ASTM C1032-18

Standard Specification for Woven Wire Plaster Base

ABSTRACT
This specification covers woven wire plaster base, flat or self-furring, with or without stiffener wires, and with or without backing, designed for use as a base to receive gypsum or Portland cement based plaster. Backing shall allow lapping of wire-to-wire and backing-to-backing of one mesh at ends and edges and shall have a minimum tensile breaking strength. The wire shall be zinc-coated (galvanized). The weight, size, and diameter of the wire are specified.
SCOPE
1.1 This specification covers woven wire plaster base, flat or self-furring, with or without stiffener wires, and with or without factory-attached water-resistive barrier, designed for use as a base to receive gypsum or portland cement based plaster.  
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.3 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Published
• Publication Date: 30-Sep-2018
• 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

• Replaces: ASTM C1032-14 - Standard Specification for Woven Wire Plaster Base
• Effective Date: 01-Oct-2018
• Refers: ASTM C11-18a - Standard Terminology Relating to Gypsum and Related Building Materials and Systems
• Effective Date: 01-Oct-2018
• Refers: ASTM C11-18 - Standard Terminology Relating to Gypsum and Related Building Materials and Systems
• Effective Date: 01-Jun-2018
• Refers: ASTM C11-17a - Standard Terminology Relating to Gypsum and Related Building Materials and Systems
• Effective Date: 01-Oct-2017
• Refers: ASTM C11-17 - Standard Terminology Relating to Gypsum and Related Building Materials and Systems
• Effective Date: 15-May-2017
• Refers: ASTM C11-16 - Standard Terminology Relating to Gypsum and Related Building Materials and Systems
• Effective Date: 15-May-2016
• Refers: ASTM C11-15a - Standard Terminology Relating to Gypsum and Related Building Materials and Systems
• Effective Date: 01-Oct-2015
• Refers: ASTM C11-15 - Standard Terminology Relating to Gypsum and Related Building Materials and Systems
• Effective Date: 01-Apr-2015
• Refers: ASTM C11-13 - Standard Terminology Relating to Gypsum and Related Building Materials and Systems
• Effective Date: 01-Mar-2013
• Refers: ASTM E2556/E2556M-10 - Standard Specification for Vapor Permeable Flexible Sheet Water-Resistive Barriers Intended for Mechanical Attachment
• Effective Date: 15-Oct-2010
• Refers: ASTM C11-10a - Standard Terminology Relating to Gypsum and Related Building Materials and Systems
• Effective Date: 01-Aug-2010
• Refers: ASTM C11-10 - Standard Terminology Relating to Gypsum and Related Building Materials and Systems
• Effective Date: 01-Jan-2010
• Refers: ASTM E2556/E2556M-09 - Standard Specification for Vapor Permeable Flexible Sheet Water-Resistive Barriers Intended for Mechanical Attachment
• Effective Date: 01-Nov-2009
• Refers: ASTM C11-08c - Standard Terminology Relating to Gypsum and Related Building Materials and Systems
• Effective Date: 01-Aug-2008
• Refers: ASTM C11-08b - Standard Terminology Relating to Gypsum and Related Building Materials and Systems
• Effective Date: 01-May-2008

Overview

ASTM C1032-18: Standard Specification for Woven Wire Plaster Base establishes the requirements for woven wire mesh products designed as a base for gypsum or Portland cement-based plaster. Developed by ASTM International, this specification addresses both flat and self-furring types of plaster base, with or without stiffener wires and factory-attached water-resistive barriers. The standard supports safe, effective, and durable installations in residential, commercial, and industrial construction.

Woven wire plaster base products covered by this standard are galvanized for corrosion resistance and must meet defined criteria for mesh size, wire diameter, weight, and physical properties. These bases provide mechanical support for plaster, ensuring proper adhesion and system longevity in interior and exterior wall and ceiling assemblies.

Key Topics

• Product Types: The specification covers both flat and self-furring woven wire plaster bases, with optional features such as stiffener wires and backing (factory-attached water-resistive barriers).
• Material Requirements: The wire used must be zinc-coated (galvanized) per ASTM A641/A641M, ensuring corrosion resistance and long service life.
• Backing & Water-Resistive Barriers: Where provided, the backing meets requirements for lapping and tensile strength, facilitating effective installation and protection against moisture intrusion.
• Dimensions & Tolerances: Requirements specify mesh opening sizes, minimum weights, and tolerances for width, length, and wire diameter, ensuring product consistency.
• Physical Properties: Includes minimum tensile breaking strength for the water-resistive barrier and lapping provisions to support plaster embedment and performance.
• Inspection & Certification: The standard outlines procedures for inspection, rejection, certification, packaging, and marking, helping stakeholders verify compliance.

