grating catalogue - first time fabricationfirsttimefabrication.com.au/pdfs/ftf grating...

first time1stfabricationGrating Catalogue

SpecialiSt FabricationFTF ManuFacTuring

1

• Extensive product knowledge – We have over 20 years

involvement in the structural/grating fabrication industry

• Large Stock Inventory Levels – We carry an extensive

stock range in grating, stanchions and stair treads, all

available from our Perth Factory.

• Fast Project Turnaround Times – When you are on a tight

project schedule FTF is able to deliver a prompt production

service which consistently out performs our competitors.

• Personalized Service – At FTF your initial contact oversees

the whole project, from the quotation through to fabrication,

delivery and documentation.

• General Fabrication – FTF can also provide light to

medium General fabrication works and processing involving

highly repetitive type works.

• Rolling & Bending – Talk to your FTF Rep about our rolling

& bending capabilities to see if we can be of service to you.

“SpecialiST FabricaTion ServiceS To induSTry”

FTF can assist you in your next engineering project with our:

SpecialiSt Fabrication

conTenTS

2

Contents Page

How to order 3

Top treatment & finishes 4

Load/deflection tables 5 - 6

Stair treads 7

GrateShield & GrateMesh 8

Fastening Methods 9

Install Tolerances 10

Manufacturing Tolerances 11

Terminology/Glossary 12

Other Services 13

Capabilities 14

3

Example order code:

a 325 -1 M p g

Cro

ss b

ar p

itch

Fin

ish

Load

bar

siz

e

Load

bar

pitc

h

Mat

eria

l

Load

bar

trea

tmen

t

Choose the dimensions of the load bar in terms of height and width.

325

Select between a 50 and 100mm cross bar pitch (the distance between cross bars).

A B

Select between a 30, 40 or 60mm load bar pitch.

M SSelect between mild steel or stainless steel.

Mild Steel Stainless Steel

100mm 50mm

Indicates a height of 32mm and width of 5mm

SerieS 1 30mm

Use the information below to determine your order code.Specify whether the grating is to be banded or cut to size only, by referring to the terminology on page 12Nominate the number of panels required and provide dimensions for width and span of each panel. Span is always the last dimension.Where large floor areas are required provide a drawing of the area to be covered showing:

• grating type • dimensions • span • section size, location, and toe direction of the support steel • location and size of cut outs and removable areas • location of kick plate and nosings • indicate if penetrations are to be split

Span Direction• Grating and metal needs to be supported in a specific way. The direction that the load bar runs, or the span, is important for this. Refer to (page 12).• Span is always the last dimension given when referencing a panel size.• Grating has to be supported 90˚ to the span direction and does not require support on the other sides.

Select between plain or serrated load bars.

P S

Select between galvanised, bitumen dipped or untreated finishes.

G BGalvanised Bitumen Dipped U Untreated

Plain Serated

how To order

ordering guide

SerieS 2 SerieS 3 60mm40mm

load bar TreaTMenT

FiniSh

MaTerial

load bar piTch

load bar Size

croSS bar piTch

4

Top TreaTMenT & FiniSheS

FiniSheS

PlainOur standard grating comprises plain square edge flat load bars, with a 6mm square twisted bar, forge welded on top

of load bars. Although not required under AS 1657 the use of 10mm square bar cleats, every 300 - 400mm will provide for better slip resistance.

Steel grating can improve its slip resistance by placing them in such a way that you have to walk over the load bars.In steel grating there is a better slip resistance in patterns with 100mm cross rod centres.

SerratedAnother method for improving slip resistance is the use of serrated grating. The serrations are made up of small

notches cut into the load bar during the slitting of the material as one process, providing a low cost solution for improving slip resistance.

