LYSAGHT® fences are stylish, economical,strong and durable. And they’re easyto install and maintain.

Designed to Australian wind loadingstandards, LYSAGHT NEETALOK® cyclonicfences are available in standardheights of 1500 and 1800 mm. Theycan be installed on flat and slopinggrounds, and are complemented byaccessories.

This is a step-by-step guide for theselection and installation for NEETALOK®

cyclonic fences.

This publication covers LYSAGHT

NEETALOK fences which are designed forinstallation in the tropical cycloneregions as defined in AS 1170.2—1989SAA Loading Code, Part 2: Windloads.

We have a similar publication forinstallation of non-cyclonic fences usedin wind regions A and B (see map onPage 4).

NEETALOK fences are specificallydesigned not to fly apart during acyclone. This means they are muchsafer than standard fences.

However cyclonic wind conditions canbe so extreme that NEETALOK fencescannot be guaranteed to survive acyclone.

Gates and their installation must beengineered for each individualapplication.

NEETALOK is the superior steel fencesolution for cyclonic regions.

LYSAGHT NEETALOKFence installation for cyclonic regions

LYSAGHT NEETALOKFence installation for cyclonic regions

2

Components

NEETALOK FENCE

NEETALOKstandard post

Standard lengths:2100, 2400, 2700

& 3000 mm(used as trim–seeFigure 4 & changeof slope Figure 5)

Infill sheetStandard lengths:1490, 1790 mmBMT 0.42

NEETALOKbrackets

Lysaght post cap(cut in half)

Domed cap

Square post(optional at

corner junctions)

Square post100 x 100mm(optional at

corner junctions)

Domed cap

Domed cap

Self-drilling self tapping hex. washer-head screws

12—14 x 2012—14 x 45

NEETALOK universal railStandard length 2350 mm

Rectangular post100 x 50 mm

2.0, 2.5, 3.5 mm BMTStandard lengths:

2400, 2700 & 3000 mm

NEETALOKraking

adaptors

End bracket

3

Before you start work• Read this guide before you start.

• Check you have the correctcomponents for the type of fenceyou are installing.

• Check where you intend to digthere are no undergroundelectricity, telephone, gas or watermains.

• Check you have the tools you need.

Tools you need• Screw gun (or power drill) with

torque adjustment

• Marker (not black pencil)

• Tape measure

• Rubber mallet

• Stringline and marker pegs

• Shovel and/or spade

• Spirit level

• Safety gloves and glasses

• Sharp knife (to split LYSAGHT postcaps)

• Tin snips (if cutting required)

• Nibbler (optional if cutting required)

• Power saw with metal cutting blade(optional if cutting required)

• Concrete mixer (optional)

• Posthole digger (optional)

ComponentsPosts and post caps

Depending on how you configurecorners and ends of fence runs, youmight need extra posts. (Figures 4 and 5).

Your selection of extra posts willaffect the number and type ofadditional post caps.

Choosing your componentsPages 4 to 7 help you to select yourfence type and components.

Before you order• Decide the height of your fence

1500 or 1800 mm high.

• Choose your components as listedin the order guides below.

NEETALOK order guide:• Number of fence panels

(Pages 4 & 5)

• Number and type of posts andtheir lengths (Pages 5, 6 & 11)

• Number of square posts andtheir lengths (Pages 5, 6 & 11)

• Number and type of post caps(Page 7)

• Number and lengths of coverstrips (Page 10)

A standard fence panel consists of thefollowing components.

NEETALOK components2 Rectangular hollow section posts

4 NEETALOK brackets

4 NEETALOK raking adaptors if fence isto be raked

2 NEETALOK universal rails

3 Infill sheets (TRIMDEK 0.42 mm BMT)

2 Domed caps for rectangular posts

16 self-drilling hex. head screws12–14 x 20

24 self-drilling hex. head screws12–14 x 45

NEETALOK standard posts for trims(optional)

LYSAGHT post caps for trims(optional)

At the start

4

Figure 2Wind regions based onAS1170.2—1989

NEETALOK fences may be used in anyterrain category.

u Find out your wind regionThe fences covered by this guide aredesigned for use in region C and D ofAS 1170.2—1989 SAA Loading Code,Part 2: Wind Loads (Figure 2). Non-cyclonic regions are covered in ournon-cyclonic fence guide.If you haveany doubt about the region yourfence will be in, get advice from yourlocal building consent authority.

