Steel Buildings Dream it. Build it.

Commercial Grade. Bolt-Together. Prefabricated.


We leverage our global buying power, design expertise and logistics management, to deliver clients a seamless buying and delivery experience.

From Start to Finish

Great Service Matters

What you build with matters. Who you build with matters even more. Since 2003, we have helped over 5,000 clients realize their building dreams.

From local community projects to multinational developments, we deliver unmatched expertise in design, engineering, fabrication and project management.



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Need some help getting started? Learn about steel building pricing, Allied's design services, and the step-by-step steel building process below.

Blue 40x70x10 steel building garage kit with blue trim, overhead door and man door

Steel Building Sizes

Popular steel building sizes include: 30×40, 30×50,40×40, 40×50, 40×60.

Check out our 3D Building Designer for instant pricing and self-checkout.

Pre-engineered, prefabricated, multistory steel building office building warehouse and distribution center, by Allied Steel Buildings


Complex designs require a consultation. Speak with one of our building experts and ask about our Design Services, not limited to Scope Drawings, Renderings, Tekla Models, & more.

allied steel buildings, steel building kit design services


There are several factors that affect your steel building pricing, learn more about steel building pricing 101. 

allied steel buildings, steel building kit design services


Whether your building is small or large, simple or complex, we will provide the best solution for your project.

allied steel buildings, steel building kit design services


Not sure where to get started? We’ve provided a steel building buyer’s guide for basic guidance on building customization.

Purchasing a Prefab Steel Building

Are you in need of a metal building kit?

Perhaps a flex warehouse, distillery, distribution, manufacturing or storage Warehouse? Or maybe just expanding your business for your growing storage requirements?

We provide features that make planning and constructing your projects a painless process. Our steel building systems are a versatile solution, let’s walk through some important topics to consider.

Designing The Right Steel Building Kit

The right ‘package’ will optimize your project costs and add actual value to your building project.

No matter the size, color, or style of your building, you can count on Allied for custom engineered solutions to fit your steel building needs.

Need a little more guidance, take a look at our Steel Building Buyer’s Guide.

How much do prefab steel buildings cost?

When considering the cost of a prefab steel building, we must have an in-depth understanding of the location, size, and use of the structure. For example, a simple warehouse in Oklahoma will cost much less than its sister warehouse in south Florida. The environmental impacts alone will require that the South Florida steel building be overdesigned, to withstand the strong hurricane force winds that accompany the Florida hurricanes.

The size and use of the facility will have an equal impact on the design of the structure. It’s important to understand the size of the building your business requires, whether or not it’s required to be expandable in the future, applicable loads associated with items sitting on the roof deck, hanging from the structure, attaching to the structure, or the consideration of multiple floors. In multistory warehouses, each floor will require a careful assessment of the equipment point loads.

Do prefab Steel Building Kits come in standard sizes?

All our commercial grade building kits are custom engineered to your specific needs and zip code. Kits are not sold ‘off the shelf’, there are, however, several efficiencies in designing in standard widths and lengths. For larger buildings, that’s usually 20-25’ bay length increments for maximum system efficiency.

UNDER 3K SF. Common small metal building sizes include: 30×40, 30×50,40×40, 40×50, 40×60. If you’re looking for a metal building kit under 3,000 SF, check out our 3D Building Designer for real-time pricing with a self-checkout option: Master Builder.

Enter your design parameters into our Master Builder to get a sence of your building cost. You may also reach out to one of our building experts to finalize your design with any options you aren’t seeing in the platform.

Common small building kit uses:

  • Home garage
  • Auto repair shop
  • Storage shed
  • Outbuilding
  • Man cave
  • Retail store
  • Barn
  • Hay storage
  • Hobby shop
  • Small business
  • Barndominium
  • Office space
  • RV storage
  • Boat storage

OVER 5K SF. Larger or more complex projects require a little more design & engineering coordination. Speak with one of our building experts and ask about our design services that include but are not limited to Scope Drawings, Renderings, Tekla Models, & more.

