Chain Link Fences and Gates-4.1.6 Section 32 31 13 - Chain Link Fences and Gates.docx
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- Solicitation number
- B27000130
- Issued by
- Hawaii County, Hawaii
About this file
This is a technical specification document for chain link fences and gates installation prepared by the Department of Hawaiian Home Lands (DHHL), Land Management Division, for a project at the South Kohala Distribution Road property and three nearby burial site lots in Hawaii. The project encompasses the installation of approximately 1,365 linear feet of 6-foot nominal height chain link fencing along the western boundary of the primary property, with additional fencing required at three burial lots to be field-verified by the contractor, along with associated gate installations. The specification establishes detailed requirements for fence framework, chain-link fabric, accessories, and concrete foundations, with line posts spaced at intervals not exceeding 10 feet and terminal, corner, and gate posts constructed to specified diameters. Materials must comply with ASTM standards for galvanized steel pipe, zinc-coated wire fabric, and welded construction, with approved manufacturers including Anchor Fence Inc. and Cyclone Inc. or approved equivalents.
Installation must be performed in accordance with ASTM F567 standards and CLFMI guidelines, requiring proper excavation, concrete foundation placement with footings extending 1 inch above grade, and fabric positioning 2 inches above finished grade. The specification mandates plumb installation tolerances of 1/4 inch maximum variation and 1 inch maximum offset from true position, with fabric attachment to posts and rails using tie wire at maximum 18-inch centers and tension bars. Concrete foundations must cure for 7 days before materials are installed on posts, and all components must be hot-dip galvanized with touch-up primer provisions for galvanized surfaces. Gate hardware shall include fork latches with gravity drop rods and 180-degree hinges, with existing fence connections to be made at the Picnic Area via end post installation and clear openings not exceeding 6 inches unless approved by the Consultant.
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Text version
SECTION 32 31 13
CHAIN LINK FENCES AND GATES
GENERAL
Section includes Fence framework, chain-link fabric, and accessories; excavation for post bases; concrete foundation for posts.
Related Sections:
Section 03 30 00 – Cast-In-Place Concrete: Concrete anchorage for posts.
Section 31 00 00 – Earthwork: Excavation for post bases.
REFERENCES
ASTM A392-11a(2017) – Standard Specification for Zinc-Coated Steel Chain-Link Fence Fabric.
ASTM F567-14a – Standard Practice for Installation of Chain-Link Fence.
ASTM F900-11(2017) – Standard Specification for Industrial and Commercial Steel Swing Gates.
ASTM F934-96(2017) – Standard Specification for Standard Colors for Polymer-Coated Chain Link Fence Materials.
ASTM F1083-18 – Standard Specification for Pipe, Steel, Hot-Dipped Zinc-Coated (Galvanized) Welded, for Fence Structures.
CLFMI-FIG-0111-14 – Field Inspection Guide, CLFMI (Chain Link Fence Manufacturers Institute).
CLF-PM0610-17 – Product Manual, CLFMI (Chain Link Fence Manufacturers Institute).
SYSTEM DESCRIPTION
Fence Height: 6 feet nominal.
Line Post Spacing: At intervals not exceeding 10 feet.
SUBMITTALS
Section 01 33 00 – Submittal Procedures: Submittal procedures.
Shop Drawings: Indicate plan layout, spacing of components, post foundation dimensions, hardware anchorage, gates, and schedule of components.
Product Data: Submit data on fabric, posts, accessories, fittings and hardware.
QUALITY ASSURANCE
Section 01 40 00 – Quality Requirements.
Supply material in accordance with CLFMI – Product Manual.
Perform installation in accordance with ASTM F567.
Perform quality assurance in accordance with CLFMI-FIG-0111-14 – Field Inspection Guide.
DELIVERY, STORAGE AND HANDLING
Section 01 60 00 – Product Requirements: Product storage and handling requirements.
Fence fabric and accessories shall be delivered to the construction site in packed cartons or firmly tied rolls.
Each package shall be identified and shall bear the manufacturer’s name.
Store fence fabric and accessories in a secure and dry place.
PRODUCTS
MANUFACTURERS
Manufacturers:
Anchor Fence Inc.
Cyclone Inc.
Substitutions: Section 01 60 00 – Product Requirements: or approved equal.
MATESRIALS
Framing (Steel): ASTM F1083 Schedule 40 galvanized steel pipe, welded construction, minimum yield strength of 25 ksi; coating conforming to ASTM F1043 Type A on pipe exterior and interior.
Fabric Wire (Steel): ASTM A392 zinc coated wire fabric.
Concrete: Section 03 30 00.
COMPONENTS
Terminal, Corner, and Gate Posts: 2.88-inch diameter.
Line Posts: 1.9-inch diameter.
Top and Brace Rail: 1.66-inch diameter, plain end, sleeve coupled.
Gate Frame:
1.9-inch diameter for welded fabrication.
Hot-dip galvanize after fabrication.
Gusset Plates: 1/4-inch thick steel for truss rod attachment; fabricate to weld into gate frame corners. Hot-dip galvanize after fabrication.
Fabric: 2-inch diamond mesh interwoven wire, 9 gage thick, top salvage and bottom selvage knuckled.
Tension Wire: 6 gage thick steel, single strand.
Tension Band: Galvanized steel.
Tension Strap: Galvanized steel.
Tie Wire: Aluminum alloy steel wire.
ACCESSORIES
Caps: Dome type, cast steel galvanized; sized to post diameter, set screw retainer.
Fittings: Sleeves, bands, clips, rail ends, tension bars, fasteners and fittings: galvanized steel.
Gate Hardware:
Fork latch with gravity drop rod and latch assembly.
Two 180 degree gate hinges per leaf.
Touch‑Up Primer for Galvanized Surfaces: ZRC cold-galvanizing paint, with 94 percent zinc by weight in dried condition.
Privacy Slats: Vinyl strips, sized to fit fabric weave. Color: as selected.
EXECUTION
INSTALLATION
Install framework, fabric, and accessories, in accordance with ASTM F567.
Place fabric on outside of posts and rails.
Set posts plumb, in concrete footings with top of footing 1 inch above finish grade. Slope top of concrete for water runoff.
Do not stretch fabric until concrete foundation has cured.
Stretch fabric between terminal posts.
Position bottom of fabric 2 inches above finished grade.
Fasten fabric to top rail, line posts, braces, and bottom tension wire with tie wire at maximum 18 inches on centers.
Attach fabric to posts with tension bars and tension bar clips.
Install bottom tension wire stretched taut between terminal posts.
Connect to existing fence at Picnic Area by installation of an end post.
The clear opening from end posts to buildings, fences and other structures shall not exceed 6 inches unless otherwise approved in advance by the Consultant.
Excavate holes for posts to the diameter and spacing required without disturbing the underlying materials.
Center and align posts. Place concrete around posts, and vibrate or tamp for consolidation.
Recheck vertical and top alignment of posts and make necessary corrections.
Extend concrete footings 1 inch above grade, and trowel to a crown to shed water.
Unless otherwise approved by the Consultant, no materials shall be installed on the posts, nor shall the posts be disturbed within 7 days after the individual post footing is completed.
ERECTION TOLERANCES
Section 01 40 00 – Quality Requirements: Tolerances.
Maximum Variation From Plumb: 1/4 inch.
Maximum Offset From True Position: 1 inch.
| END OF SECTION | ||
| Lalamilo Phase 2A Fencing Improvements | Chain-Link Fences and Gates | |
| IFB-27-HHL-005 | 32 31 13 - 2 |
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