Selection of fence type

Region C

Region A & B

Alice Springs

Perth

Adelaide

Melbourne

Canberra Sydney

30°

25°

20°

30°

27°

25°

20°

Coffs Harbour

CorindiGrafton

Brisbane

Maryborough

Bundaberg

ToowoombaCasino

Glen Innes

MontoBiloela

Rockhampton

Mackay

BowenTownsville

MareebaCairns

Cooktown

Emerald

CollinsvilleCharters Towers

Atheron

Dunbar

Bour

keto

wn

Moreton

McDonnel

WeipaDarwinAdelaide River

Katherine

Wyndham Ivanhoe

KununurraDerby

Broome

Pt. HedlandMarble Bar

Millstream

Mt. Amy

CroydonOnslow

Gascoyne JunctionCarnarvon

Callalhard

MullewaGeraldton

Green Head

Morawa

Gunyindi

Hobart

Region D

West Moreland

Borroloola

Fence features

KCOLATEEN ecnef ecnef3epyT( NEERCSATEEN ro NEERCSATEEN )sulp

noigerdniW DroC lynoC

stsoplapicnirP snoitceswollohralugnatceR NEERCSATEEN htiwstsopdradnatssreneffits

fotnemhcattAtsopotsliar

KOLATEEN ,dnastekcarb,dekarsiecneffi

KOLATEEN srotpadagnikarswercS

steehsllifnI folenaprepsteehs3ssenkcihtlatemesabmm24.0

folenaprepsteehs2ssenkcihtlatemesabmm53.0

ecittaL elbaliavatoN lebaliavA

noitallatsnI dekarrodeppets,levLe edkarrodeppets,leveL

spaC stsoprofspacdemoDTHGASYL smirtrofspactsop

THGASYL spac,spactsop demod

Figure 3Fence types

1582 mm nominal

NEETASCREEN fence type 3 (shown) andNEETASCREEN PLUS fence type 3

(2 infill sheets, stiffened posts, infills screwed to rails)

2350 or 2050 or 1750 mm nominal

(see Figure 8)

NEETALOK fence(3 infill sheets, rectangular hollow posts, NEETALOK rail support brackets)

Nom

inal

fenc

e he

ight

1500

or

1800

mm

Nom

inal

fenc

e he

ight

1500

or

1800

mm

See Figure 5

5

Figure 4Preliminary selection of posts for NEETALOK fences

Selection of posts for NEETALOK

fencesThe panels of NEETALOK fences aresupported by brackets attached torectangular hollow section posts.

On sloping ground, NEETALOK fencescan be stepped, or sloped parallel tothe slope using NEETALOK rakingadaptors.

On stepped installations each panelmust have two posts. Adjacent panelson a level installation may share acommon post (Figures 4 and 5).

At the ends of a fence run and atsteps in height, the ‘free’ end of apanel is trimmed and stiffened by aNEETALOK standard fence post, fixed tothe fence rails (Figure 4).

NEETALOK fences - select posts

TYPICAL POST NOT AT A CORNER

(Plan view)

ALTERNATIVE FREE END DETAIL

FOR LEVEL SITES ALTERNATE CORNER DETAIL (TYPICAL) FOR LEVEL SITES

Posts

R O A D

SKETCH LAYOUT OF NEETALOK FENCE

TYPICAL CORNER (Plan view)

See

Figu

re 5

Optional 60 x 60 square hollow section, height from rail to rail

Trimdek

Fence rail

NEETASCREEN standard post for trim30

0

Fence post

NEETALOK bracket

Trimdek

300

Fence post

300

10–16 x 16 Hex. head self drilling screws

Fence panels

End brackets - fix with 3 x 12 - 14 x 20 hex head screws

100 x 100 x 3 SHS post will do all cases

Fence panels100 x 100 x 3 SHS post

End bracket fix with 3 x 12 - 14 x 20 hex head screws

dniWsnoiger

ecneFthgieh ezistsoP

)mm( )mm(

C0051 0.2x05x0010081 5.2x05x001

D0051 5.2x05x0010081 5.3x05x001

Check the number and type of postsyou want. Mark them on a sketch ofyour fence site (Figure 4). You willneed to consider:

• The first post, in a fence run,that doesn’t form a corner;

• Intermediate posts;

• The configurations of posts atcorners (Figure 4);

• If the fence is to be stepped orsloped;

NEETALOK fence post materialsizesNEETALOK posts are rectangular hollowsteel sections.

6

Figure 6Panel arrangement

Figure 5NEETALOK installations

If the ground is not all level, considerwhere the fence will be stepped orraked (Figure 5).

If some of the ground is level andsome sloping, or if the slope variesmarkedly, you might need posts ofdifferent lengths.

Standard post lengths are 2400, 2700and 3000 mm.

