Simpson Steel Building Company proudly provides durable, affordable, and pre-engineered steel building kits in Illinois that meet the needs of both residential and commercial clients. Since 1980, we have helped customers across the U.S. design and assemble long-lasting structures that stand up to regional climates and meet local building codes. From storage facilities and garages to agricultural barns and commercial warehouses, our metal building kits offer strength, flexibility, and value for every purpose.
Delivering Reliable Metal Building Solutions Across Illinois
From Chicago to Springfield and Rockford to Peoria, our Illinois metal buildings are designed to withstand the state’s varied conditions — from hot, humid summers to icy Midwest winters. Each structure is engineered for stability, durability, and energy efficiency, ensuring that your investment remains solid year after year.
Our customers include homeowners, farmers, and business owners throughout the state who rely on Simpson Steel Building Company for high-quality steel building kits that are easy to assemble and built to last. Whether you need a small workshop or a large warehouse, we provide flexible options to meet your project’s unique needs.
Offering Affordable and Durable Steel Building Kits
At Simpson Steel Building Company, we’re known for our patented steel truss design — a structural innovation that offers the same strength as traditional rigid frame buildings but at a significantly lower cost. On average, our designs are about 30% more affordable than similar-sized rigid frame models.
This makes our Illinois steel buildings ideal for customers looking to balance quality and budget. Our pre-engineered kits are precision-manufactured, pre-cut, and pre-drilled for quick and easy on-site assembly. These kits are perfect for a variety of uses, including agricultural storage, equipment sheds, manufacturing facilities, or personal garages.
Meeting Illinois Building Standards and Climate Needs
Illinois weather can be unpredictable, but our metal buildings are engineered to meet local building codes and withstand the state’s snow loads, wind pressures, and temperature swings. With widths up to 50 feet and heights up to 18 feet, our steel truss systems provide dependable performance for residential, agricultural, and light commercial applications.
We also offer rigid frame options for customers needing larger spans or specialized structural requirements, ensuring that every project receives a safe and compliant design.
Partnering With a Trusted Steel Building Manufacturer
With more than 40 years of experience, Simpson Steel Building Company has built a reputation for excellence, reliability, and innovation. Our Illinois metal buildings reflect decades of engineering expertise and a dedication to customer satisfaction.
Whether you’re constructing a workshop in Bloomington, a barn near Champaign, or a warehouse outside Chicago, our team is ready to help. Contact Simpson Steel Building Company today to request a free quote and learn how our steel building kits can bring your project to life.
Simpson Steel Building Company has been providing metal buildings to the great state of Illinois for over 40 years. We’ve become very familiar with and kept up with local building code changes that have come up over the years. Our patented truss design gives you all the benefits of a traditional red-iron structure for a much lower price point!
Our bolt-together building kits are easy to assemble and only require a forklift or tractor with tongs to move around. This makes our building kit the perfect solution for any Illinoisan looking for an affordable DIY Kit for their project needs. Speaking of projects, our buildings work great for a multitude of uses, such as hay barns, stables, garages, shops, commercial buildings, and barndominium homes! In the event that you want someone to erect the building for you, we have a list of local contractors we can refer to help with that aspect of the project.
Our steel buildings for Illinois are designed to handle both the lower wind and snow loads in the southern and central part of the state such as in Carbondale, Springfield, and Peoria, as well as the heavier snow and wind loads in the Lake Michigan area such as in Rockford, Naperville, and Chicago. Simpson can provide complete engineered plans, engineered design calculations, and engineered foundation plans that are stamped by a licensed Illinois engineer in the event you need these items for permitting. Our building kits have never been denied a permit in the state of Illinois.
Our Products
Whether you are looking for a simple metal building for sale or something that incorporates a more complex design, our experts can handle the job at hand. Some of the projects and structures we provide for our clients include:
- Illinois Agricultural Steel Buildings
- Metal Airplane Hangars In Illinois
- Illinois Churches
- Illinois Metal Garages and Workshops
- Industrial and Commercial Steel Building in Illinois
- Illinois Mini Storage Buildings
- Illinois Residential and Barndominum Buildings
This list isn’t comprehensive, so please reach out to our experts if you have another project in mind that isn’t on this list. Simpson Steel Building Company is able to manufacture our high-quality pre-fabricated buildings thanks to our unique steel truss designs. This metal truss is similar in shape to a wooden truss with a bottom cord except made entirely out of quality metal. We also use 26-gauge metal sheeting which is heavier and provides more durability. Twelve-gauge red iron structural steel is also used to provide additional strength and quality.
Advantages of Simpson Steel
The main advantage of doing business with Simpson is two-fold: we offer the highest level of quality & customer service at the most economical pricing.
- Over 5000+ buildings completed nationwide – chances are, there is a Simpson Steel building within 50 miles of where you live!
- Steel buildings shipped in all 50 U.S. states, including Illinois
- Engineering available for all 50 U.S. states
- UL 90 approved system
- Quick and efficient turnaround
- Drawings 10 days to 2 weeks, where industry standard is 3-4 weeks
- Anchor Bolt Plan can be provided as needed
- Delivery 2-3 weeks after receipt of signed fabrication release, where industry standard delivery is 8-12 weeks
- Dun & Bradstreet Superior Rating
Flexible, Inexpensive Shipping
- We ship from over 15 plants nationwide making freight cost affordable.
- Freight cost is always included in the pricing of your Simpson Steel metal building
- Materials are nested together for economical shipping
- Insulation is shipped in a covered van to protect the product from the elements
- Clips and gusset plates are shipped via UPS Ground Service
- It is the responsibility of the customer to unload the building upon arrival
- Our mini storage kits include rollup doors that will be delivered separately from the building materials
Contact our Steel Building Experts Today
If you’re in the market for a pre-engineered steel truss frame building, look no further than Simpson Steel for your next project. Considered the experts in steel truss for nearly 40 years, our experienced team can help guide you in designing your steel structure. Contact us at Simpson Steel Building Company or request a steel truss frame quote.
Frequently Asked Questions
Do you deliver steel building kits across Illinois?
- Yes. We provide steel and metal building kits throughout the state, including Chicago, Rockford, Springfield, and surrounding communities.
What types of structures can you build?
- Our designs are perfect for garages, barns, workshops, warehouses, and agricultural or commercial storage facilities.
How are Simpson steel truss buildings different from rigid frame models?
- Our patented truss design offers comparable strength at a lower cost, saving customers roughly 30% compared to traditional rigid frame structures.
Are your buildings engineered for Illinois weather?
- Absolutely. Each structure is designed to handle the state’s snow, wind, and temperature conditions while maintaining long-term durability.