Landscape Structure - Fences and Barriers

As per current NATSPEC except as follows:

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3.3 Fencing

Radiata pine paling fence 
Height (mm): 1800

Fencing for swimming pools 

Location

• Play enclosures
• Retaining walls
• Swimming pools

• For padbolts, padlocks and master keying, refer to SG / DOOR HARDWARE

• Generally to AS 1926.1 and AS 2820 (excluding fencing and gate/s height).

• The effective fencing height shall not be less than 1500mm above intended finished ground level.

• Square picket top type pool fencing panels.  Spear top picket fencing is not acceptable and must not be used.
• Proprietary end caps to pickets to be colour matched compatible metal and permanently fixed to picket ends.
• Flat top pool type fencing panels
• Loop top pool type fencing panels

• The effective gate/s height shall not be less than 1500mm above intended finished ground level.

• For padbolts, padlocks and master keying, refer to SG / DOOR HARDWARE

GUIDE NOTE: Check with the local statutory authorities requirements for enclosed water storage for fencing dams on school sites.  Height of fencing must not be less than 1800mm.

General
All fence posts to have permanently fitted end capes to tops.  The end caps to be of the same material and finish as the fence posts.

Animal space - external barrier 

• Height (Nominal):  2100 mm above ground level

• Number of Leaves:  2 (1 per pen)
• Width (nominal):  750 mm
• Locking:  Provide 200 mm padbolt and padlock.  
  Refer to SG / DOOR HARDWARE

Sheep-proof fence 

• Height (Nominal):  1200 mm above ground level

• Permanently fitted with proprietary galvanised steel caps
• Maximum spacings:  1800 mm

• Number of leaves: 1
• Width (Nominal): 2000 mm
• Opening direction: Outwards
• Locking: Horizontal shoot bolt complete with hasp and staple

• Finish: Flush with surrounding ground at perimeter, trowelled to a 25 mm crown at centre.

• Height (nominal):  2150 mm height above ground and 300 mm depth below ground

• Permanently fitted proprietary galvanised steel caps
• Maximum Spacings:  3000 mm
• Bracing stays: Double bracing stays to corner posts and to every twentieth intermediate post in multiple (side by side).

• Number of Leaves:  2
• Width (Nominal) per leaf: 1500 mm (total nominal width 3.0 metres)

• Location: Central across gate openings.
• Size: 900 mm wide x width of gate x 150 mm thick. Reinforcing: F72 mesh.
• Concrete: 20 Mpa

• Finish: Flush with surrounding ground at perimeter, trowelled to a 25 mm crown at centre.

LPG Enclosure 

• Height (nominal):  2100 mm

• Permanently fitted proprietary galvanised steel caps

• Number:  2
• Leaves per gate opening:  1
• Width (nominal) per leaf:  1000 mm
• Opening Direction:  Outwards
• Location:  Diagonally opposite corners
• Locking:    Fit pad bolt for 50 mm padlock, masterkey to PW "E" key. 

General

General

Location
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• General: AS 1725
• Height (Nominal): 2400 mm

• Permanently fitted proprietary galvanised steel caps
• Maximum Spacings:2400 mm
• Bracing Stays:Double bracing stays to corner posts and to every twentieth intermediate post in multiple (side by side)

• Top and bottom rails:
• Bottom rail 150mm above ground level.

• Centre support cable

• Number of Leaves: 2
• Width (Nominal) per Leaf:  1 metre (total nominal width 2.0 metres)

• Finish: Flush with surrounding ground at perimeter, trowelled to a 25mm crown at centre.

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3.9 Welded Mesh Fencing 
 

GUIDE NOTE:  Refer to the drawings and the Educational Facilities Standards and Guidelines for locations.

General
All fence posts to have permanently fitted end capes to tops.  The end caps to be of the same material and finish as the fence posts.

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Weldmesh fencing
Generally:

• Nominal mesh size:  50 mm (long) x 75 mm (cross)
• Nominal dimension of wire:  5 mm
• Top and Bottom Roll:  50 mm at 90o and then 100 mm return.
• Height (Nominal):  900 mm above ground level.

• Intermediate/Corner:  Nominal size:  40 NB.
• Maximum spacing:  2500 mm
• Gate, Single:  Nominal size:  50 NB.
• Gate, Double:  Nominal size:  80 NB.