NEETALOK fences: determine post lengths

See Figure 5

Ground level

50 mm

Nom

inal

fenc

e he

ight

1500

or

1800

mm

Foot

ing

dept

h

Footing diameter

E = End of post to bottom of concrete: 40 mm minimum 150 mm maximum

2350

2050 2050 2050 2050

100

300300 300300

Free end

Alternative stepped fenceStepped fence Level fence Raked fence on sloped ground

2350 2350 max

Fence general assembly

Dimension A = 2350 mm nominalDimension B = 2050 mm nominalDimension C =1750 mm nominalDimension X = 300 mm nominal

detaluclaChtgneltsopcisab

dradnatsfohtgneLesuottsop

muminiM mumixaM)mm( )mm( )mm(

0042nahtsseL *00420042 0152 00421152 9962 *00720072 0182 00721182 9992 *00030003 0113 0003

neewtebsi6erugiFniEnoisnemidtahtostuC*.mm051dna04

u Determine basic post lengths(Refer to Figure 6).

Basic post length = (Footing depth– 40) + (Height above ground)

Get the footing depth from Page 10,and height above ground from:

Height of post above ground =

A + B + D

Where:

A = Height of infill sheet (Figure 6)

B = 50 mm ground clearance (Figure 6)

D = If a stepped installation: heightof the step (Figure 5)

v Select standard lengths

Use the table below to select thelengths you need to order. Thestandard lengths are 2400, 2700 and3000 mm.

Post lengths

ExampleGivens

1 Site at Karratha, Western Australia

2 Wind region: Region D

3 Soil type: Firm earth

4 Fence height: 1800 mm

Solution

Footing required is: 250 mm diameter x1000 mm deep (Figure 9).

Depth of footings

Select your minimum footingdepthYour fence posts must be embeddedin concrete footings of adequate size.Footings must not be placed inuncompacted fill. All footings in thefollowing table are 250 mm diameter.The footings are suitable for all terraincategories and both fence heights.

Post capsInstall post caps on all fence posts togive the perfect finishing touch and toprotect against any sharp edges.Choose your post caps based on yourpost configurations and personalpreference. Post caps must be screwfixed to NEETALOK standard posts.

NEETALOK fences

Rectangular domed caps are used onNEETALOK posts. LYSAGHT post caps areused on trims (NEETALOK standardposts).

Concrete 20 MPa minimum Taper top away from post

Foot

ing

dept

h

250 mm diameter

End of post to bottom of concrete: 40 mm minimum 150 mm maximum

epytlioS

,yalctfos,dnaShtraeesoolro

mrif,yalcmriFlevargrohtraeesoolfoevisulcxe(

)liospot)mm( )mm(

CnoigerdniW 0001 008

DnoigerdniW 0021 0001

7

Figure 9Footing dimensions

Footings

8

Making up fence posts

Figure 10Section assembly ofNEETALOK fence

Level or stepped NEETALOK fencesFix the bottom bracket to the posts,located as shown in Figure 10.

Raked NEETALOK fences• Drill posts for the top and bottom

raking adaptors (Figure 10).

• Lightly bolt the adaptors to theposts.

• Fix the bottom bracket to thebottom adaptor.

Post

PostInfil

l she

et

Top rail

Bottom rail

Top bracket

Bottom bracket

HOLES A 4 off hex. head

self drilling self tapping screws (each bracket)

12—14 x 20

Ground level

Underside of rail

Top of post

Post

PostInfil

l she

et

Nom

inal

fenc

e he

ight

15

00 o

r 18

00 m

m

(40 nom)

40

ARRANGEMENT FOR STEPPED AND LEVEL FENCES

ARRANGEMENT FOR RAKED FENCE ON SLOPING GROUND

SECTION Showing arrangement

for raking adaptor

Raking adaptor, 2 washers, galvanised bolt & self locking nut

Post

A

A

A

A

A

A

A

A

Drill post 10mm dia.

for bolt

9

Figure 12Placing remaining posts

Figure 11Stringline layout

Mixing your concrete

Thoroughly mix ingredients: 3parts 20 mm blue metal; 2.5 partssand; 1 part cement. Add waterand mix well before use. Premixedconcrete (20 MPa min.) may alsobe used.

w Place the first postIf the ground slopes, start at the highend.

Place the first post in its hole, fill thehole with wet concrete and firm inplace. Use a spirit level to ensure thepost is vertical. Check that the top ofthe post is at the calculated height.

Contour the top of the concrete sothat water flows away from the post.

Be careful that concrete doesn’tcontact the posts or rails aboveground.

x Place remaining postsPlace the second post in its hole andengage a bottom universal rail withthe first and second post.

Chock the bracket at each end toalign it with the stringline.

For raked NEETALOK fences, tighten therake adaptor nut.

Concrete the post as describedabove.

Check that the post is vertical and atthe correct height (Figure 12).

Continue installation of posts andbottom rails for the remainder of therun.

u Layout stringlines to positionyour fenceStringlines mark the outside line ofyour fence posts (Figure 11), and helpto set your fence posts at a uniformheight.