Applications

Woven wire plaster base specified under ASTM C1032-18 is widely used in:

• Stucco Systems: Serving as a base for Portland cement plaster (stucco) on exterior walls, enabling proper bonding and crack resistance.
• Gypsum Plaster Applications: Providing support for interior plasters in renovation and new construction, including ceilings and partition walls.
• Water-Resistive Barrier Integration: Self-furring mesh with factory-attached water-resistive barriers streamlines installation and enhances moisture protection, critical in exterior wall assemblies.
• Complex Surfaces: Flexible mesh adapts to curved or irregular surfaces, supporting creative architectural designs.
• Fire and Moisture Control: When used with compliant backings, the system meets key performance goals for fire resistance and water repellency in building envelopes.

The standard ensures products reliably meet performance criteria, supporting safe and sustainable building practices in a range of environments.

Related Standards

Several other national and international standards complement or are referenced within ASTM C1032-18, including:

• ASTM A641/A641M: Specification for Zinc-Coated (Galvanized) Carbon Steel Wire, which describes the galvanizing requirements for wires used in plaster base products.
• ASTM C11: Terminology Relating to Gypsum and Related Building Materials and Systems, for consistent definitions throughout the industry.
• ASTM E2556/E2556M: Specification for Vapor Permeable Flexible Sheet Water-Resistive Barriers, relevant for water-resistive backing materials.
• Federal Specification UU-B-790a: Covers Kraft building paper used as backing.
• Federal Specification UU-P-31 B/171: Establishes tensile breaking strength tests for backing materials.

Adherence to ASTM C1032-18 helps contractors, builders, and designers ensure plaster installations perform to expectation, offering durability, protection, and compliance with recognized building codes.

