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CircleTrak® provides a superior solution for those situations requiring the construction of a curved wall or arched ceiling. Its unique design not only allows for a variety of different radius shapes but also provides for the ability to form curves by hand. A flat strap in one leg maintains the curved shape of the wall until permanent installation is completed. No additional specialized tools are required to install CircleTrak (aside from standard screws and a drill), and track curvature can easily be re-set if necessary.


  • Simplified installation
  • Increases productivity
  • Easily bends by hand
  • No customized tools required
  • Maintains its shape during installation
  • Quickly resets after initial installation
  • Can Achieve an 8.75" inside corner radius
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Product Information

ASTM A1003/A1003M Structural Grade 33 (230) Type H, ST33H (ST230H): 33ksi (230MPa) minimum yield strength, 45ksi (310MPa) minimum tensile strength, 33mil minimum thickness (20 gauge, 0.0346" design thickness) with ASTM A653/A653M G60 (Z180) hot dipped galvanized coating
Product Designation Thickness
Mils Gauge Design Thickness
in mm
CircleTrak® 33 20 0.0346 0.878

Order Information
Designation Lbs/Piece Qty/Skid Lbs/Skid
250CT125-33 9 100 900
350CT125-33 10 100 1,000
362CT125-33 10 100 1,000
550CT125-33 11 98 1,078
600CT125-33 12 98 1,076


CircleTrak is available in 10' lengths and is designated by inside web depth x 100, then style (CT), followed by leg length and then material thickness in mils.

Example: 6" inside web depth
Designate: 600CT125-33

CircleTrak_Dimensions CircleTrak_Inside_Bend_Radius
TSN's Product Catalogs are an essential resource for the design of cold formed steel.  Developed by Engineers, the catalogs contain design data for members, connectors, and fasteners.
CircleTrak® and the rest of TSN's Specialty Products can be found in the following Catalogs:


TSN Connection
Technical Catalog


TSN Connection
Order Catalog

For a full list of our product catalogs, specification sections, inspection checklists, and research reports please click here.