ASTM F2548-06

Standard Specification for Expanded Metal Fence Systems for Security Purposes

ABSTRACT
This specification covers the selection and installation of expanded metal fence systems for applications on new or retrofit fences capable of denying or delaying unwanted access into or out of a commercial, industrial, governmental, or institutional facility as applicable to homeland security, or where the possibility of malevolent incursion is significant. The metal fences can be expanded (Type 1), or expanded and flattened (Type 2); and uncoated (Class 1), hot-dip zinc coated or galvanized (Class 2), or corrosion-resisting steel (Class 3). Fencings shall conform to specified standard sizes and dimensions.
SCOPE
1.1 This specification covers selection and installation of expanded metal fence systems for applications on new or retrofit fences for commercial, industrial, governmental or institutional facilities as applicable to homeland security, or where the possibility of malevolent incursion is significant. See for typical examples of expanded metal fence applications. This type of fence system is not recommended for residential or public recreational facilities such as pools, schools, and kindergartens.
1.2 This specification is intended to guide those responsible for or concerned with the design and installation of an expanded metal fence system capable of denying or delaying unwanted access into or out of an area.
1.3 No recommendation is made or implied here as to the merits of the product from any particular manufacturer. Choice of component selection for the expanded metal system should be made by the writer of the project specification based on their own perception of the products merit and the consequence of a malevolent incursion.
1.4 The values stated in inch-pound units are to be regarded as standard. Any values given in brackets are for information only.
This specification does not purport to address all of the safety and security concerns, if any, associated with homeland security. It is the responsibility of the user of this standard to establish the required and appropriate level of security.

General Information

• Status: Historical
• Publication Date: 31-May-2006
• ICS: 91.090 - External structures
• Technical Committee: F14 - Fences
• Drafting Committee: F14.50 - High Security Fences and Perimeter Barriers

Relations

• Replaced By: ASTM F2548-12 - Standard Specification for Expanded Metal Fence Systems for Security Purposes
• Effective Date: 01-Jul-2012
• Referred By: ASTM F2780-20 - Standard Guide for Design and Construction of Expanded Metal Security Fences and Barriers
• Effective Date: 01-Jun-2006
• Referred By: ASTM F2814-09(2015) - Standard Guide for Design and Construction of Ornamental Steel Picket Fence Systems for Security Purposes
• Effective Date: 01-Jun-2006