Standards Content (Sample)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation:C1032 −18
Standard Specification for
Woven Wire Plaster Base
This standard is issued under the fixed designation C1032; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope* 2.2 Federal Specifications:
UU-B-790a Building Paper, Vegetable Fiber: Kraft,
1.1 Thisspecificationcoverswovenwireplasterbase,flator
Waterproofed, Water Repellent and Fire Resistant
self-furring, with or without stiffener wires, and with or 3
UU-P-31 B/171 Tensile Breaking Strength (Dry)
without factory-attached water-resistive barrier, designed for
use as a base to receive gypsum or portland cement based
3. Terminology
plaster.
3.1 Definitions—Definitions shall be in accordance with
1.2 The values stated in inch-pound units are to be regarded Terminology C11.
as standard. The values given in parentheses are mathematical
4. Material
conversions to SI units that are provided for information only
and are not considered standard.
4.1 In accordance with Specification A641/A641M and
Table 1.
1.3 The text of this standard references notes and footnotes
which provide explanatory material. These notes and footnotes
4.2 Water-resistive Barrier—Compliant with Federal Speci-
(excluding those in tables and figures) shall not be considered fication UU-B-790a or ASTM Specification E2556/E2556M.
as requirements of the standard.
4.3 Kraft Building Paper,FederalSpecificationUU-B-790a.
1.4 This international standard was developed in accor-
5. Physical Properties
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
5.1 Water-resistive Barrier:
Development of International Standards, Guides and Recom-
5.1.1 Factory-attachedwater-resistivebarriershallprovidea
mendations issued by the World Trade Organization Technical
onemeshwiretowirelapjointatoneendandoneedgeofeach
Barriers to Trade (TBT) Committee. flat sheet or roll.Attachment of the water-resistive barrier shall
allow lapping of wire-to-wire and water-resistive barrier to
2. Referenced Documents water-resistive barrier of one mesh at ends and edges and shall
permit full embedment in not less than ⁄4 in. (6.4 mm) of
2.1 ASTM Standards:
plasterofnotlessthanonehalfthetotallengthandwidthofthe
A641/A641M Specification for Zinc–Coated (Galvanized)
wire.
Carbon Steel Wire
5.1.2 Factory-attached water-resistive barrier shall have a
C11 Terminology Relating to Gypsum and Related Building
minimum tensile breaking strength (dry) of 20 lbf/in.
Materials and Systems
(3.5 kN⁄m) width, as tested in accordance with Federal Speci-
E2556/E2556M Specification for Vapor Permeable Flexible
fication UU-P-31 B, Method 171.
Sheet Water-Resistive Barriers Intended for Mechanical
Attachment
6. Dimensions, Weight, and Permissible Variations
6.1 Openings:
6.1.1 Woven wire plaster base shall be fabricated to provide
This specification is under the jurisdiction of ASTM Committee C11 on
thesizeofopeningsinaccordancewithTable1,exceptthatany
Gypsum and Related Building Materials and Systems and is the direct responsibility
2 2
single opening shall be not more than 3.0 in. (1935.5 mm ).
of Subcommittee C11.02 on Specifications and Test Methods for Accessories and
6.1.2 Wire diameter for opening size shall be in accordance
Related Products.
Current edition approved Oct. 1, 2018. Published October 2018. Originally
with Table 1.
approved in 1985. Last previous edition approved in 2014 as C1032 – 14. DOI:
10.1520/C1032-18.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM .Available from U.S. Government Printing Office Superintendent of
Standards volume information, refer to the standard’s Document Summary page on Documents, 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401,
the ASTM website. http://www.access.gpo.gov.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
C1032−18
TABLE 1 Nominal Diameter and Minimum Weight for Size of
8. Rejection and Rehearing
Opening
8.1 Material that fails to conform to the requirements of this
2 2 A
Opening Size, in. (mm) Diameter, in. (mm) Weight, lb/yd (kg/m )
specification shall be reported to the producer or supplier
1 (25.4) 0.035 (0.89) 0.86 (0.466)
1 ⁄2 (38.0) 0.051 (1.30) 1.40 (0.760) promptly and in writing. The notice of rejection shall contain a
A
statement documenting how the product
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: C1032 − 14 C1032 − 18
Standard Specification for
Woven Wire Plaster Base
This standard is issued under the fixed designation C1032; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope*
1.1 This specification covers woven wire plaster base, flat or self-furring, with or without stiffener wires, and with or without
backing, factory-attached water-resistive barrier, designed for use as a base to receive gypsum or portland cement based plaster.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
1.3 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes
(excluding those in tables and figures) shall not be considered as requirements of the standard.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2.1 ASTM Standards:
A641/A641M Specification for Zinc–Coated (Galvanized) Carbon Steel Wire
C11 Terminology Relating to Gypsum and Related Building Materials and Systems
E2556/E2556M Specification for Vapor Permeable Flexible Sheet Water-Resistive Barriers Intended for Mechanical Attachment
2.2 Federal Specifications:
UU-B-790a Building Paper, Vegetable Fiber: Kraft, Waterproofed, Water Repellent and Fire Resistant
UU-P-31 B/171 Tensile Breaking Strength (Dry)
3. Terminology
3.1 Definitions—Definitions shall be in accordance with Terminology C11.
4. Material
4.1 In accordance with Specification A641/A641M and Table 1.
4.2 Water-resistive Barrier—Compliant with Federal Specification UU-B-790a or ASTM Specification E2556/E2556M.
4.3 Kraft Building Paper, Federal Specification UU-B-790a.
5. Physical Properties
5.1 Backing: Water-resistive Barrier:
5.1.1 Factory attached backingFactory-attached water-resistive barrier shall provide a one mesh wire to wire lap joint at one end
and one edge of each flat sheet or roll. Attachment of the backing water-resistive barrier shall allow lapping of wire-to-wire and
backing-to-backing water-resistive barrier to water-resistive barrier of one mesh at ends and edges and shall permit full embedment
in not less than ⁄4 in. (6.4 mm) of plaster of not less than one half the total length and width of the wire.
This specification is under the jurisdiction of ASTM Committee C11 on Gypsum and Related Building Materials and Systems and is the direct responsibility of
Subcommittee C11.02 on Specifications and Test Methods for Accessories and Related Products.
Current edition approved June 1, 2014Oct. 1, 2018. Published June 2014October 2018. Originally approved in 1985. Last previous edition approved in 20112014 as
C1032 – 06 (2011).C1032 – 14. DOI: 10.1520/C1032-14.10.1520/C1032-18.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
.Available from U.S. Government Printing Office Superintendent of Documents, 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http://
www.access.gpo.gov.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
C1032 − 18
TABLE 1 Nominal Diameter and Minimum Weight for Size of
Opening
Opening Size, Diameter, Weight,
2 2 A
in. (mm) in. (mm) lb/yd (kg/m )
2 2 A
Opening Size, in. (mm) Diameter, in. (mm) Weight, lb/yd (kg/m )
1 (25.4) 0.035 (0.89) 0.86 (0.466)
1 (25.4) 0.035 (0.89) 0.86 (0.466)
1 ⁄2 (38.0) 0.051 (1.30) 1.40 (0.760)
A
The weight of attached backing is not included.
5.1.2 Backing Factory-attached water-resistive barrier shall have a minimum tensile breaking strength (dry) of 20 lbf/in.
(3.5(3.5 kN kN/m) ⁄m) width, as tested in accordance with Federal Specification UU-P-31 B, Method 171.
6. Dimensions, Weight, and Permissible Variations
6.1 Openings:
6.1.1 Woven wire plaster base shall be fabricated to provide the size of openings in accordance with Table 1, except that any
2 2
single opening shall be not more than 3.0 in. (1935.5 mm ).
6.1.2 Wire diameter for opening size shall be in accordance with Table 1.
6.2 Diameter tolerance for galvanized wire shall be in accordance with
...