Attachment_-_Revised_Fencing_Specifications.pdf

Page 1 of 10 Hillsborough County Public Schools

Fence Specifications.

Galvanized Chain Link Fence and Vinyl Coated Chain Link Fence.

Zinc-coated fabric shall be galvanized after weaving with a minimum 1.2 ounce of zinc per square foot of surface area and conform to ASTM A392, Class 1. Fabric to be 9-gauge wire woven in a 2” diamond mesh and shall match fence. Top and Bottom selvage to be knuckled-knuckled.

Framework. Steel pipe conforming to Standard Specification ASTM F1043 Group 1A (Schedule 40); external coatings per F1043 Type A; internal coatings Type A, or high strength steel pipe triple coated per Standard Specification ASTM F1043 Group 1C (SS40 as manufactured by Allied Tube & Conduit or approved equal); external coatings per F1043 Type B; internal coatings per F1043 Type D.

Bottom Tension Wire or Bottom Rail is not used on 6 foot or 4-foot fence; however, HCPS does use bottom rail and middle rail on our 10-foot fence.

Apply all coatings after welding. Pipe shall be straight, true to section and conform to the following weights:

Pipe Size Group 1A Group 1C

Outside Diameter Weight Lbs/Ft. Weight Lbs/Ft.

1-5/8” 2.27 1.84 1-7/8” 2.72 2.28 2-3/8” 3.65 3.12 2-7/8” 5.79 4.64 3-1/2” 7.58 5.71

Pipe Size Group 1A Group 1C 4” 9.11 6.56

6-5/8” 18.97 ----- 8-5/8” 24.70 -----

Components.

• Fence Post

Group 1A or 1C Fabric Height Line Post O.D. Terminal PostO.D.

Up to 6 Ft 2” 3” 6 Ft to 9 Ft 2-1/2” 3”

9 Ft to 12 Ft 2-1/2” 3”

• Swing Gate Post Swing Gate Width Double Gate Width Post O.D. Group 1A or 1C

Up to 6 Ft Up to 12 Ft 2-7/8” 7 Ft to 12 Ft 13 Ft to 24 Ft 4”

13 Ft to 18 Ft 25 Ft to 36 Ft 6-5/8” Group 1A Over 18 Ft Over 36 Ft 8-5/8” Group 1A

• Rails and Braces: 1-5/8” O.D. Group 1A or 1C.

• Gates: Frame assembly of 1-7/8” O.D. Group 1A or 1C with welded joints. Weld areas repaired with zinc-rich coating applied per manufacturer’s directions. Fabric, if needed shall match fence. Gate accessories, hinges, latches, center stops, keepers, and necessary hardware of quality required for industrial and commercial application. Latches shall permit padlocking.

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Fittings.

Post Caps: Pressed steel, cast iron, or cast aluminum alloy designed to fit snugly over posts to exclude moisture. Supply dome style caps for terminal posts and loop type for line posts. All fitting to conform to ASTM F626

• Rail and Brace Ends: Pressed steel, cast iron, or cast aluminum alloy, cup-shaped to receive rail and brace ends.

• Top Rail Sleeves: Tubular Steel, 0.051 thick x 7 inches long expansion type.

• Tension Bars: Steel strip, 5/8” wide x 3/16” thick.

• Tension Bands: Pressed steel, 14-gauge thickness x ¾” wide.

• Brace Bands: Pressed steel, 12-gauge thickness x ¾” wide.

• Tie Wires: Aluminum, 9-gauge, alloy 1100-H4, or equal.

• Hog Rings: Steel wire, 11-gauge, with a minimum zinc coating of 0.80 ounces per square foot of wire surface.

Specialty Coatings. PVC coated 6 mil (0.15mm) to 10 mil (0.25mm) thickness, thermally fused to zinc coated 9 Ga. steel core wire: Per ASTM F668 Class 2b. Core wire tensile strength 75,000 psi (MPa).

Powder-Coated Finish: All primary components receive a thorough cleaning and pre-treatment. This 12-step process consists of:

• Hot alkaline cleaner

• Clear water rinse

• Hot iron phosphate application

• Clear water rinse

• Z-153 sealer application

• Ring rinse

• Deionized water rinse

• Dry off oven heat at 425 degrees F.

• Zinc enriched epoxy powder coat at 2 mils.

• Gel oven heat at 400 degrees F.

