As noted on the previous page, our roll form machines provide smooth, seamless U Channels that exceed expectations. With sharp contours, tight tolerances and available secondary processes, Roller Die has mastered the U Channel for our customers. Below, you’ll find technical details for our U Channel capabilities.

Standard U Channel Part Dimensions

U Channel Thickness Ranges

.018″ – .194″ (Nominal)

Tolerance Capabilities

Cross-Sectional Standard Tolerances: +/-.031″
Angularity: +/- 1 degree
Straightness: Maximum Deviation of .015″/ft
Twist: Maximum Deviation of 1/4 degree per ft

Length Tolerances

Lengths up to 36″ : +/-.030″
Lengths 36″ to 120″ : +/-.060″
Lengths 120″ to 240″ : +/-.125″
Lengths greater than 240″ : +/-.250″
**Note: In some cases, closer tolerances than the standard (listed above) can be achieved, but may require additional tooling.

In-Line Processes:

  • Pre- and Post-Process Hole Piercings
  • Inline Flying Cutoff Providing Parts Cut to Finished Length
  • Stampings
  • Welding
  • Secondary Punching & Forming Operations
  • Assembly
  • Special Packaging


U Channels are produced with All Types of Finishes, from Standard Commercial Quality Mill Finish to Bright Annealed and Mirror Finishes. Contact us and we’d be happy to adapt your specific needs.