Top TreaTMenTS

Hot Dipped GalvanisedHot dip galvanising produces durable, abrasion resistant coating of metallic zinc alloy layers metalurgically bonded to

the steel base at a temperature of over 450˚

All hot dip galvanising conforms to equivalent following standardsAustralian/New Zealand Standard AS/NZS 4680:1999

British Standard BS729-1971American Standard ASTM-A123-73

Black Bitumen DippedAn economical paint finish which is best suited for indoor installations, or mining applications in a dry climate.

Note: there is no pre-treatment of steel before dipping. This finish is not recommended in corrosive environments.

Untreated (No surface treatment/protection)Normally supplied on stock mats or panels to customers who wish to perform their own fabrication on grating.

Example: 4475 x 1500 Platform

Shown here is a 4475mm (span) x 1500LBmm platform. The platform is made up of four 1500LB panels with a standard width of 995mm, with one make up panel cut to the nearest

load bar (455mm width). The balance allows for gaps of up to 10mm between panels.

SaMple order1500 m

m

995 455995995 995

load bar direcTion

IMPORTANT

When designing and ordering your grating panels check the direction of the load

bars. As their name suggests load bars take all the weight placed on the grating panel. The cross bars are only intended

to hold the load bars together and to help provide traction. It is the resposability of

the designer/client to ensure that the load bar span is running in the correct

direction.CORRECT DESIGNLoad bar direction is across the span.

WRONG DESIGNThis panel will collapse due to lack ofsupport at the ends of the load bars.

5

Load bar code Load bar size (mm) Serrated edge conversion factor

203 20x3 NOT RECOMENDED205 20x5 NOT RECOMENDED253 25x3 0.876255 25x5 0.876 323 32x3 0.902325 32x5 0.902403 40x3 0.922405 40x5 0.922455 45x5 0.930505 50x5 0.937555 55x5 0.943655 65x5 0.951

Load bar code

Load bar size (mm) Series

Maximum span for various loads (with 5 mm deflection)

2.5kPa 4.0kPa 5.0kPa 7.5kPa

203 20x3Series 1 1190 1055 1010 905Series 2 1120 1000 945 860Series 3 1140 1020 965 875












Conveyer walkways / Light access platforms 2.5kPa

Standard Australian pedestrian platform loading 4.0kPa

Brittish Standard pedestrian platform loading 5.0kPa

Boiler house platform loading, esp. Power Stations 7.5kPa

Maximum loads for various standards.

Maximum span in mm for to allow for various loads with a 5.00 mm deflec-tion.

Multiply span by the appropriate conversion factors to determine maximum span for various loads (with 5mm deflection).

