A. Chain Link Fencing Requirements A. Concrete shall be 2500 PSI compressive strength at twenty-eight (28) days, using ¾" maximum size aggregate. Concrete shall conform to the requirements of ASTM C94 except that site mixed concrete 2000 PSI will be acceptable. Grout shall consist of one part Portland cement to three parts clean, well-graded sand and the minimum amount of water required to produce a workable mix. B. Chain link fabric shall be nine (9) gauge steel wire, two (2") inch mesh, with both top and bottom selvages knuckled. Furnish one-piece fabric widths for fencing up to twelve (12’) feet high. Fabric shall be galvanized, ASTM A3902, Class I, with not less than 1.2 oz. zinc per square foot of surface. C. Pipe framework shall be standard weight (ASTM A120, Schedule 40 and Federal Specification RR-F-191/3), "hot dipped" galvanized steel pipe, internally and externally, with not less than 1.6 oz. zinc per square foot of surface. D. End, corner and pull post shall be a minimum of 2.375 O.D. steel pipe 3.65 lbs. per linear foot. All backstop uprights shall be 2.875" O.D. steel pipe, 5.79 lbs. per linear foot. E. Lie post shall be a minimum of 1.900" O.D. steel pipe, 2.72 lbs. per linear foot. F. Gate posts shall be 2.875 O.D. steel pipe, 5.79 lbs. per linear foot for leaf widths up to 6 feet and 4.000" steel pipe, 9.11 lbs. per linear foot for leaf widths over 6 feet and less than 13 feet. G. Top, mid and bottom rails shall be 1.66" O.D. steel pipe, 2.27 lbs. per linear foot. H. Accessories: a. Post tops and loop caps shall be galvanized pressed steel tops or heavy malleable iron with not less than 1.2 oz. zinc per square foot of surface. The base of top shall extend not less than two (2") inches below the tops of the posts and shall exclude moisture. Loop caps shall be provided with hole suitable for the through passage of the top rail. b. Tension wire shall be seven (7) gauge coated coil spring metal wire, finished to match fabric and located at bottom of all fabric except at backstop. c. Wire ties shall be gauged soft annealed galvanized steel or nine (9) gauge aluminum wire attached to top, mid or bottom rails twenty- four (24") inches O.C. and to line posts not more than fifteen (15") inches O.C. d. Wire ties for attaching fabric to tension wire shall be twelve (12) gauge annealed galvanized steel or aluminum wire at twenty-four (24") inches O.C. e. Stretcher bars shall be one-piece lengths equal to full height of fabric with a minimum cross section of 3/16" x 5/8". Provide one stretcher bar for each gate and end post, and two for each corner and pull posts. f. Stretcher bar bands shall be pressed steel or malleable iron, fourteen (14) gauge spaced not over fifteen (15") inches O.C. with top and bottom being as close to the end of the stretcher bar as possible.
