ASTM C955-00a

Standard Specification for Load-Bearing (Transverse and Axial) Steel Studs, Runners (Tracks), and Bracing or Bridging for Screw Application of Gypsum Panel Products and Metal Plaster Bases

SCOPE
1.1 This specification covers steel studs, runners (tracks), and bracing or bridging (with a base metal thickness range of not less than 0.0329 in. (0.836 mm)) for screw application of gypsum panel products and metal plaster bases in load-bearing (transverse and axial) construction assemblies. Steel of lesser thickness shall be permitted in additional engineered products.  
1.2 The values stated in inch-pound units are to be regarded as the standard. The S1 (metric) values given in parentheses are for information purposes only.  
1.3 The following precautionary caveat pertains only to the test method portion, Section 8, of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 09-Sep-2001
• ICS: 91.060.10 - Walls. Partitions. Facades
• Technical Committee: C11 - Gypsum and Related Building Materials and Systems
• Drafting Committee: C11.02 - Specifications and Test Methods for Accessories and Related Products

Relations

• Replaced By: ASTM C955-01 - Standard Specification for Load-Bearing (Transverse and Axial) Steel Studs, Runners (Tracks), and Bracing or Bridging for Screw Application of Gypsum Panel Products and Metal Plaster Bases
• Effective Date: 10-Sep-2001
• Referred By: ASTM C844-15(2021) - Standard Specification for Application of Gypsum Base to Receive<brk/> Gypsum Veneer Plaster
• Effective Date: 10-Sep-2001
• Referred By: ASTM C1280-18 - Standard Specification for Application of Exterior Gypsum Panel Products for Use as Sheathing
• Effective Date: 10-Sep-2001
• Referred By: ASTM C840-20 - Standard Specification for Application and Finishing of Gypsum Board
• Effective Date: 10-Sep-2001
• Referred By: ASTM C754-20 - Standard Specification for Installation of Steel Framing Members to Receive Screw-Attached Gypsum Panel Products
• Effective Date: 10-Sep-2001
• Referred By: ASTM C1513-18 - Standard Specification for Steel Tapping Screws for Cold-Formed Steel Framing Connections
• Effective Date: 10-Sep-2001
• Referred By: ASTM C1007-20 - Standard Specification for Installation of Load Bearing (Transverse and Axial) Steel Studs and Related Accessories
• Effective Date: 10-Sep-2001
• Referred By: ASTM C954-22 - Standard Specification for Steel Drill Screws for the Application of Gypsum Panel Products or Metal Plaster Bases to Steel Studs from 0.033 in. (0.84 mm) to 0.112 in. (2.84 mm) in Thickness
• Effective Date: 10-Sep-2001

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: C 955 – 00a
Standard Specification for
Load-Bearing (Transverse and Axial) Steel Studs, Runners
(Tracks), and Bracing or Bridging for Screw Application of
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Gypsum Panel Products and Metal Plaster Bases
This standard is issued under the fixed designation C 955; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope * 3. Terminology
1.1 This specification covers steel studs, runners (tracks), 3.1 Definitions: Definitions shall be in accordance with
and bracing or bridging (with a base metal thickness range of Terminology C 11.
not less than 0.0329 in. (0.836 mm)) for screw application of 3.2 Definitions of Terms Specific to This Standard:
gypsum panel products and metal plaster bases in load-bearing 3.2.1 members , n—studs, runners, tracks, bracing, bridg-
(transverse and axial) construction assemblies. Steel of lesser ing, accessories or other items manufactured in accordance
thickness shall be permitted in additional engineered products. with this standard.
1.2 The values stated in inch-pound units are to be regarded 3.2.2 structural member, n—a member in a steel framed
as the standard. The SI (metric) values given in parentheses are system in which the loading exceeds any of the following
provided for information purposes only. conditions: a transverse load of 20 lbf/ft (290 N/m) of member
1.3 The following precautionary caveat pertains only to the length, or an axial load, exclusive of sheathing, of 200 lbf (890
test method portion, Section 8, of this specification: This N) per member.
standard does not purport to address all of the safety concerns,
4. Materials and Manufacture
if any, associated with its use. It is the responsibility of the user
4.1 The mechanical properties of the steel shall meet the
of this standard to establish appropriate safety and health
practices and determine the applicability of regulatory limita- requirements of the AISI Specification for the Design of
Cold-Formed Steel Structural Members.
tions prior to use.
4.2 The minimum steel thickness (base steel) shall be not
2. Referenced Documents
less than 0.0329 in. (0.84 mm).
2.1 ASTM Standards: 4.3 Individual measurements before the application of pro-
A 653/A 653M Specification for Steel Sheet, Zinc-Coated tective coating shall be not less than 95 % of the specified
(Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) design thickness.
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by the Hot-Dipped Process 4.4 Members shall have a protective coating conforming to
3
C 36 Specification for Gypsum Wallboard Specification A 653/A 653M, G60 minimum, or equivalent
C 954 Specification for Steel Drill Screws for the Applica- corrosion resistance, or shall have a rust-inhibitive coating
tion of Gypsum Panel Products or Metal Plaster Bases to providing equivalent corrosion resistance.
Steel Studs from 0.033 in. (0.84 mm) to 0.112 in. (2.84 4.5 Edges of members shall be manufactured to minimize
3
mm) in Thickness burrs and sharp edges.
2.2 AISI Standard: 4.6 Factory punch-outs, when provided, shall be located
Specification for the Design of Cold-Formed Steel Struc- along the centerline of the webs of members and shall have
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tural Members center-to-center spacing of not less than 24 in. (610 mm). Web
punch-outs maximum width shall be the lesser of 0.5 times the
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member depth, d, or 2 ⁄2 in. (64 mm). Web punch-out length
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This specification is under the jurisdiction of ASTM Committee C11 on
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shall not exceed 4 ⁄2 in. (114 mm). Minimum distance between
Gypsum and Related Building Materials and Systems and is the direct responsibility
the end of the member and the near edge of the web punch-out
of Subcommittee C11.02 on Specifications and Test Methods for Accessories and
Related Products. shall be 10 in. (254 mm). The size of the factory punch-outs
Current edition approved July 10, 2000. Published September 2000. Originally
shall not exceed the size used in design and the center-to-center
published as C 955 - 81. Last previous edition C 955 - 00.
spacing shall not be less than that used in design.
2
Annual Book of ASTM Standards, Vol 01.06.
3
4.7 The sectional properties of members shall be computed
Annual Book of ASTM Standards, Vol 04.01.
4
Available from the American Iron and Steel Institute, 1000 16th St., N.W.,
in accordance with the AISI Specification for the Design of
Washington, DC 20036.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
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C 955
TABLE 1 Manufacturing Tolerances
Cold-Formed Steel Struc
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