load/deFlecTion TableS

Typical applicaTion loading

MaxiMuM Span To load

SerraTed edge converSion

6

ProductLoadBar Size

Masskg/m2

U - kPa

D

Span (mm) 4kPa 5mm

Defl span450 600 750 900 1050 1200 1500 1800 2100 2400 2700 3000 3300 3600

A203/2 20x3 14.3U 34 19 12 8 6 5 3 2

980D 1.8 3.2 5 7.2 9.8 12.9 20.1 29

B205/3 20x5 18.2U 36 20 13 9 6 5 3 2

1010D 1.8 3.2 5 7.2 9.8 12.9 20.1 29

A203/1 20X3 18.2U 45 25 16 11 8 6 4 3 2

1060D 1.8 3.2 5 7.2 9.8 12.9 20.1 29 39.4

A205/2 20X5 22.2U 56 32 20 14 10 8 5 3 2

1120D 1.8 3.2 5 7.2 9.8 12.8 20.1 28.9 39.4

A253/2 25X3 17.3U 53 30 19 13 10 7 5 3 2

1170D 1.4 2.6 4 5.8 7.9 10.3 16.1 23.2 31.5

A205/1 20X5 28.7U 74 42 27 18 13 10 6 4 3

1200D 1.8 3.2 5 7.2 9.8 12.8 20.1 28.9 39.4

B255/3 25X5 21.5U 56 32 20 14 10 8 5 3 2

1200D 1.4 2.6 4 5.8 7.8 10.2 16.0 23.1 31.5

A253/1 25x3 22.2U 70 39 25 17 13 10 6 4 3 2

1250D 1.4 2.6 4 5.8 7.8 10.3 16.0 23.1 31.5 41.5

A255/2 25X5 27.1U 88 49 31 22 16 12 8 5 4 3

1320D 1.4 2.6 4 5.8 7.8 10.2 16.0 23.1 31.5 41.2

A323/2 32X3 21.4U 87 49 31 21 16 12 8 5 4 3 2

1400D 1.1 2 3.1 4.5 6.1 8.0 12.5 18.1 24.6 32.1 40.7

A255/1 25X5 35.2U 115 65 42 29 21 16 10 7 5 4 3

1420D 1.4 2.6 4 5.8 7.8 10.3 16.0 23.1 31.5 41.1 49.6

B325/3 32X5 21.4U 92 52 33 23 17 13 8 6 4 3 2

1440D 1.1 2 3.1 4.5 6.1 8.0 12.5 18.0 24.6 32.1 40.7

A323/1 32X3 27.7U 114 64 41 28 21 16 10 7 5 4 3

1510D 1.1 2 3.1 4.5 6.1 8.0 12.5 18.0 24.6 32.1 40.7

A325/2 32X5 34.0U 144 81 52 36 26 20 13 9 6 5 4

1590D 1.1 2 3.1 4.5 6.1 8.0 12.5 18.0 24.6 32.1 40.7

A403/2 40X5 26.1U 135 76 49 34 25 19 12 8 6 4 3

1660D 0.9 1.6 2.5 3.6 4.9 6.4 10 14.5 19.7 25.7 32.6

B405/3 40X5 31.1U 144 81 52 36 26 20 13 9 6 5 4 3

1700D 0.9 1.6 2.5 3.6 4.9 6.4 10 14.5 19.7 25.7 32.6 40.2

A325/1 32X5 44.4U 190 107 68 47 35 26 17 11 8 6 5

1710D 1.1 2 3.1 4.5 6.1 8.0 12.5 18 24.6 32.1 40.7

A403/1 40X3 33.9U 179 100 64 44 33 25 16 11 8 6 5 4

1780D 0.9 1.6 2.5 3.6 4.9 6.4 10 14.5 19.7 25.7 32.6 40.2

A404/2 40X5 41.8U 226 127 81 56 41 31 20 14 10 8 6 5

1890D 0.9 1.6 2.5 3.6 4.9 6.4 10 14.4 19.7 25.7 32.5 40.2

A405/1 40X5 54.8U 298 167 107 74 52 41 26 18 13 10 8 6

2030D 0.9 1.6 2.5 3.6 4.9 6.4 10 14.5 19.7 25.7 32.6 40.2

A455/2 45X5 46.7U 286 160 102 71 52 40 25 17 13 10 7 6 5

2030D 0.8 1.4 2.2 3.2 4.3 5.7 8.9 12.9 17.5 22.9 29.0 35.8 43.2

A455/1 45X5 61.4U 377 212 135 94 67 52 33 23 17 13 10 8 6

2175D 0.8 1.4 2.2 3.2 4.3 5.7 8.9 12.8 17.5 22.8 28.9 35.8 43.2

A505/2 50X5 51.5U 353 198 127 88 64 49 31 22 16 12 9 7 6 5

2200D 0.7 1.3 2 2.9 3.9 5.1 8.0 11.5 15.7 20.5 26.0 32.1 38.9 46.3

A505/1 50X5 67.9U 465 261 167 116 85 65 41 28 21 16 12 10 8 7

2350D 0.7 1.3 2 2.9 3.9 5.1 8.0 11.5 15.7 20.5 26.0 32.1 38.9 46.3

A655/1 65X5 87.5U 787 442 283 196 144 110 70 48 35 27 21 17 14 11

2825D 0.5 1 1.6 2.2 3.0 4 6.1 8.9 12.1 15.8 20.0 24.8 29.9 35.6

A755/1 75X6 120.2U 1049 500 387 262 193 147 94 66 48 37 29 24 20 16

3250D 0.46 1 1.3 1.8 2.5 3.2 5.1 7.3 10.0 13.0 16.5 20.4 24.7 29.4

U = Safe uniformly distributed load in kPa D = Deflection in mm at mid span due to USpans to the left of the red line have a deflection of less than 5mm for a 4kPa uniformly distributed load.

• For galvanised fabrication add 14% to the mass shown. See page 4 for more details.• Stainless Steel will be provided in either 30x5 or 32x5 depending on availability.

