08_02828_Fence_Materials-_Revised_0001.doc

SECTION 02828

FENCE MATERIALS

PART 1: GENERAL

1.1 SUMMARY

A. Section Includes: Barbed wire, barbless wire, staples, clip-type wire fasteners, fence clips, steel fence posts, wood posts and braces, wood treatment practices, and metal gates.

B. Related Sections:

Section 01009 – General Information and Requirements

1.2 SUBMITTALS

A. General: Submittals shall be according to Section 01009 - General Information and Requirements.

B. A written submittal for all materials to be used shall be submitted for approval to the Contracting Officer’s Representative prior to starting construction.

PART 2: PRODUCTS

2.1 MATERIAL REQUIREMENTS

A. Barbed Wire: A strand of two (2) 12‑1/2‑gauge galvanized wires twisted together with 2‑point barbs of 14‑gauge wire spaced 4-inches apart. Wire and barbs shall be zinc‑coated steel, with a zinc coating of at least 0.3 oz/ft2 of coated surface area. The minimum breaking strength of each wire shall be 950 lb‑force. The barbed wire shall conform to ASTM A 121.

B. Barbless Wire: A strand of two (2) 12‑1/2‑gauge galvanized wires twisted together. Wire shall be zinc‑coated steel wire of at least 0.3 oz/ft2 of coated surface area. The minimum breaking strength of each wire shall be 950 lb‑force. The barbless wire shall conform to ASTM A 121.

C. Staples: Bright‑finish or galvanized 9-gauge, 1-1/2 inch long.

D. Clip‑Type Wire Fastener: Shall be 11-gauge galvanized wire.

E. All wood line post fence clips shall be as shown in Figure 1 or equal approved by the government. The wire confinement nail shall have a slight bend but not so much to impede removing it from the clip.

Figure 1. Approved fence clip.

F. Steel Fence Posts: ASTM A 702; painted green with white or silver tops "T" bar type, with a welded or riveted anchor plate. Furnish with clip type wire fasteners (punched tabs for fastening wires are not acceptable). Steel posts shall be manufactured from wrought, rail, or new billet steel, and shall have a minimum weight of 1.33 lb/ft. The anchor plates shall weigh a minimum of 0.67 pounds ±5 percent, be a minimum of 18 square inches in area, and be 18-inches from the bottom of the post.

G. Wood Posts and Braces:

1. Acceptable Wood Posts: Sound single-stem members. A slight bend in one plane is acceptable. Posts may be full stem members, sawed members of square cross section, or split members (western red cedar only). Nominal diameter for treated posts shall be 5-inches or 6-inches. The following species will be acceptable: Ponderosa pine, Lodgepole pine, fir, and tamarack. All treated posts shall be free of bark with ends cut square. All wood line posts shall be minimum of 5-inches in diameter and 6.5-feet long. All brace posts shall be 6-inches in diameter and 6.5-feet long.

2. Basis for Rejection: Posts are not acceptable when sweep causes a straight line joining the center of the top to the center of the butt to fall outside the body of the post, or at point 2-inches or more from the center of the post. Posts that are charred, twisted, rotted, or excessively bent are not acceptable. Seasoning checks, single or opposite of each other with a total sum equal to or more than 1/2 the thickness of the post, are not acceptable.

H. Wood Treatment Practices: General: The following treatments may be used. Treatment method shall be in accordance with AWPA U.

1. Chromated Copper Arsenic Method: Chromated copper arsenate, waterborne preservative (conforming to Type B in AWPA 5) shall be applied. Minimum net retention of solid preservative shall be 0.4 pounds per cubic foot (gauge only) using the full-cell pressure treatment process.

2. Assay Report: The Supplier shall furnish an assay report, for all treated wood products, from an independent testing laboratory to the Contracting Officer. A minimum of 5-inch boring shall be taken from each bundle of 50 posts as samples for the assay report.

I. Metal Gates: All metal gates shall be Powder River Classic gate or approved equal.

PART 3: EXECUTION

3.1

WIRE FENCE AND GATE INSTALLATION

A.

Refer to Section 02824 – Wire Fences and Gates.

PART 4: MEASUREMENT AND PAYMENT

4.1

METHOD OF MEASUREMENT

A.

Units: Work described in this section will not be measured for payment.

4.2

BASIS OF PAYMENT

A.

Payment: No direct payment for the work described under this section will be made. The Contractor shall include consideration for this item in the bid price for other items of the Contract.

END OF SECTION 02828

New Fork Blue Rim Individual Fence

FENCE MATERIALS

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