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RedHeader PRO™ Rough Opening System

provides versatility for walls and ceilings contractors

Designed to replace conventional boxed headers and built-up jambs and provide better results in half the time.

RedHeader PRO™ Framing system

This system provides versatility for walls and ceilings contractors. Most notably, RedHeader PRO uses the same-sized member for the jamb and header. This allows for even greater functionality, while still reducing the amount of material by up to 50 percent. RedHeader PRO also eliminates “capped” members, which allows fasteners to drive through only a single thickness of steel.

Contractors will also notice that the top of the header is open and the header and jamb assembly are flush. This design allows for easy install of the insulation while virtually eliminating the need to pre-insulate headers prior to installation.

The new HDSC Header Bracket uses less steel than the original blue Drop ’N Lock™ Clip. The combination of a more economical shape and the elimination of the painting process is also in keeping with our green initiative.

RedHeader PRO™ can cut your labor time in half.

It’s designed to replace conventional boxed headers and built-up jambs and provide better results in half the time. One-piece headers and jambs eliminate the additional studs, track and screws required to frame conventional rough openings. Headers and jambs are also pre-cut to specified lengths to eliminate field cutting.

Construction Advantages:

  • Eliminates built-up jambs and boxed or lay-in headers.
  • Reduces material pieces and screws by up to 50%.
  • The header easily slides into the HDSC Clip.
  • Eliminates "capped" members, allowing drywall screws to drive through only one thickness of material.
  • Header stud allows for easier fit of rigid insulation without additional cutting.
  • Opened jamb stud does not require pre-insulating.
  • SAVES LABOR in installation and handling!

RedHeader PRO Stud Profile information

Product Code Web Size
Return Lip
Mils (ga)
362PRO300 3-5/8" 3" 1" 33, 43, 54, 68 or 97
362PRO350 3-5/8" 3-1/2" 1" 54, 68 or 97
400PRO300 4" 3" 1" 33, 43, 54, 68 or 97
400PRO350 4" 3-1/2" 1" 54, 68 or 97
600PRO300 6" 3" 1" 33, 43, 54, 68 or 97
600PRO350 6" 3-1/2" 1" 54, 68 or 97
800PRO300 8" 3" 1" 33, 43, 54, 68 or 97
800PRO350 8" 3-1/2" 1" 54, 68 or 97


  • 33mils (20ga) 33 ksi
  • 43mils (18ga) 33 ksi
  • 54mils (16ga) 50 ksi
  • 68mils (14ga) 50 ksi
  • 97mils (12ga) 50 ksi
    All material CP60 (CP90 available)

Header lengths should be ordered 1/2" shorter than opening width to fit inside HDSC Clips (Header Length = Inside of Jamb to Inside of Jamb Minus 1/2")

Jamb Profile


HDSC Header Bracket (HDSC)

The perfect complement to the RedHeader PRO™ and HDS® Framing system. This simple, yet innovative header bracket turns curtain-wall header installation from a two-person job into a one-person job. This unique, pre-punched clip also eliminates surface head fastener buildup that can create finishing challenges.

Visit the HDSC Header Bracket Product Page For more infomation

Header Cripple Stud Clip

Why use a Cripple Stud Clip with the RedHeader Pro or HDS System?

  • Eliminates the header track material and is a more economical alternative
  • Extra long return legs on RedHeader PRO or HDS allows for ease of attachment
  • Top of header is open, allowing for easy install of the insulation. No need to "pre-insulate" headers prior to installation

Visit the Header Cripple Stud Clip Product Page For more infomation

Limiting Heights

Forget Using Complex Tables
Multiple tables (Header, Jamb and Header Clip Tables) for Opening Systems need to be cross referenced and are limited to keep them simplified.

Try the ClarkDietrich iTools Opening Framing Lookup Tool

  • Interactive user filters for opening type and design requirements
  • Checks systems that work together as required by design
  • Creates a Design & Submittal Package​​

If you would like for our Tech Team to help with choosing the right RedHeader PRO system, submit an Opening Framing Sizing Webform to ClarkDietrich Technical Services.


Code Approvals & Performance Standards

  • AISI S100-16 (2020) w/S2-20 North American Specification for the Design of Cold-Formed Steel Structural Members
  • AISI S240-20 North American Standard for Cold-Formed Steel Structural Framing
    • (Compliant to ASTM C955 , but IBC replaced with AISI S200 in IBC 2015, AISI S240 in IBC 2018)
    • Section A3 Material - Chemical & mechanical requirements (Referencing ASTM A1003/A1003M)
    • Section A4 Corrosion Protection (Referencing ASTM A653/A653M)
    • Section C Installation - (Referencing ASTM C1007)
  • IBC 2021 International Building Code
  • IAPMO ER-0723 Evaluation Report for HDS and RedHeader Pro
  • SDS For ASTM A1003 Steel Framing Products For Interior Framing, Exterior Framing and Clips/Accessories

Product Substitution Forms

To simplify the Product Substitution Request process when ClarkDietrich’s Products are not listed in the Architectural Specification, select one of the CSI Forms in our ClarkDietrich Substitution Request Forms Page to help streamline the procedure.

For creating product submittals to attach to these forms use ClarkDietrich's SubmittalPro Product Submittal System.

ClarkDietrich SubmittalPro®

The Fastest way to find product information

Submittal sheets for the exact product you're looking for can be created by using ClarkDietrich's SubmittalPro® Product Submittal System.

Most common redheader pro submittals can be found below:

Size / Thickness Header or Jamb Stud
3-5/8" 33mils (20ga) 362PRO300-33 (33ksi, CP60)
6" 33mils (20ga) 600PRO300-33 (33ksi, CP60)
3-5/8" 54mils (16ga) 362PRO300-54 (50ksi, CP60)
6" 54mils (16ga) 600PRO300-54 (50ksi, CP60)