• Ultra-polyester finish T.G.I.C. powder coat at 2 mils

• Final curing oven at 450 degrees F. in color to match fabric

Vinyl Decorative Fence by Master Halco LEGEND ® PVC Fencing. Pickets, rails, and posts fabricated from PVC extrusion. The PVC extrusions shall comply with ASTM D 1784, Class 14344B, and have the following characteristics:

• Specific Gravity (+/- 0.02) 1.4

• Using 0.125 specimen Izod impact ft. lbs./in. notch 23.0

• Tensile strength, PSI 6,910

• Tensile modulus, PSI 336,000

• Flexural yield strength, PSI 10,104

• Flexural modulus, PSI 385,000

• DTUL at 264 PSI 670C

Installation. Follow individual installation instructions for the appropriate style in setting posts. Set gateposts for gate opening specified in the construction drawings. Place posts placed 24” – 36” in the ground, depending upon the style of fence and local conditions and set in concrete (see individual installation instructions for the appropriate style).

Gateposts and corner posts on all fences and line posts on taller fences shall be filled with concrete for additional strength.

Place assembled fence sections into position and slide rails into posts. The rails are secured into posts by tabs which are notched into the rails and catch on the inside wall of the post.

Check each post for vertical and top alignment, and maintain in position during placement and finishing operation

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LEGEND ® PVC Fencing.

Installation. Follow individual installation instructions for the appropriate style) in setting posts. Set gateposts for gate opening specified in the construction drawings. Posts shall be placed 24” – 36” in the ground, depending upon the style of fence and local conditions and set in concrete (see individual installation instructions for the appropriate style). Gateposts and corner posts on all fences and line posts on taller fences shall be filled with concrete for additional strength.

Place assembled fence sections into position and slide rails into posts. The rails are secured into posts by tabs which are notched into the rails and catch on the inside wall of the post.

Check each post for vertical and top alignment, and maintain in position during placement and finishing operation

Gate Installation. Install gates plumb, level and secure using bolt-on hardware supplied by the manufacturer. Adjust hardware for smooth operation.

Accessories. Install post caps and other accessories to complete fence.

Ornamental Picket Fence (MONTAGE PLUS).

Special Warranty. Provide manufacturer’s standard limited warranty that its ornamental fence system is free from defects in material and workmanship including cracking, peeling, blistering and corroding for a period of 15 years from the date of purchase.

Ornamental Picket Fence.

• Pickets: Galvanized square steel tubular members per ASTM A-924/A-924M, having a 45,000 psi (310 MPa) yield strength and hot-dip galvanized per ASTM A653/A653M with a G90 zinc coating, 0.90 oz/ft2 (0.27 kg/M2. Space pickets 3-15/16” maximum (100 mm) face to face.

• Attach each picket to each rail with 1/4” (6 mm) industrial drive rivets.

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• Rails: 1-1/2” (38mm) x 1-3/8” (35mm) x 1-1/2” (38mm), 11 gauge manufactured per 0.120” (3.05mm)] thick galvanized steel “U” channel per ASTM A-653/A-653M, having a 50,000 psi (344 MPa) yield strength and G90 zinc coating, 0.90 oz/fl2 (o.27 kg/M2). Punch rails to receive pickets and rivets and attach rails to rail brackets with 2 each, 1/4” (6 mm) industrial drive rivets.

• Posts: Galvanized square steel tubular members manufactured per ASTM A-653/A-653M having a 45,000-psi (310 MPa) yield strength and G90 zinc coating, 0.90 oz/fl2). Zinc coating is (inside and outside), 2 ½ x 2 ½ size posts.

(Posts zinc coated outside and painted inside, is unacceptable).

• Accessories: Assembled panels with ornamental accessories attached using industrial drive rivets to prevent removal and vandalism.

• Finish: All pickets, channels, posts, fittings and accessories polyester powder coated individually after drilling and layout, to ensure maximum corrosion protection. (Coating of assembled sections is unacceptable). All components are given a 4-stage “Power Wash” pre-treatment process that cleans and prepares the galvanized surface to assure complete adhesion of the finish coat. All metal is then given a polyester resin-based power coating applied by the electrostatic spray process, minimum 3 mils. The finish is then baked in a 4500F (2320C) (metal temperature) oven for 20 minutes.

Accessories.