• Other combinations of pattern and bar size avilable to order.

load/deFlecTion TableS

STeel graTing load/deFlecTion Table

7

Type T5Welded fixing Banded ends

Abrasive nosing

STair TreadS

Stair treads can be supplied in any load bar/pitch configuration required. The treads shown here are for illustrative purposes only. Overall tread length can be made to any dimension. We suggest that tread width be selected from the table below with its recommended widths.

Wear rates are higher on stair treads than on general flooring due to concentrated impacts resulting in bowed treads. FTF recommends that stair treads never have less than a 25 x 5 Load Bar size, regardless of main flooring depth.

For safety and strength reasons, Nosing Bars should be specified. To the eye, when walking on grating stairways, grating patterns tend to merge with the result that tread edges become ill defined causing over or under stepping by users. Strength at the front of the tread is increased with Nosing Bars. Also deflection resistance of the tread from impact loads is improved.

Recommended Widths

Series 1 125 155 185 215 245 275 305Series 2 125 165 205 245 285 325Series 3 185 245 305

Bolted Connections‘A’ 45 75 75 100 100 125 125

STair TreadS

RecommendedWidth

Fron

t

25

50

‘A’

End plate 65 x 5mm flat with 14mm diam holes

Note: Special end plate hole centres available on request.

Standard end plate for bolted threads.

Load bar size (mm)Recommended max length (mm)

Series 1 Series 2 Series 3

25 x 5 900 750 50032 x 5 1300 1200 80040 x 5 1600 1500 1300

When ordering treads nominate type of grating required.Example – T3 – 750 x 275 (Made from A325/1 Grating)


Floor Plate nosing


No nosing

Type T4Bolted Fixing

Holed end platesFloor Plate

nosing


Holed end platesAbrasive nosing


Holed end platesNo nosing

graTeShield & graTeMeSh

8

graTeShield

how To order

how To order

GrateShield is a merged floor grating with Chequer plate welded on top of the grating. Designed for high impact floor areas it is an economical alter-native to using traditional floorplate systems while keeping weight down to a minimum. Series 1 grating is recommended but other configurations can be supplied

GrateMesh is a merged floor grating with a light gauge expanded mesh welded on the underside on top of the grating depending on require-ments. Designed to stop small objects or tools from falling through the grating. If welded on top it is ideal for mezzanine floors with wheeled trol-leys and also stops rubbish collecting between load bars.

Product Floor Grating Weight untreated kg/sqm Span at 4kPa UDL 5mm deflection

GS3-255/1MP 3mm 255/1MP 44.49 1390mmGS5-325/1MP 5mm 325/1MP 64.78 1625mm

graTeMeSh

1. Choose the product type required by reference to the recommen-dations shown above.

Or choose a grating by using the pattern choices on page 3 and choose an appropriate Load Bar from the Load/Deflection Table on page 5 & 6.

2. Add the required finish from page 4.

3. Nominate the required thickness of the floorplate.

Examples:GS3-325/3MP32 x 5mm load bar, 60mm pitch mild steel(1 piece A x B span)

1. Select a grating from the pattern choices on page 3 and choose an appropriate Load Bar from the Load/Deflection Table on page 5 & 6.

