Product Specs & Substitution Forms

Achitectural Specifications

Specifying ProSTUD® & ProTRAK®

Specifying ClarkDietrich's ProSTUD Drywall Framing system in your Architectural Specifications opens the door for contractors to utilize our superior product line. By including ProSTUD in your project specification, you eliminate the time, effort and cost involved with the substitution and approval process.

The suggested specification language provided below provides a framework to include ClarkDietrich Building Systems as a preferred Manufacturer for Cold-Formed Metal Framing Systems. This language will not replace what you currently have in your project specifications, it will only add to it, to ensure ProSTUD is approved on your next project.

 

ClarkDietrich's MasterSpec Full Length Specifications with ProSTUD can be found by Clicking Here.

 

 

How to specify ProSTUD & ProTRAK Drywall Framing System in your Architectural Specifications:

1.X   QUALITY ASSURANCE

  1. Fire-Test-Response Characteristics: For fire-resistance-rated assemblies that incorporate non-structural steel framing, provide materials and construction identical to those tested in assembly indicated according to ASTM E119 by an independent testing agency. Products used in the assembly shall carry a classification label from Underwriters Laboratories (UL®).
    (Retain paragraph below where framing is part of STC-rated assemblies indicated in the design designations of specific assemblies on drawings.)
  2. STC-Rated Assemblies:  For STC-rated assemblies, provide materials and construction identical to those tested in assembly indicated according to ASTM E90 and classified according to ASTM E 413 by an independent testing agency.

2.3   COMPONENTS

  1. Non-Structural Studs: Cold-formed galvanized steel C-studs, ClarkDietrich ProSTUD drywall studs, in conformance with ASTM C-645 for conditions indicated below:
  1. Flange Length: 1 1/4 inch (32mm) 125 flange.
  2. Web Depth: As indicated on drawings.
  3. Designation: ProSTUD 25 (25ga equivalent drywall stud) 50ksi
    Minimum Thickness: 0.0150 inches (0.3810mm)
    Minimum Design Thickness: 0.0158 inches (0.4013mm)
  4. Designation: ProSTUD 20 (20ga equivalent drywall stud) 65ksi
    Minimum Thickness: 0.019 inches (0.4826mm)
    Minimum Design Thickness: 0.020 inches (0.508mm)
    (For additional ProSTUD thicknesses to meet nonstandard specifications see ProSTUD Catalog)
  1. Non-structural Track: Cold-Formed galvanized steel runner tracks, ClarkDietrich ProTRAK drywall track, in conformance with ASTM C-645 for conditions indicated below:
  1. Flange Length: 1 1/4 inch (32 mm) T125 flange.
  2. Web Depth: Track web to match stud web size.
  3. Minimum Material Thickness: Track thickness to match wall stud thickness.
  1. “EQ” (Equivalent Gauge Thickness) Steel Studs and Runners:  Members that can show certified third party testing with gypsum board in accordance with ICC ES AC86 (Approved February 2010 Effective March 1, 2010) need not meet the minimum thickness limitation or minimum section properties set forth in ASTM C 645-09.  The submission of a recognized evaluation report is acceptable to show conformance to this requirement.

 

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