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Steel Fence Tubing Manufacturer

At Lock Joint Tube (LJT), we manufacture our traditional round steel fence posts, as well as square & rectangular fence tubing at our state-of-the-art tube mills that can hold extremely tight tolerances, a standard for our company since its inception in 1919. LJT manufactures mechanical & structural grade steel tubing in South Bend, IN, Chattanooga, TN, and Temple, TX.

At LJT we know each customer has tailored specifications, which is why we have an in-house metallurgical team to help you develop your custom application.

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LJT produces steel tubing for fence posts

Why LJT as your Steel Fence Post Supplier?

  1. Over 350 different Outside Diameters to choose from
  2. Wide variety of materials & coatings from
    • Hot Rolled Pickled & Oiled (HRPO)
    • Cold Rolled, Commercial Quality (CRCQ)
    • Hot Rolled, Black (HRBL)
    • Aluminized
    • Galvanized, or our signature Lock-On-Galv® clear coat
  3. Products are manufactured to customer-specific ASTM or individual company specifications to ensure your product meets or exceeds your individual specifications
  4. The team to custom deliver your application or strength requirements

We Can Accommodate Special & Unique Requirements

Custom Tubing Solutions for Your Application

HRPO, CRCQ, HR Black and Galvanized Fence Tubing

Rounds, squares, rectangles, ovals and over 350 different OD’s company wide 


.605” up to 6.137”


.75 x .75 up to 5.25”


.321” x 1.048” up to 3” x 6” RC


 .227” x 1.176”

up to 4.650” x 5.694 DOV


LJT also offers Hexagon & Triangle Shapes

As a steel fence tubing supplier, we are proud to offer our services to a wide range of industries.  We have provided traditional round steel fence posts, as well as square & rectangular fence tubing to a wide variety of industries including: Solar, Automotive, Fencing, Carport Structures, Roller Conveyors, Garage Door Suppliers, Signpost Suppliers, Structural Buildings, ATV Lots, Lawn Mower Lots, Boat Trailers, Store Display Fixtures, Livestock Farms, Oil Drilling Tools, Furniture Structures, “ROPS” Roll Over Protection, Storage Racks, and Service Center Tubing.

Have a Question?
Our experts can help

Give us a call at 800-257-6859 or leave us a message.

Ask a Tubing Expert