Determine the exact location of yourfence and setup a stringlinesupported by pegs. Keep thestringline taught and set at 50 mmabove the ground. Place the pegs500 mm beyond the corners of thefence, so as not to obstruct the holes.

v Layout posts and dig holesMark the position of fence postsalong your stringline at centres thatsuit your fence type and lay the postsbeside the stringline.

A fence panel can be reduced fromthe nominal width, without cuttinginfill sheets, by the increments shownin Figure 10. Rails and lattices mustbe cut to suit a narrow fence panel.

Dig the holes using the hole sizesdetermined from Page 12. The depthof holes shown excludes the top soil.Check that the top of each post willbe at the correct height.

Installing fence posts

First post

Second post

Spir

it le

vel

Ground level

H

Bottom universal rail

Posts set on inside of stringlines

Stri

nglin

e

Stringline

Peg

Peg

10

Figure 14Fixing infill sheet to rail

Figure 13Sheet overlaps

w Fixing infill sheets to rails

For all NEETALOK fences, fasten infillsheets, from one side, to both railswith screws at every rib (Figure 14).

u Allow concrete to dryWait for the concrete to dry beforeinstalling infill sheets. A minimum of24 hours is recommended

v Insert the infill sheets

Insert infill sheets into a bottomuniversal rail. Ensure that all sheetsoverlap correctly (Figure 13).

Insert a top universal rail between twoposts and over the top edge of theinfill sheets (Figure 10).

Place a rail support bracket to clampthe rail and fix it with four hex headscrews (Figure 10). If using rakingadaptors, tighten the nuts (Figure 10).

Continue installation of infill sheetsand universal rails for the remainderof the run.

Installing infill sheets

Rail

Infil

l she

et

Hex. head screw 12–14 x 45

190 mm 190 mm 190 mm

Minimum standard lap is as shown Panel widths can be reduced in 190 mm increments

Edge of sheet touches adjacent sheet

11

EnvironmentOur fences have good resistance toaccidental spillage of solvents, howeverthey should not be installed within onekilometre of marine, severe industrialor other corrosive environments.

Both freshwater and saltwaterswimming pools contain corrosivechemicals, and COLORBOND® pre-paintedsteel is not recommended for use inthese environments.

Fences must be installed clear of theground.

Post capsPost caps must be installed onto fenceposts to prevent water building upinside the post. LYSAGHT post caps are‘press to fit’ into the post.

MaintenanceMetal, timber & chemicalcompatibilityLead, copper, bare steel and greenor chemically-treated timber are notcompatible with this product; thusdon’t allow any contact of theproduct with those materials, nordischarge of rainwater from themonto the product.

Take care to avoid harmful chemicalscoming into contact with the fence—they include swimming pool or borewater, garden sprays, poisons,fertilisers and solvents. If there is anaccident, wash the fence immediatelywith fresh water.

If there are doubts about thecompatibility of products being used,get advice from our informationservice.

FastenersAll screws must conform to

AS 3566—1988, Class 3 or better.

Cleaning upIt is most important to sweep allmetallic swarf and other debris fromfence components at the end of eachday and at the completion of theinstallation. Failure to do this canlead to surface staining when themetal particles rust.

Be sure that the drainage slots in thebottom rails are clear.

Maintenance of your fenceMake sure that the posts and bottomrail of the fence are not in contactwith the ground and are kept free ofdirt and debris.

A regular hose down of your fence,at least at six-monthly intervals, willkeep the fence in good conditionand looking its best.

Storage and handlingKeep the product dry and clear ofthe ground. If stacked or bundledproduct becomes wet, separate it,wipe it with a clean cloth and stack itto dry thoroughly.

Handle materials carefully to avoiddamage: don’t drag materials overrough surfaces or each other; carrytools, don’t drag them; protect fromswarf.

Care of paintDo not touch up minor damage, suchas scratches, with paint. Minorscratches will not affect theperformance of your fence, becausethe coatings effectively protect anycut edges or scratches fromcorrosion.

CuttingFor cutting thin metal on site, werecommend a nibbler or power sawwith a metal-cutting blade becausethey produce fewer damaging hotmetal particles and leaves lessresultant burr than does acarborundum disc.

Cut materials over the ground and notover other materials.

© Copyright BlueScope Steel Limited 13 July 2004

LYSAGHT® NEETALOK®, NEETALOK® PLUS, COLORBOND® andZINCALUME® are trademarks of BlueScope Steel Limited

A.B.N. 16 000 011 058

The LYSAGHT® range of products is exclusively made byBlueScope Steel Limited trading as BlueScope Lysaght.

Information, brochures andyour local distributor

1800 641 417

Please check the latest informationwhich is always available at

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