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Siskin Steel & Supply – Spartanburg, SC

We’re thrilled to announce that our Spartanburg expansion is now complete. In just a year, we have doubled our square footage and added Structural Steel to Spartanburg’s inventory. Our newly added Hydmech horizontal saw is currently taking orders, and we will be adding a new Messer Plasma/Drill machine that will be operational as early as October of 2023!

Why choose us?

  • Extensive Inventory –  Your one-stop steel shop
  • Value Added Services – Customized processing services
  • Just-In-Time Delivery – Steel delivered when you need it
  • Unparalleled Quality – Internal quality checks and certified material test reports
  • Experienced Team – Our expert sales team is equipped to help with your steel needs
View of the Spartanburg warehouse. Both the old building and the newest addtion.

Carbon SteelStructural beams can be produced in carbon, alloy, stainless, and aluminum.

We carry I-beams and H-beams in sizes W4 x 13 to W30 x 99 that can be cut to length in-house.

Metal angles come in carbon, alloy steel, aluminum, and stainless steel.


  • L1/2″ x 1/2″ x 1/8″ up to L10″ x 10″ x 3/4″ in 20′ and 40′ lengths

*More sizes available upon request.

Siskin Steel - Channels

We carry channels in carbon and aluminum and offer the full ASTM steel size range in stainless steel, including 304 and 316. In addition, we stock a full range of aluminum channels in both structural and American Association dimensions.

  • Standard Channels
    • carbon and alloy ranging in sizes C3 x 4.1 to C15 x 50
  • Miscellanies Channels
    • MC x 58 up to 60ft lengths

Siskin Steel - Rect TubeSquare and Rectangular Tubing:

  • Available in Carbon, Alloy Steel, Stainless Steel, and Aluminum
  • Sizes- 1/2″ x 1/2″ x 16 ga wall – 18″ x 5/8″ wall
  • Carbon up to 60′
  • Stainless 20-40′
  • Aluminum 20-foot, 21’1 and 24-foot lengths

*More sizes available upon request.

Processing Capabilities

Innovative metal-cutting solutions
State of the art processing equipment, designed to cut your parts perfectly to save you time and money.

Services offered:

Tee Splitting and Straightening
Flame cutting
Saw Cutting
Tube Laser Cutting

*More services available upon request.



Have a question or have an inquiry for us? Request a quote and one of our experts will be in touch with you.