2. Add the required finish from page 4.

3. Prefix your choice

GM Examples:GM-A255/1MPGAll as per drawing supplied.The standard mesh supplied is a flattened Expanded MetalSWM 12mm x LWM 30mm.

9

Illustration 3 - Series 3 grating



The most effective and economical way for fastening grating is to weld it to the support steelwork. Recommended weld is 5mm fillet at 1000mm centres.

If panels are required to be removable or grating damage may regularly occur then fixing clips are recommended. Our clips come in galvanised finish. A minimum of 4 clips per panel or per sqm.

Once placed down grating panels should immediately be fixed as they will often move or drift unknowingly off supporting steelwork.

Illustrations 1-3Illustrations 1, 2 and 3 show the FTF Universal Clip (comprising of a double saddle clip, 8mm diameter cheese head screw and bottom clamping bracket) in use on Series 1, 2 and 3 gratings respectively.

FaSTening MeThodS

FaSTening MeThodS

IMPORTANTTo avoid any risk of accident it is recommended that panels used for temporary access during construction or mainenance of a site are lightly tack-welded to supporting steelwork before use. Unfixed panels are likely to shift gradually as a result of constant traffic and may fall or tip.

Illustrations 4The FTF Universal Clip is suitable for joining grating panels as well as fixing them down.

Illustrations 5FTF universal top clip used with self drilling or thread cutting screws. Can also be used in locations where there is no open flange on the supporting steelwork to clamp to.

inSTallaTion ToleranceS

Fabrication Welding

Banding bars and attachments are welded

with a minimum 3mm fillet to one side of:

every 5th load bar on Series 1 gratings



Other welding is applied to cut-outs, splays

or circles as appropriate or as requested.

10

inSTallaTion clearanceS

10mm nom.10mm nom. 10mm nom.

15mmMin clearance equal to rebate angle thickness

Span Span

Support

Actu

al c

utou

t will

be

to n

eare

st lo

ad b

ar

Wid

th

10mm Nominal

10mm Nominal

25mm Bearing minimum (Typical)

Load Bar(Typical)

10mm Nominal

Load Bar(Typical)

Cut-outs around pipes and circular ducts to have minimum clearance of 25mm all round and will be opened out to nearest standard pipe size

NOTE:clearance can vary relative to rebate angle straightness

11

diMenSionS & SquareneSS

croSS bar locaTion load bar lean

A and A1 are the overalldiagonal dimensions

1mm in 10mm

3mm

1.5m

m

Load bars1/10

0 of

wid

thW

idth

+/-

3m

m

Length + 0 - 3mm1mm in 25mm

TranSverSe bow

Span +/- 6mm

Wid

th (W

)+/-

6m

m

A

A1 = A +/- 6mmW

1 =

W +

/- 6

mm

W and W1 are thedimensions across Load Bars at oppositeend of panel

croSS bar alignMenT & Spacing

longiTudinal bow

STair Tread STair Tread end FlaT lean

Edge Bars and attachments are welded witha minimum 3mm fillet weld to one side of:Every 5th Load Bar on Series 1 GratingEvery 4th Load Bar on Series 2 GratingEvery 3rd Load Bar on Series 3 Grating

FabricaTion welding

ManuFacTuring ToleranceS

1000

mm

nom

inal

5mm

± 6mm centre to centre of crossrods measured randomly across 1500mm in length

1/20

0 of

leng

th

Load bars

1/10

0 of

wid

th

TerMinology/gloSSary

Cut OutGrating areas removed from panel to permit passage for installa-tion of pipes, plant and structural and handrail items.

PenetrationsAs for cut out but typically within the grating panel and not on the edge.

SerrationsSmall notches made in the top edge of the load bar to assist in slip resistance.

Kick PlateHeavy section flat bar welded to ends or sides of panels and around cut outs, etc. when specified. Top edge to be 100mm above grating generally and is typically 130 x 6.

