Grating Catalogue

8/16/2019 Grating Catalogue

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Grating Catalogue


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FTF M ANUFACTURING

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• 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.

“S PECIALIST F ABRICATION S ERVICES TO I NDUSTRY ”

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


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CONTENTS

2

Contents Page

How to order 3

Top treatment & nishes 4

Load/deection 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


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3

Example order code:

A 325 -1 M P G

C r o s s

b a r p

i t c

h

F i n i s h

L o a

d b a r s

i z e

L o a d

b a r p

i t c

h

M a

t e r i a

l

L o a

d b a r

t r e a

t m e n

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 S

Select between mild steel or stainless steel.

Mild Steel Stainless Steel

100mm 50mm

Indicates a height of 32mm and width of 5mm

S ERIES 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 oor 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 specic 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 nishes.

G BGalvanised Bitumen Dipped U Untreated

Plain Serated

HOW TO ORDER

ORDERING GUIDE

S ERIES 2 S ERIES 3 60mm40mm

LOAD BAR TREATMENT

FINISH

MATERIAL

LOAD BAR PITCH

LOAD BAR SIZE

CROSS BAR PITCH


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TOP TREATMENT & FINISHES

FINISHES

PlainOur standard grating comprises plain square edge at 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 providefor 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 forimproving 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 nish 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 nish 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 four1500LB panels with a standard width of 995mm, with one make up panel cut to the nearestload bar (455mm width). The balance allows for gaps of up to 10mm between panels.

SAMPLE ORDER

1 5 0 0 mm

995 455995995 995

LOAD BAR DIRECTION

IMPORTANT

When designing and ordering your gratingpanels check the direction of the load

bars. As their name suggests load barstake all the weight placed on the gratingpanel. The cross bars are only intended

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

the designer/client to ensure that theload 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.


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

203 20x3 NOT RECOMENDED

205 20x5 NOT RECOMENDED

253 25x3 0.876

255 25x5 0.876

323 32x3 0.902

325 32x5 0.902

403 40x3 0.922

405 40x5 0.922

455 45x5 0.930

505 50x5 0.937

555 55x5 0.943

655 65x5 0.951

Load barcode

Load barsize (mm) Series

Maximum span for various loads (with 5 mm de ection)

2.5kPa 4.0kPa 5.0kPa 7.5kPa

203 20x3

Series 1 1190 1055 1010 905

Series 2 1120 1000 945 860

Series 3 1140 1020 965 875

205 20x5

Series 1 1355 1210 1155 1040

Series 2 1290 1140 1065 975

Series 3 1185 1050 1005 895

253 25x3

Series 1 1430 1265 1195 1060

Series 2 1320 1180 1125 1010

Series 3 1375 1195 1140 1030

255 25x5

Series 1 1610 1435 1350 1225

Series 2 1490 1335 1265 1150

Series 3 1375 1195 1140 1030

323 32x3

Series 1 1740 1616 1440 1306

Series 2 1600 1420 1340 1200

Series 3 1420 1275 1195 1085

325 32x5

Series 1 1940 1720 1630 1480

Series 2 1790 1600 1510 1375

Series 3 1640 1445 1355 1230

403 40x3Series 1 2020 1790 1695 1530Series 2 1880 1685 1580 1435

Series 3 1700 1495 1420 1285

405 40x5

Series 1 2290 2035 1936 1746

Series 2 2115 1900 1790 1620

Series 3 1925 1700 1615 1460

455 45x5

Series 1 2450 2226 2100 1905

Series 2 2315 2070 1950 1770

Series 3 2070 1860 1760 1590

505 50x5

Series 1 2700 2400 2280 2060

Series 2 2610 2230 2110 1920

Series 3 2220 1860 1760 1590

555 55x5

Series 1 2900 2680 2440 2210

Series 2 2690 2400 2250 2060

Series 3 2420 2130 2040 1845

655 65x5

Series 1 3255 2930 2770 2605

Series 2 3045 2720 2560 2315

Series 3 2745 2445 2330 2090

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 forvarious loads with a 5.00 mm deec-tion.

Multiply span by the appropriateconversion factors to determinemaximum span for various loads(with 5mm deection).