Common large building kit uses:

  • Aircraft hangar
  • Distribution center
  • Manufacturing facility
  • Processing facility
  • Office buildings
  • Retail store
  • Cold storage warehouse
  • Parking platform
  • Convention Center
  • Hotel
  • Stadium
  • Riding arena

Determining your building clearance requirements

What are you using your steel building for? Is it an auto repair shop, outbuilding, riding arena, distribution center, or maybe a showroom? Is it a storage warehouse, do you have RVs, racks, lifts or heavy equipment that you plan to store or operate within the space? What is the interior building height, clear of obstruction, that’s required for these activities? Steel buildings operate as a system. You may restrict the column and rafter depths as needed but each change will affect it’s supporting member. It’s important to spell out all building design requirements early on, that way all factors that would affect the engineered product are considered in the value-engineering phase. Value engineering is when an engineer optimises the design for maximum cost savings, while achieving the design objectives.

Can steel buildings be aesthetically pleasing?

Without a doubt! Traditional building materials such as vinyl siding, glass, brick, and stone may be added to the facade, however, the attachment method and material load considerations must be considered in the engineering of the structure.

Steel Building Design & Accessory Options:

  • Higher roof pitch
  • Colored roof
  • Roof extensions with soffit panel
  • Sky lights
  • Wall Lights
  • Windows
  • Wainscot
  • Liner Panels
  • Canopies
  • Roll-up Doors
  • Ridge Vents and wall fans
  • And more…

Roof & Wall Panel Options

An easy way to add cost effective design to any building is by selecting the roof panels & wall panels that meet your style. There are many color options, panel profiles such as PBR or Standing Seam, and finishes to choose from. Some panel options, such as Insulated metal panels, have a built in insulation system for quick and efficient building installations.

Accessories & Overhead Door Options

There are many accessory options to consider for your steel warehouse, including insulation, louvers and fans for ventilation, windows, doors, etc. All options should be carefully considered for an optimised system design.

Other building kit options

There are many types of building kits on the market. The question to ask yourself is what kind of building durability will your project require? 

There are many lighter building framing options that may be optimal for simple storage projects, such as C-channel light gauge buildings, Pole barns, Quonset Huts, & Tube Frames.

  • Light gauge steel buildings use C-channel members in place of I-beams. They may be suitable for areas with low wind and snow loads.
  • Pole Barns are building kits that include wood poles, wood roof and wall supports and thin gauge metal panel, usually 29 gauge. Read more about steel buildings vs wood buildings and the advantages steel has over wood.
  • Quonset Huts are rounded or arch-style self-supporting buildings with no internal framing. The designs have limitations on widths and the radius takes away from the usable interior space.
  • Tube Frame buildings are made of aluminum square tube and can be placed on concrete or gravel with a simple anchor. Tube frame buildings usually have a thinner gauge panel exterior, typically 29 gauge.

But If you’re looking for a stronger, commercial grade construction option, an I-beam steel building is the right choice for you.

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More Than 17 Years Of Experience And 5,000 Steel Buildings Delivered, Ensure That We Stand By Our Customers All The Way.

Who We Are

We are a group of passionate, fun-loving, industrious individuals with the experience and expertise needed to provide our customers with the very best service in the steel building industry.

Our engineering department stands out in the steel industry by providing timely and accurate design solutions to each and every one of our clients. With decades of combined experience, our engineers consistently draft and design stunning and efficient building systems that are easy to read and ready for assembly upon site arrival. They develop fully detailed approval, permit, construction, and shop drawings in house, provide structural systems comparisons, building impact probabilities, and real-time estimates of pricing.

