel Ceram-A-Star 1050 coating, a product that is Energy Star and LEED compliant in that it reflects infrared light and absorbs visible light.
    • Certified internationally: Rocket Steel Buildings sells kits for buildings that are certified for use in the United States, Germany and much of Western Europe.
    RHINO Steel Building Systems

    RHINO Steel Building Systems is based out of Denton, Texas. The company has been manufacturing steel buildings since 1998.​

    • Blog: The company website features a blog with informative stories about steel buildings.
    • International sales: The company sells products in the United States, Canada and Mexico.
    • Product variety: RHINO creates steel buildings—in seven different framing styles—for a variety of purposes, including restaurants, aircraft hangars, warehouses, storage facilities and churches.
    • Recycled material: As an eco-conscious company, RHINO makes its structures from 89.5 percent recycled materials.
    • Video instructions: RHINO steel not only sends written installation instructions with a purchased building, but video demonstrations as well.
    Heritage Building Systems

    Heritage Building Systems has been producing steel buildings since 1979. The company is based in North Little Rock, Ark., and its parent company is the larger NCI Building Systems.​

    • Certifications: Heritage Building Systems has many professional affiliations and certifications including the Metal Building Manufacturers Association, the International Accreditation Service and the Metal Construction Association.
    • Customer service: Heritage Building Systems provides easy and convenient customer service options via phone and their website.
    • Variety of products: Heritage Building Systems manufactures components for a variety of uses, including commercial and industrial buildings, agricultural structures and mini-storage facilities. Free quotes are available via the company’s website.
    • Expert knowledge: Heritage Building Systems manufactures components for a variety of uses, including commercial and industrial buildings, agricultural structures and mini-storage facilities. Free quotes are available via the company’s website.
    • Glowing reviews: The company can provide good reviews from past customers, and regularly receives high ratings from ranking sources.

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