MATERIALS & INSTALLATION SPECIFICATIONS A. WIRE All wire will be of new galvanized material and in accordance with criteria outlined in Table 1 which follows ASTM - A 116 (woven wire), and/or ASTM-121 (barbed wire) standards. Galvanization is critical to rust protection of wire and different classes of galvanization provide different levels of protection. Wire with Class I and Class III galvanization meets the minimum level of treatment required to protect the wire from rust for the expected life span. Wires designated as regular, commercial and utility grade does not offer the level of treatment to prevent rust. Most wire manufacturers include wire specifications on fence tags. Table 1. Wire Type Specifications for Barbed, Smooth and Woven Wire Fence STRAND-BREAKING MINIMUM PROTECTIVE WIRE TYPE MINIMUM WIRE SIZE STRENGTHS COATING Standard 12-1/2 gauge with 14 Class I galvanized 850 pounds or 60,000 psi gauge or heavier per ASTM-121 Double Strand two-point barbs Barbed Wire spaced not more than 5 inches apart. High-Tensile 15-1/2 gauge four-point Class III galvanized 1,400 pounds or 135,000 psi Double Strand barbed per ASTM-854 Barbed Wire Standard Smooth 12-1/2 gauge Class I galvanized 950 pounds or 70,000 psi Double Strand Wire per ASTM-121 High-Tensile 12-1/2 gauge Class III galvanized 1,400 pounds or 135,000 psi Single Strand per ASTM-854 Smooth Woven Wire, Top and bottom wires, Class II zinc coating 950 lbs. minimum Style 4 11 gauge, intermediate or equivalent 0.5 oz. – Farm Fence and stay wires 14-1/2 per sq. ft. or wire gauge surface. ASTM A-116 standards 1. Wire Installation Fence wire will be stretched to sufficient tension prior to being fastened to posts. Temperature variations must be considered (wire will tighten in cold weather and expand in hot weather). Wherever possible, wire will be attached to fence post on side receiving most pressure.
MATERIALS & INSTALLATION SPECIFICATIONS A. WIRE All wire will be of new galvanized material and in accordance with criteria outlined in Table 1 which follows ASTM - A 116 (woven wire), and/or ASTM-121 (barbed wire) standards. Galvanization is critical to rust protection of wire and different classes of galvanization provide different levels of protection. Wire with Class I and Class III galvanization meets the minimum level of treatment required to protect the wire from rust for the expected life span. Wires designated as regular, commercial and utility grade does not offer the level of treatment to prevent rust. Most wire manufacturers include wire specifications on fence tags. Table 1. Wire Type Specifications for Barbed, Smooth and Woven Wire Fence WIRE TYPE MINIMUM WIRE SIZE MINIMUM PROTECTIVE COATING STRAND-BREAKING STRENGTHS Standard Double Strand Barbed Wire 12-1/2 gauge with 14 gauge or heavier two-point barbs spaced not more than 5 inches apart. Class I galvanized per ASTM-121 850 pounds or 60,000 psi High-Tensile Double Strand Barbed Wire 15-1/2 gauge four-point barbed Class III galvanized per ASTM-854 1,400 pounds or 135,000 psi Standard Smooth Double Strand Wire 12-1/2 gauge Class I galvanized per ASTM-121 950 pounds or 70,000 psi High-Tensile Single Strand Smooth 12-1/2 gauge Class III galvanized per ASTM-854 1,400 pounds or 135,000 psi Woven Wire, Style 4 – Farm Fence Top and bottom wires, 11 gauge, intermediate and stay wires 14-1/2 gauge Class II zinc coating or equivalent 0.5 oz. per sq. ft. or wire surface. ASTM A-116 standards 950 lbs. minimum 1. Wire Installation Fence wire will be stretched to sufficient tension prior to being fastened to posts. Temperature variations must be considered (wire will tighten in cold weather and expand in hot weather). Wherever possible, wire will be attached to fence post on side receiving most pressure.
382A-BarSmoWo-spec-8-15.docx