• Tube frame:  33.7 OD
• Tube frame thickness  2.6 mm
• Nominal mesh size:  50 mm (long) x 75 mm (cross)
• Nominal dimension of wire:  5 mm

• Number of leaves:  1
• Width (nominal):  900 mm
• Locking:  Gate latch with provision for padlock

• Number of leaves:  2
• Width (Nominal):  2700 mm (total opening width)
• Locking:  Gate latch, add pad bolt with ferrule imbedded in concrete

• Depth:  600 mm
• Diameter:  200 mm
• Finish:  Flush with surrounding ground at perimeter, trowelled to a 25 mm crown at centre.

Gates and movable panels for pens - Animal Space 

• Coating mass for wire:  Type A
• Nominal mesh size: 50 mm (long) x 75 mm (cross)
• Nominal dimension of wire: 5 mm
• Top and bottom roll: 50 mm at 90o and then 100 mm return.
• Panel height (nominal): 1200 mm above floor level.

• Nominal size:  60 mm OD medium (flanged gate posts)
• 40 mm OD medium (flanged gate posts)
• Flanges:  130 x 130 x 5 mm with 4 x 13 mm diam. holes.  Flanges welded to posts and securely fixed to concrete floor
• Protective coating:  Hot dipped galvanised after fabrication

• Protective Coating:  Hot dipped galvanised after fabrication
• Locking:  Lockable, gate latch and strike welded on gate/panel assembly .
• Tube frame:  33.7 OD
• Tube frame thickness:  2.6 mm
• Nominal mesh size:  50 mm (long) x 75 mm (cross)
• Nominal dimension of wire:  5 mm

Weldmesh fencing, security - standard security fence 

• Adjoining fence: Provide a return panel to prevent access between the security fence end post and adjacent property fence.

• Galvanised Wire: To AS 2423

• Top of Fence Panel: 1825mm above ground level (concrete mower strip or retaining wall whichever is higher).
• Panels, finishing height: Must not finish higher than the top of the fence post cap.
• Fence clearance: 50mm minimum, 150mm maximum above ground level (concrete mower strip or retaining wall whichever is higher) to underside of fence.  Where ground clearance exceeds the maximum clearance the panels are to be cut, infilled, stepped etc. to achieve the appropriate clearance.  Cut panels must be a minimum length of 1200mm.

• Protective coating:  Hot dipped galvanised after manufacture.
• Weld:  All joints
• Nominal mesh size: 50mm horizontal x 75mm vertical spacing.
• Length: 2400mm
• Nominal dimension of wire: 5mm
• Top and Bottom Roll: 75mm at 90o and then returned at 45o.

• Secured to pre-drilled posts with hot dipped galvanised 8mm hexagonal headed bolts and nuts with galvanised “U” clips for holding mesh panels.  Secure nuts by spot welding.
• M8 x 90mm for 50mm NB posts
• M8 x 100mm for 80mm NB posts
• M8 x 150mm for 100mm NB posts
• Fixing: All panels to be fitted with a minimum of 8 “U” clips per panel.

• To AS 1163 grade 350 tube, drilled for bolt fixing panel and with permanently fitted proprietary galvanised steel caps.
• Post extension: 550mm cranked inwards (towards site) at 45 degrees and drilled to receive three rows of barbed wire.
• Concrete: keying: Part of the post set in concrete is to be dimpled or deformed.
• Protective coating:  Hot dipped galvanised

• Nominal size: 50mm NB medium grade x 3.6mm wall thickness x 3250mm long.
• Maximum spacing: 2460mm nominal (to suit panels) unless otherwise stated.

• Complete with adjustable galvanised gudgeons and gate clips at required heights to receive gate/s.
• Fittings, security: Gudgeons and gate clips to be firmly secured with a 9.5mm diam. MS pin through a 9.5mm diam. hole drilled in gudgeons, clips and post.  Pins to be spot-welded to prevent removal.
• Nominal size, single gate: 80mm NB medium grade x 4mm wall thickness.
• Nominal size, double gate (up to 6000mm opening): 80mm NB medium grade x 4mm wall thickness.
• Nominal size, double gate (over to 6000mm opening): 100mm NB medium grade x 4.5mm wall thickness.

• Nominal size: 50mm NB medium grade.
• Fittings: Connect to posts with proprietary “T” fittings.
• Maximum spacing: To the first intermediate post 2400mm.