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:F2548 −06
StandardSpecification for
Expanded Metal Fence Systems for Security Purposes
This standard is issued under the fixed designation F2548; 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 B117 Practice for Operating Salt Spray (Fog) Apparatus
F934 Specification for Colors for Polymer-Coated Chain
1.1 This specification covers selection and installation of
Link Fence Materials
expanded metal fence systems for applications on new or
F1267 Specification for Metal, Expanded, Steel
retrofit fences for commercial, industrial, governmental or
F1043 Specification for Strength and Protective Coatings on
institutional facilities as applicable to homeland security, or
Steel Industrial Fence Framework
wherethepossibilityofmalevolentincursionissignificant.See
F1083 Specification for Pipe, Steel, Hot-Dipped Zinc-
Fig. 1 for typical examples of expanded metal fence applica-
Coated (Galvanized) Welded, for Fence Structures
tions. This type of fence system is not recommended for
residential or public recreational facilities such as pools, 2.2 Chain Link Fence Manufacturers Institute (CLFMI)
schools, and kindergartens. Standard:
WLG2445 CLFMI Guide for the Selection of Line Post
1.2 This specification is intended to guide those responsible
Spacings
for or concerned with the design and installation of an
expanded metal fence system capable of denying or delaying
3. Terminology
unwanted access into or out of an area.
3.1 Definitions of Terms Specific to This Standard:
1.3 No recommendation is made or implied here as to the
3.1.1 expanded metal fence system—combines expanded
merits of the product from any particular manufacturer. Choice
metal panels and structural framework posts and rails, if
of component selection for the expanded metal system should
required with accessories and fasteners, assembled and evalu-
bemadebythewriteroftheprojectspecificationbasedontheir
ated as a complete system. Fig. 1 shows typical applications.
own perception of the product’s merit and the consequence of
a malevolent incursion.
3.1.2 expanded metal panel—element used as filler for the
fence system. The following terms are used to further define
1.4 The values stated in inch-pound units are to be regarded
characteristics of the expanded metal panels (see Fig. 2 and
as standard. Any values given in brackets are for information
only. Fig. 3).
1.5 This specification does not purport to address all of the
3.1.3 fitting—any type of formed metal with the intent of
safety and security concerns, if any, associated with homeland
securing mesh filler to a framework.
security. It is the responsibility of the user of this standard to
3.1.4 flattened expanded metal (F)—Expanded metal which
establish the required and appropriate level of security.
has been cold rolled leaving a flat, smooth surface.
2. Referenced Documents
3.1.5 LWD—long way of diamond, nominal dimension (see
Fig. 2).
2.1 ASTM Standards:
A123/A123M Specification for Zinc (Hot-Dip Galvanized)
3.1.6 regular (raised) expanded metal (R) —Expanded
Coatings on Iron and Steel Products
metal as it comes from the press after being simultaneously slit
A307 Specification for Carbon Steel Bolts and Studs, 60 000
and stretched having the strands and bonds form a uniform
PSI Tensile Strength
angle to the original plane of the solid sheet from which it was
formedcreatinganopenmeshdiamondmakingonecontinuous
This specification is under the jurisdiction of ASTM Committee F14 on panel that cannot unravel.
Fencing and is the direct responsibility of Subcommittee F14.50 on High Security
3.1.7 SWD—short way of diamond, nominal dimension (see
Fences and Perimeter Barriers.
Current edition approved June 1, 2006. Published June 2006. DOI: 10.1520/
Fig. 2).
F2548-06.
3.1.8 strand thickness—thickness of base metal.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
3.1.9 strand width—amount of material fed under the die to
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. produce one strand.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F2548−06
FIG. 1Expanded Metal Fencing Applications
FIG. 2Diamond Description—Regular and Flattened
FIG. 3Mesh Description—Standard and Reversed Diamond
4. Classification 5. Ordering/Specifying Information
5.1 When ordering or specifying expanded metal fence
4.1 Expanded metal used on fences for security applications
shall meet the material requirements of Specification F1267. systems for security applications, the appropriate mesh type,
mesh description, fence height, post size, post spacing, allow-
Expanded metal referenced in this specification is classified by
types and classes as follows: able mesh to framework attachment methods, and finish should
all be defined to ensure that expanded metal panels and all
4.2 Type
associated system components will work compatibly in the
4.2.1 Type 1—Expanded (see Fig. 2 – Type 1)
total system installation.
4.2.2 Type 2—Expanded and flattened (see Fig. 2 – Type 2)
6. Materials
NOTE 1—While it is not the intent of this specification to limit the
selection of expanded metal “Type” to a specific fence application,
6.1 Expanded Metal Panels
historical practice is a relevant factor to consider during the selection
6.1.1 Panels shall be manufactured in accordance with the
process. Construction of new expanded metal fence systems and retrofit of
requirements and within the allowable tolerances of Specifica-
chain link fences historically involved the use of Type 1 expanded metal
tion F1267. Table 1 and Fig. 4 show selection options of
panels; retrofit of ornamental picket fences historically involved the use of
Type 2 expanded metal panels. expanded metal panels for use in security applications.
4.3 Class 6.2 Acceptable panel types shall conform to these minimum
4.3.1 Class 1—Uncoated requirements.
4.3.2 Class 2—Hot-dip zinc coated (galvanized) 6.2.1 The minimum allowable weight per square foot for
4.3.3 Class 3—Corrosion-resisting steel any expanded metal panel specified or used in security fence
F2548−06
TABLE 1 Panel Description
Panels Used in Security Fence Applications
Description
1 1 3 3 1
⁄2 in.–13R ⁄2 in.–13R (.188) ⁄4 in.–9R ⁄4 in.–9F 1 in.–7R (.240) 1 ⁄2 in.— 6R
Width of Panel (ft) 3 − 6 3 − 6 3 − 6 3 − 6 3 − 5 3 − 5
Height of Panel (ft 6 − 12 6 − 12 6 − 12 6 − 12 6 − 12 6 − 12
Diamond Dimensions (in.) SWD by LWD 0.500 by 1.20 0.500 by 1.20 0.923 by 2.00 0.923 by 2.10 1.00 by 2.40 1.330 by 3.00
Percent Open Area 57 % 25 % 68 % 63 % 52 % 63 %
Strand thickness (in.) 0.092 0.09 0.134 0.120 0.170 0.198
Strand Width (in.) 0.096 0.188 0.150 0.164 0.240 0.203
Weight per ft 1.47 2.82 1.80 1.71 3.50 2.50
Weight galvanized per ft 1.73 3.1 1.95 1.86 3.70 2.73
system applications shall not be less than nominal 1.47 lbs per 6.6.2 Fittings used in securing mesh panels to the frame-
square foot prior to galvanizing or color coating. work shall have a strength that closely approximates the load
strength of the specified threaded fastener (see Specification
6.2.2 No expanded metal specifie
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