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Need a specific size?

  • We can cut to meet your projections specifications.
  • On-site delivery is available.

Call us today at 608-754-1000 for available stock or visit us in Janesville.

Structural Steel Supplier

Industrial structural steel — including angle iron, channels, and beams — conforming to ASTM A36 specifications, with stock lengths of 20 ft and 40 ft. These structural shapes are designed to meet building and fabrication demands where strength, load-bearing capacity, and reliability matter. Custom size cuts to meet project specifications, and local pickup or on-site delivery from Janesville, WI facility. Ideal for contractors, builders and fabricators working on construction, framing, support structures, and other applications requiring robust, ready-to-use steel components.

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Picture of Galvanized Steel Angles

Galvanized Steel Angles

Angle
Built for strength and precision, our galvanized steel angles are a versatile structural solution for construction, fabrication, and industrial projects. Conforming to ASTM A36 standards and available in 20 ft and 40 ft stock lengths with a wide range of thickness and width options, these angles deliver reliable performance where support and rigidity matter most. Order online or visit our Janesville location to get the exact sizes you need with fast turnaround and exceptional local service.
Picture of Steel Channel

Steel Channel

Channel
Premier supplier of structural channel, essential for framing, supports, and various construction and fabrication projects. Maintaining a large inventory of high-quality bar channel and standard structural channel in carbon, aluminum, and stainless steel grades. Stock ranges in height from 1" up to 18" and can be customized with our in-house cutting services.
Picture of Industrial Steel Beams

Industrial Steel Beams

Beams
Comprehensive selection including wide flange, junior, and I-Beams in various grades of carbon, aluminum, and stainless steel. Inventory spans heights from 3" to 18", lengths up to 40', and weights up to 50# per foot, ensuring we have the right structural component for your project's demands. Contact us to check our current stock or to discuss your specific cutting and delivery needs.

FAQs

What types of structural steel does AISS carry?
AISS supplies structural steel including angle iron, steel channel, wide-flange beams, junior beams, and I-beams. These products are used for construction, framing, supports, fabrication, equipment, and other projects where strength and load-bearing capacity are important.
AISS stocks many structural steel products in 20-foot and 40-foot lengths. Available lengths vary by product, size, and material, so contact the Janesville team to confirm current inventory for your project.
Yes. AISS offers in-house cutting services for structural steel, allowing beams, channels, angles, and other materials to be cut to your project requirements. Ordering material cut to size can also reduce jobsite preparation and material waste.
AISS carries wide-flange, junior, and I-beams with heights ranging from 3 inches to 18 inches, lengths up to 40 feet, and weights up to 50 pounds per foot. Availability varies, so it's best to check current stock when requesting a quote.
AISS stocks bar channel and standard structural channel in sizes ranging from 1 inch to 18 inches in height. Carbon steel, aluminum, and stainless steel options are available, and channel can be cut to the length required for your project.
Each structural shape serves a different purpose. Beams are commonly used for heavier load-bearing applications. Channel has a C-shaped profile that works well for framing, supports, and reinforcement. Angle has an L-shaped profile and is commonly used for bracing, frames, supports, and general fabrication. The best choice depends on the loads, connections, and design requirements of the project.
Yes. AISS serves customers who need anything from a single piece to larger quantities of steel. There is no minimum length or quantity requirement, and material can be cut to length at the Janesville facility.
Yes. AISS offers on-site delivery from its Janesville facility. Local and regional deliveries can be arranged, and longer-distance delivery may also be possible depending on the order and delivery costs. Contact AISS with your material list and delivery location to discuss options.

Contact American Industrial Steel & Supply in Janesville, Wisconsin!

For a quote on our steel products, please fill out the contact form here or reach out to us by phone or email below!

(608) 754-1000sales@aissllc.com

American Industrial Steel And Supply Service Areas Map

American Industrial Steel & Supply

Stronger Communities
Built Together

American Industrial Steel & Supply proudly serves businesses, contractors, manufacturers, and fabricators throughout Southern Wisconsin, Northern Illinois, and surrounding communities. Based in Janesville, Wisconsin, we offer convenient steel pickup and regional delivery to help keep your projects moving.

Wisconsin

  • Baraboo
  • Beloit
  • Delavan
  • Edgerton
  • Elkhorn
  • Evansville
  • Fond du Lac
  • Janesville
  • Lake Geneva
  • Madison
  • Milton
  • Monroe
  • Oconomowoc
  • Oshkosh
  • Platteville
  • Portage
  • Sheboygan
  • Watertown
  • Whitewater
  • Wisconsin Dells

Illinois

  • Rockford
  • Freeport
  • Belvidere
  • Harvard
  • McHenry
  • Crystal Lake
  • Woodstock
  • DeKalb
  • Surrounding communities

Additional Service Areas

  • Milwaukee area
  • Green Bay area
  • La Crosse area
  • Dubuque, Iowa
  • Other surrounding communities

Need steel for your next project? Whether you’re picking up materials at our Janesville location or need delivery to your job site, American Industrial Steel & Supply is ready to help.

Contact Us for Steel Pricing & Availability