Specifications.pdf
PDF 252 KB Posted
- Attached to
- STEEL JACK FENCE SUPPLIES, BLM ID
- Solicitation number
- 140L2625Q0071
About this file
This file is a Materials Specifications document detailing technical requirements for fencing materials and components. The specifications cover thirteen categories of materials including wood posts (7' length, 5" minimum diameter, pressure-treated lodgepole pine, Ponderosa pine, or Southern yellow pine), wood braces (8' length, 4" minimum diameter), barbed and barbless wire conforming to ASTM A 121 standards, various fence stays, steel T-posts meeting ASTM A 702 requirements, steel pipe components, staples, fasteners, and nails.
The document provides detailed specifications for a Steel Jack Fence system, which includes steel rails (1¾" OD, 13 gauge minimum, 12 feet long), prefabricated jacks (2⅜" OD, 10 gauge minimum, 50" height with welded internal sleeves), 90-degree corners, and ravines with pivot mechanisms. All steel components must be new and manufactured in the USA, with specific requirements for wall thickness, weight specifications, and construction details. The steel does not require painting or galvanizing. Additional hardware specifications include carriage bolts, hex nuts, brace clamps, and various gauges of galvanized wire components, with precise dimensional and strength requirements for each material type.
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| File | Type | Posted |
|---|---|---|
| bid_schedule.docx | DOCX document | |
| Sol_140L2625Q0071.pdf |
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Materials Specifications
1. Wood Posts 7' length:
Acceptable Wood Posts: Shall be sound single-stem members. A slight bend in one plane is acceptable. Posts will be round full stem members. Posts shall be 5 inches minimum diameter at the small end. Lodgepole pine, Ponderosa pine, and Southern yellow pine (full stem with bark removed) are acceptable for both posts and braces.
Wood posts will be fully pressure-treated.
2. Wood Braces Posts 8' length:
Acceptable Braces: Shall be sound single-stem members. A slight bend in one plane is acceptable. Brace rails will be round full stem members. Brace rails shall be 4 inches minimum diameter at the small end. Lodgepole pine, Ponderosa pine, and Southern yellow pine (full stem with bark removed) are acceptable for both posts and braces.
A. 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 a 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 each other with a sum total equal to or more than 1/2 the thickness of the post are not acceptable.
3. Barbed Wire: A strand of two 12-1/2-ga galvanized wires twisted together with
2-point barbs of 14-ga 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.
4. Barbless Wire: A strand of two 12-1/2-ga, 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.
5. Wire Fence Stays: Twisted wire fence stays manufactured from smooth galvanized 9-ga wire.
6. Wood Fence Stays: Sound and straight pieces, 2-1/2- to 3-1/2-inch diameter of the species pine or fir (with bark removed), honey locust, western red cedar (full stem with bark removed), juniper, osage orange, and white oak. Treatment with preservative is not required. Stays shall be of uniform length sufficient to touch the ground. Total length shall be 4 feet-0 inches.
7. Wood Twist Sticks: Sound and straight pieces, 1-1/2- to 2-inch diameter of the species pine or fir (with bark removed), honey locust, western red cedar (full stem with bark removed), juniper, osage orange, and white oak. Treatment with preservative is not required. Stays shall be of uniform length sufficient to touch the ground. Total length shall be 4 feet-0 inches.
8. Steel Fence T-Posts: ASTM A 702; painted solid green or green with white tops, "T" bar type, with a welded or riveted anchor plate. Steel posts shall be manufactured from wrought, rail, or new billet steel, and shall have a minimum weight of 1.33 lb/lin ft. The anchor plates shall weigh a minimum of 0.67 pounds +5 percent, and be a minimum of 18 inch2 in area.
9. Steel Pipe:
A. Post Pipe shall be; 7’ (84”) x 2”
Steel Pipe: A53/A53M-00 Standard Specification for Pipe, Steel, Black and Hot- Dipped, Zinc-Coated, Welded and Seamless.
NPS Designator: 2" Outside Diameter: 2.375 (60.3) Wall Thickness: 0.154 (3.91) Normal Weight per/ft: 3.65 (5.44) Weight Class: STD Schedule: 40 Pipe
B. Brace Pipe shall be; 7’ (84”) x 1 ¼”
Steel Pipe: A53/A53M-00 Standard Specification for Pipe, Steel, Black and Hot- Dipped, Zinc-Coated, Welded and Seamless.
NPS Designator: 1 1/4" Outside Diameter: 1.660 (42.2) Wall Thickness: 0.140 (3.56) Normal Weight per/ft: 2.27 (3.39) Weight Class: STD
Schedule: 40 Pipe
C. Brace Clamps and Fittings: Shall be galvanized. ¾” x 12 gauge galvanized.
D. Carriage Bolts and Hex Nuts: 5/16” x 1 ¼”
10. Staples: Bright-finish or galvanized 9 gauge with slash-cut points 1-3/4 inches long.
11. Clip-Type Wire Fastener: Galvanized wire, 8 gauge minimum.
12. Nails: Ring Shank, 7" long by 5/16" diameter.
13. Steel Jack Fence
Steel Rails, Jacks, and Corners
• Rails shall be 1 ¾” OD, 13 gauge minimum, and 12 feet long
• Prefabricated jacks shall be 2 3/8” OD, 10 Gauge minimum, and 50” height jacks 1¼” internal sleeves shall be welded at 17”, 30”, and 42” from the bottom of the jacks.
• Prefabricated 90 degree corners shall be supplied
• Prefabricated Ravines shall be supplied
• All Steel must be new and made in the USA
• All parts will be supplied by the contractor.
Finish
• The steel does not need to be painted or galvanized.
• Ravine o One end of the ravine shall be constructed of 1 7 /8" OD pipe, .090 wall thickness, 12" long. This end will slide on the outside of the internal sleeve extending from the steel jack.
o The other end of the ravine shall be an internal sleeve to the pipe rails. This will be constructed out of 1" schedule 40 pipe, 24" long.
o The two pieces shall be connected in the middle with a pivot point utilizing a½", grade 5 bolt, 1 ½" long with a nylock nut to allow the two sides to pivot.
o Each ravine will have the same specifications.
Steel Jack Fence
1¼” internal sleeves shall be welded at 17”, 30”, and 42” from the bottom of the jacks.
• Prefabricated corners shall be supplied- They should be constructed out of 1” schedule 40 pipe. Two peaces will be connected The two pieces shall be connected in the middle with a pivot point utilizing a½", grade 5 bolt, 1 ½" long with a nylock nut to allow the two sides to pivot. See Picture Below.
12.Steel Jack Fence
1¼” internal sleeves shall be welded at 17”, 30”, and 42” from the bottom of the jacks.
• Prefabricated 90 degree corners shall be supplied
• Prefabricated Ravines shall be supplied
• All parts will be supplied by the contractor.
Finish
• Ravine o One end of the ravine shall be constructed of 1 7 /8" OD pipe, .090 wall thickness, 12" long. This end will slide on the outside of the internal sleeve extending from the steel jack.
o The other end of the ravine shall be an internal sleeve to the pipe rails. This will be constructed out of 1" schedule 40 pipe, 24" long.
o The two pieces shall be connected in the middle with a pivot point utilizing a½", grade 5 bolt, 1 ½" long with a nylock nut to allow the two sides to pivot.
o Each ravine will have the same specifications.
| Fence Materials Specs |
| Steel Jack Fence_FenceCorner |
| Steel Jack Fence-Specs |
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