NosingA member attached to or on the leading edge of a stair tread or at the top of a flight of stairs to assist slip resistance and to give a clear visual indication of the start of the flight.Can be• Floor Plate• Yellow Abrasive

12

graTing parTS

BandedRefers to the process of welding a flat bar (normally 5mm) to the loadbars after they have been cut to size to provide a uniform appearance around all sides of a grating panel. This process also helps prevent injury from laceration during installation and assists in keeping the panels flat.

Cut to Size OnlyRefers to the process of leaving the panels with a raw cut edge and not banded as described above.

Exact SizeRefers to the requirement to make the panels to an exact dimen-sion and not to be adjusted to the nearest width across the standard pattern of the load bars.

Gross AreaThe total area of a panel based on its width and span (regard-less of cut outs) as shown above. This area is always used when calculating invoices.

WidthOverall dimension of a panel measured at right angles to the load bars. Always called “Width” even if greater than the length.

SpanSpan refers to the lenght of a panel along the load bar, as shown above.

Load BarLoad bars are the flat metal bars which are the basis of grating

Cross BarA square bar twisted to form

This is a twisted square bar forged into the top of the load bar.

proceSSeS

opTional FeaTureS

MeaSureMenTS

13

oTher ServiceS

FTF provides a variety of services catering to the metal services industry including;

Stanchions & HandrailingFirst Time Fabrications handrail and balustrade system with its wide range of standard components forms an economical, strong and simple form of handrail and balustrade. FTF can supply stanchions either loose or in prefabricated panels to your specific needs, providing you with safe access to all areas. We can provide stanchion/prefabricated panels in galvanised steel, aluminium or stainless steel to suit your requirements.

General FabricationFTF can also provide light to medium General fabrication works and processing involving highly repetitive type works.

Conveyor/Safety GuardsFrom fully enclosed units to simple side guards with mesh FTF has expertise in the manufacture of conveyor/safety guards, providing a cost effective alternative to manufacturing them in house, leaving you to focus on your core business manufacturing.

Pipe BendingFTF has extensive experience in pipe bending, we can provide most types of bends required and can cope with high volume bending projects.

Pipe/Plate RollingFTF can provide rolling services for both mild steel plate and pipe, contact your FTF rep for more information on our capabilities.

FTF ManuFacTuring“caTering To all The MeTal ServiceS induSTry”

14

FTF capabiliTieS

capabiliTieS

Bandsaw

Bandsaw

Dual Head Pipe Bender

4 Head Stanchion Drill

Cropper

Pipe Rollers

Presses

Semi Auto Hydraulic Cold Saws

Pipe Bender

Dot Peen

Cosen 300NC Bandsaw Pipe Dream

First Time Fabrication

Ph (08) 9452 7806Fax (08) 9459 9956

[email protected]

Unit 3, 2 Baltic CourtMaddington 6109 WA

FRPFibre Reinforced Plastic (FRP) grating is a moulded, one-piece fibreglass reinforced plastic grating, available in standard panels or fabricated into panels of the shape you require to fit your floor.

HandrailingFirst Time Fabrications handrailing system is an economical, strong and simple form of handrailing. Specifically manufactured to suit Australian Standards and conditions, it is equally at home in industrial, commercial, municipal and general applications.

iTreadiTread is a tough walkway system designed for aggressive environments. Use it to safely access rooftops, access platforms, factory environments: all those hard to reach destinations it might otherwise be too dangerous to venture.

Designed to be lightweight and easy to handle, iTread is simple and quick to install. Manufactured from robust aluminium alloy this walkway system is strong, and best of all, the system is corrosion and maintenance free. Versatile, resilient, and built to last, iTread is the single solution to your walkway needs.

grating catalogue - first time fabricationfirsttimefabrication.com.au/pdfs/ftf grating...

Documents