Steel Facts

  • Steel is an alloy of iron and carbon containing less than two percent carbon and one percent manganese and small amounts of silicon, phosphorus, sulfur, and oxygen. It is used in every aspect of our lives, from in cars and construction products, to refrigerators and washing machines, to cargo ships and surgical scalpels.
  • Henry Bessemer is considered the father of steel, having discovered it in the mid 19th century. To this day, steel is produced using technology based on the Bessemer Process of blowing air through molten pig iron to oxidize the material and separate impurities.
  • There are more than 3,500 different grades of steel with many different physical, chemical, and environmental properties. Roughly 75 percent of all modern steels have been developed in the past 20 years. 

Why Choose Steel?

No other building material dominates the industrial construction market like steel. Today steel framing constitutes nearly 95 percent of all new industrial construction projects globally. So what is it about steel that gives it such a competitive edge?Flexibility: Using mezzanine floor layouts, steel building owners can easily expand or contract usable space by adding and removing floors, openings, and interior walls. Precision: The manufacturing is partially automated and the finished product is subjected to rigorous quality control testing to ensure reliability, consistency and little to no product-to-product variability. Safety: Steel is the safest choice for nearly every building application, urban or rural, commercial or municipal. Decades of testing have ensured metal building kits are designed and engineered to strict safety standards. Recent advances in 3-D modeling have helped engineers and architects to find potentially hazardous issues and correct mistakes before construction even begins. 

More On Steel

Sustainability: Steel buildings are easily outfitted with insulation with modern products that do not off-gas toxic byproducts if disaster occurs. Steel’s lightweight makes it easier to move around, reducing fuel use and emissions from transportation. Longevity: No material lasts like steel. In the face of inclement weather systems, fire, seismic activity, collisions, and water or insect damage, properly designed steel prevails with ease. Steel requires minimum maintenance, and unlike other building materials, it is resistant to rot and chipping. Aesthetics: Thanks to steel’s unparalleled flexibility and strength, it’s possible to manufacture steel with unique, eye-catching designs in mind. Steel is also easily textured with a variety of finishes that can provide it an aesthetically appealing appearance. Cost: Steel’s resourcefulness translates to considerable economic benefits, including accelerated project schedules, reduced site management costs, labor expenses, and the possibility for an earlier return on investment. 

Why Choose Us?

Since 2003, Allied has been the preferred steel building manufacturer for clients all around the world. What started as a small company in an apartment in Florida has since grown into a multinational firm with projects completed in over 65 countries.We custom-engineer, manufacture, and install steel frames and materials for an endless variety of purposes – garages, gymnasiums, hangars, warehouses, public and self-storage, stables, houses, fire stations, churches, barns, schools, office lots, retail centers, manufacturing facilities, auto-shops, arenas, and much more. Every steel part we manufacture is fabricated to exceed all structural steel codes and construction requirements.What sets us apart is an unwavering dedication to our clients, a guarantee of trust, transparency, and collaboration throughout every transaction and interaction. Seeing the goals and dreams of our customers come to life is our main mission. In this way, we see ourselves as providers, not of a product, but a solution.

Remarkable Innovation

From preliminary evaluations all the way to final inspections of an installed structure, every Allied project is met with curiosity, ingenuity and our highest commitment to supporting the stakeholders involved. Simply put, our job is not done until the customer has been given a reason to use our services in the future.This innovative, customer-centered approach to metal building fabrication has had us recognized by Business Week Magazine as one of “The World’s Most Innovative Companies”. Additionally, we were considered by South Florida Business Journal to be the 15th fastest-growing private company in South Florida, with numerous recognitions in NASCAR publications, Latin Biz Magazine, Ethics of Steel, and other industry publications and newspapers in North America.

Prefabricated Steel Buildings
Service Type
Prefabricated Steel Buildings
Provider Name
6451 N Federal Highway,33308,
Telephone No.1.877.997.8335
Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming, UNITED STATES, LATIN AMERICA, CARIBBEAN, AFRICA,
Allied Steel Buildings manufactures and delivers custom steel buildings and steel building kits for: warehouses, workshops, hangars, commercial buildings., garages, big-box retail, commercial greenhouses, retail centers, supermarkets, cold storage, and more.

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