• Rail Attachment Brackets: Die cast of zinc (ZAMAK #3 Alloy) per ASTM B86-83Z 33521. Ball and socket design capable of 30° swivel (up/down - left/right). Bracket must fully encapsulate rail end for complete security. (no substitution)

• Industrial Drive Rivets: Of sufficient length to attach items in a secure non-rattling position. Rivet to have a minimum of 1100 lbs. (4894 N) holding power and a shear strength of 1500 lbs. (6674 N).

• Ornamental Picket Fence Accessories: Provide indicated items required to complete fence system. Galvanize each ferrous metal item in accordance with ASTM B695 and finish to match framing.

• Post Caps: Formed steel, cast of malleable iron or aluminum alloy, weather tight closure cap.

• Rings: Cast aluminum. Attach ring to top rail by inserting mounting blocks into top rail and riveting through side of rail using 1/4” (6 mm) industrial drive rivet. Hold bottom of ring in place by dowel that protrudes from ring through predrilled hole in bottom rail.

Installation. Install fence in accordance with manufacturer’s instructions.

• Space posts uniformly at 7’8-3/4” (2356 mm) maximum face to face unless otherwise indicated.

• Concrete Set Posts: Drill hole in firm, undisturbed, or compacted soil. Holes shall have diameter4 times greater than nominal outside dimension of post, and depths approximately 6” (152 mm) deeper than post bottom. Excavate deeper as required for adequate support in soft and loose soils, and for posts with heavy lateral loads. Set post bottom 36” (914

mm) below surface when in firm, undisturbed soil. Place concrete around post in a continuous pour. Trowel finish around posts and slope to direct water away from posts.

• Gate Posts and Hardware: Set keepers, stops, sleeves and other accessories into concrete.

• Check each post for vertical and top alignment and maintain in position during placement and finishing operation.

• Align fence panels between posts. Firmly attach rail brackets to posts with 1/4” (6 mm) bolt and lock nut, ensuring panels and posts remain plumb.

Gate Installation.

• Install gates plumb, level and secure for full opening without interference.

• Attach hardware by means, which will prevent unauthorized removal.

• Adjust hardware for smooth operation.

Deacero Decorative Fence.

Wood Post and Rail and Board on Board Privacy Fence.

Materials.

• Post: 6x6x6 dog-eared on top and set 6ft 6in on center.

• Rails: 2x6x7 pressure treated

• Carriage Bolts: ¾ inch x 8 inches including ¾-inch washers.

Installation.

• Set each post 3 feet in ground at finish grade. Top rail set 3 inches below top of post with two each carriage bolts in each post countersink heads and bolts. Lower rail set directly below top rail with two carriage bolts in each post.

Rails to be staggered every other opening.

Board on Board Privacy Fence.

• 4 x 4 x 8-foot pressure treated.

• 6 x 8-foot board on board panels.

• Set posts 8ft on center; attach 8-foot board on board panels.

Installation.

• Set 4x4x8 foot pressure treated post in ground 8 foot on center. Attach 6’x8’ panels board on board using 8 penny galvanized nails nailed 8 inches on center vertically.

Fence Filler or Chain link slat.

• Pexco chain link fence slats or similar. Standard Colors.

• Standard inserts and winged slats.

Temporary Fence.

• 6’ Post Driven Temporary Fence

• 6’ Temporary Fence Panels w/ stands

• Requires 1 sandbag per stand

Wind Screen 6’.

• Wind screen per linear Foot. Standard colors.

• Custom wind screen available at addition cost.

Grab Rail.

• 36” Aluminum Garb Rail

• 42” Aluminum Barrier Rail with pickets

Requirements for Inventory Parts.

• Vendor is to have the ability to research parts and supplies for specialty equipment or special circumstances from both OEM and aftermarket sources.

• Vendor is required to keep abreast of new merchandise of interest to HCPS as well as any items identified as discontinued.

• Part Numbers: Contractor will assist HCPS in determining industry nomenclature or description, units of measure, and manufacturer’s part numbers on items purchased for inventory.

• Possess sufficient inventory parts to meet the refurbishing needs of the District

• Provide efficient and rapid customer response at all times via phone or email 12 hours per day, 5 days per week

• Notify HCPS representative within 4 hours of receipt of a Purchase Order if unable to fill the order or meet the bid delivery requirements as noted herein.

• HCPS reserves the right to add any item(s) to this bid as permanent items at a set price if HCPS has a need to stock the items at the various warehouses.

• HCPS may quote items on this bid when purchasing large quantities, as defined by the District.