• General:
  • Finish: 50mm below ground level.  In paved areas, finish the concrete flush with the paved surface.
  • Backfilling, (other than paved surfaces): Earth, well rammed to effect rigidity of posts.
• Other than rock:
• Position each post on a minimum 75mm bed of concrete, consolidate posts in the holes to full depth (concrete) with a minimum of 100mm of concrete cover all round.
  • Intermediate post holes: 950 deep x 250mm minimum diameter.
  • Gate, change of direction and end posts: 950 deep x 300mm minimum diameter.
• Rock:
  • Excavate post holes to full depth to allow a minimum of 30mm of concrete cover all round.  Consolidate with concrete for full depth 
• Concrete: 20MPa minimum strength for all footings

• To AS N4, Hot dipped galvanised barbed wire, comprised of two 1.57mm diameter wire twisted together with four point barbs at nominally 90mm centres.
• Strained tight after concrete post footings have set (minimum 24 hrs).
• Tie in place with two strands of heavily galvanised 1.57mm tie wire secured through predrilled holes.
• Rows: Three.
• Spacings: 150mm

• Galvanised
• Fixing, weldmesh panels: All horizontal and vertical members to be welded to the outside of the frame.
• Height: Match height of fence.
• Extension: Gate extension to be level with gooseneck extension on fence.
• Barbed wire: Match lines of barbed wire in fence.
• Diagonal brace for barbed wire (regardless of size).
• Weldmesh panels: Cut to suit frame.  Panels to match and be kept level with fence panels.
• Gate/s must be lockable in both open and closed position.
• Drop bolt/s: Lockable 850mm long on each gate.
• Pipe dowel keepers: Provide at ground level to lock gate/s in both open and closed position.
• Where drop bolts do not reach the ground when the gates are in the open position, a yellow 1800mm high post and steel cap with bolt keeper, is to be installed.  Post is to be concreted 600mm in the ground.
• Yellow posts: 65 x 65 x 2.5mm galvabond steel with galvabond steel caps.
• Each leaf is to have a 25mm NB internal stile between middle and bottom rails, with a 100mm space with no mesh from the closing stile, to allow external access to the drop bolt and lock.
• Hanging: Hang gates on adjustable gudgeon pins and gate clips fixed to gate posts.  Fixing bolts to be spot welded to prevent removal.
• Swing: Inwards.

• Number:
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• Size:
  >mm wide
• Galvanised frame: 25mm NB
• Proprietary locking mechanism: Internal protected encased locking device and hand hole 1500mm from bottom of gate.
• Proprietary item: Broadhurst lock.
• Slide bolt to be lockable in both open and closed positions.
• The internal protected encased locking device to have 20mm diam. steel bar.
• Proprietary lug to be bolted to closing post.

• Galvanised frame: 32mm NB
• Number: Two, equal leaves.
• Proprietary locking mechanism: Internal protected encased locking device and hand hole 1500mm from bottom of gate.
• Proprietary item: Broadhurst lock.
• Slide bolt to be lockable in both open and closed positions.
• The internal protected encased locking device to have 20mm diam. steel bar.  Shoot bolt to prevent gates opening when drop bolts are not closed and/or locked.

• For padbolts, padlocks and keying requirements generally for gates, refer to SG / DOOR HARDWARE

• After preparing surface apply two coats of zinc rich paint in accordance with the paint manufacturer’s instructions to any galvanised surfaces damaged (eg: by welding, cutting etc.).

GUIDE NOTE:  Extent of temporary fence and position of access gates must be clearly shown on drawings.

• Top Selvedge:  Twisted and barbed.
• Bottom Selvedge:  Twisted and barbed.

• Height:  2100 mm
• Nominal Size & Maximum Spacings:  To AS 1725 Tables 1 and 2.
• End Treatment:  Welded and drilled flanges where required for bolted connections; otherwise permanently fitted with proprietary galvanised steel caps to post tops.

• Post Extension:  380 mm vertically, cranked inwards at 45 deg. or vertical.

• Number:  3 rows x 2 strands each row.

• Text:  "DANGER - AUTHORISED PERSONNEL ONLY"
• Colour:  Standard red and black lettering on white background. 
• Size:  450 mm long x 300 mm high.
• Material:  Galvanised sheet metal.
• Spacing:  Displayed at 25 metre centres at 1800 mm height.

