Code Approvals & Performance Standards
ClarkWestern ULTRASTEEL® Framing meets or exceeds these applicable performance standards.
AISI “North American Specification for the Design of
Cold-Formed Steel Structural Members, 2001”
ASTM American Society for Testing and Materials
C645 “Standard Specification for Non-Structural Steel Framing Members”
C754 “Standard Specification for Installation of Steel Framing Members to Receive Screw-Attached Gypsum Panel Products”
E119 “Standard Test Methods for Fire Tests of Building Construction and Materials”
E72 “Standard Test Methods of Conducting Strength Tests of Panels for
Building Construction”
E90 “Standard Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements”
UL® Underwriters Laboratories Testing Standard
UL® 263 “Fire Tests of Building Construction and Materials”**
UL® Underwriters Laboratories CLARKWESTERN UltraSTEEL® Framing Classification
Wall Design No. V450 in the UL® Fire Resistance Directory
Steel Framing Members Fire Resistance Classification
See UL® Fire Resistance Directory
SSMA Steel Stud Manufacturers Association*
Additional Code Approvals
ICC - ES ESR 1977
Architectural Testing, Inc. CCRR - 0109
NYC MEA 300-05-M
Independent Product Certification
Sound Ratings - Riverbank Acoustical Laboratories
Fire Testing - Underwriters Laboratories Inc.
Structural Testing - Progressive Engineers Inc.
Structural Analysis - Construction Technologies Laboratory
Technical Support
Technical support is available by contacting CLARKWESTERN at 1-888-437-3244.
*CLARKWESTERN UltraSTEEL® Framing meets or exceeds all the requirements of SSMA except minimum decimal standards because language in SSMA does not account for, or address effective thickness as a result of manufacturing technology.
**UL® and UL® Design are service marks of Underwriters Laboratories, Inc.
Products manufactured using the UltraSTEEL® process are protected by granted USA Patents (Nos. 6,183,879 and 5,689,990) and granted Canadian Patent (No. 2,149,914/1993) together with design registration. UltraSTEEL® is a Registered Trademark of Hadley Industries plc.