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3.11 Tubular Steel Security Fence - Square Hollow Section 
 

• Adjoining fence: Provide a return panel to prevent access between the security fence end post and adjacent property fence.

• Height: 2150mm
• Fence clearance: 50mm minimum and a 150mm maximum above ground level (concrete mower strip or retaining wall whichever is higher) to underside of fence.  Where ground clearance exceeds the maximum clearance the panels are to be cut, stepped, infilled etc. to achieve the appropriate clearance.  Stepped panels must be a minimum length of 1200mm.
• Panels (mm): 2400 long x 2100 high x 40mm square hollow section frame 1.6mm thick.
• Pickets: Pressed and cut to form spear point top, 2100 long x 25mm square x 1.2mm thick.
• Picket spacings: 115mm (nominal) fixed to all panels and gates.
• Welds: Silicone bronze

• Galvabond square hollow section posts complete with permanently fitted proprietary galvabond steel caps.
• Posts: 65 x 65 x 3000 x 2.5mm thick wall.

• Galvabond square hollow section posts complete with galvabond steel cap:
• Single gates with less than 3000mm opening, and double gates with less than 6000mm opening to be hinged from:
• 100 x 100 x 3000 x 5 x 3000mm long posts.
• Double gates with a 6000mm opening or more to be hinged from:
• Twin (2) 100 x 100 x 3000 x 5 x 3000mm long posts.

• Rail brackets: Compatible rail brackets and sleeves fastened to post using 5mm stainless steel rivets.  Rivets are to be on the inside of the fence unless prevented by bracket positioning
• Brackets and sleeves must be powder coated to match finishes panels and posts.

• General:
  • Finish: 50mm below ground level.  In paved areas, finish the concrete flush with the paved surface.
  • Backfilling, (other than paved surfaces):  Earth, well rammed to effect 
  • Rigidity of posts
• Other than rock:
  • Position each post on a minimum 75mm bed of concrete, consolidate posts in the holes to full depth (concrete) with a minimum of 100mm of concrete cover all round.
  • Intermediate post holes: 800 deep x 250mm minimum diameter.
• Posts minimum setting depth: 700mm
  • Gate, change of direction and end posts: 900 deep x 300mm minimum diameter.
• Posts minimum setting depth: 700mm 
• Rock:
  • Excavate post holes to full depth to allow a minimum of 30mm of concrete cover all round.  Consolidate with concrete for full depth 
• Concrete: 20MPa minimum strength for all footings

• Vertical stiles: 65 x 65 x 1.6mm (minimum).
• Horizontal rails; 65 x 65 x 1.6mm (minimum).
• Twin (2) 65 x 65mm bottom rails
• Pickets: 25mm square picket to match fence panels.
• Drop bolt/s: Lockable 850mm long on each gate.
• Pipe dowel keepers: Provide at ground level to lock bolts in both open and closed position.
• Where drop bolts do not reach the ground when the gate/s are in the open position, a yellow 1800mm high post and steel cap with bolt keeper, is to be installed.  Post is to be concreted 600mm in the ground.
• Yellow posts: 65 x 65 x 2.5mm galvabond steel with galvabond steel caps.
• Finish: Gates must be fully powder coated in nominated colour.

• Proprietary locking mechanism: Internal protected encased locking device positioned 1500mm from bottom of gate.
• Proprietary item: Broadhurst lock.
• Slide bolt to be lockable in both open and closed positions.
• The internal protected encased locking device to have a 20mm diam. Steel bar.
• Proprietary lug to be elongated height and to be bolted to closing post.

• Proprietary locking mechanism: Internal protected encased locking device positioned 1500mm from bottom of gates.
• Proprietary item: Broadhurst lock.
• Slide bolt to be lockable in both open and closed positions.
• The internal protected encased locking device to have 20mm diam. steel bar.  Shoot bolt to prevent gates opening when drop bolts are not closed and/or locked.

• Refer to SG / DOOR HARDWARE for gate pivots, padbolts, padlocks and keying requirements for gates generally.

• All damaged, cut or welded surfaces to have two coats of zinc rich paint and two coats of colour touch up paint to match original colour surface.  All surfaces must receive the appropriate preparation and application in accordance with the paint manufacturer’s instructions

• All fencing panels, pickets, posts, gates and accessories are to be fully powder coated.

• Colour:
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