TYPICAL APPLICATION LOADING

MAXIMUM SPAN TO LOAD

SERRATED EDGE CONVERSION


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ProductLoadBarSize

Mass

kg/m2

U- kPa

D

Span (mm) 4kPa5mm

De 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 21.5 U 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 = Deection in mm at mid span due to USpans to the left of the red line have a deection 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


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Type T5Welded xingBanded ends

Abrasive nosing

STAIR TREADS

Stair treads can be supplied in any load bar/pitch congurationrequired. The treads shown here are for illustrative purposesonly. Overall tread length can be made to any dimension. Wesuggest that tread width be selected from the table below withits recommended widths.

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

For safety and strength reasons, Nosing Bars should bespecied. To the eye, when walking on grating stairways,grating patterns tend to merge with the result that tread edgesbecome ill dened causing over or under stepping by users.Strength at the front of the tread is increased with Nosing Bars.Also deection resistance of the tread from impact loads isimproved.

Recommended Widths

Series 1 125 155 185 215 245 275 305

Series 2 125 165 205 245 285 325

Series 3 185 245 305

Bolted Connections

‘A’ 45 75 75 100 100 125 125

STAIR TREADS

RecommendedWidth

F r o n

t

25

5 0

‘A’

End plate 65 x5mm at with14mm diam holes

Note: Special end plate hole centres available onrequest.

Standard end plate for bolted threads.

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

Series 1 Series 2 Series 3

25 x 5 900 750 500

32 x 5 1300 1200 800

40 x 5 1600 1500 1300

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


Floor Platenosing


No nosing

Type T4Bolted Fixing

Holed end platesFloor Plate

nosing


Holed end platesAbrasive nosing


Holed end platesNo nosing


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GRATESHIELD & GRATEMESH

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G RATE S HIELD

HOW TO ORDER

HOW TO ORDER

GrateShield is a merged oor grating with Chequer plate welded on top ofthe grating. Designed for high impact oor areas it is an economical alter-native to using traditional oorplate systems while keeping weight downto a minimum. Series 1 grating is recommended but other congurationscan be supplied

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

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

GS3-255/1MP 3mm 255/1MP 44.49 1390mm

GS5-325/1MP 5mm 325/1MP 64.78 1625mm

G RATE M ESH

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 andchoose an appropriate Load Bar from the Load/Deection Table onpage 5 & 6.

2. Add the required nish from page 4.

3. Nominate the required thickness of the oorplate.

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 anappropriate Load Bar from the Load/Deection Table on page 5 & 6.

2. Add the required nish from page 4.

3. Prex your choice

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


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Illustration 3 - Series 3 grating



The most effective and economical way for fastening gratingis to weld it to the support steelwork. Recommended weld is5mm llet at 1000mm centres.

If panels are required to be removable or grating damagemay regularly occur then xing clips are recommended. Ourclips come in galvanised nish. A minimum of 4 clips perpanel or per sqm.

Once placed down grating panels should immediatelybe xed as they will often move or drift unknowingly offsupporting steelwork.

Illustrations 1-3Illustrations 1, 2 and 3 show the FTF Universal Clip(comprising of a double saddle clip, 8mm diameter cheesehead 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 thatpanels used for temporary access during construction ormainenance of a site are lightly tack-welded to supportingsteelwork before use. Unxed panels are likely to shiftgradually as a result of constant traffic and may fall or tip.

Illustrations 4The FTF Universal Clip is suitable for joining gratingpanels as well as xing them down.

Illustrations 5FTF universal top clip used with self drilling or threadcutting screws. Can also be used in locations where thereis no open ange on the supporting steelwork to clamp to.


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INSTALLATION TOLERANCES

Fabrication Welding

Banding bars and attachments are welded

with a minimum 3mm llet 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.

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INSTALLATION CLEARANCES

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

15mmMin clearance equal torebate angle thickness

Span Span

Support

A c t u a

l c u t o u

t w i l l b e

t o n e a r e s

t l o a

d b a r

W i d t h

10mm Nominal

10mm Nominal

25mm Bearingminimum (Typical)

Load Bar(Typical)

10mm Nominal

Load Bar(Typical)

Cut-outs around pipes and circular

ducts to have minimum clearanceof 25mm all round and will beopened out to nearest standardpipe size

NOTE:clearance can vary relative torebate angle straightness


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DIMENSIONS & SQUARENESS

CROSS BAR LOCATION LOAD BAR LEAN

A and A1 are the overalldiagonal dimensions

1mm in 10mm

3mm

1 . 5 m m

Load bars 1 / 1 0 0 o f w

i d t h

W i d t h + / -

3 m m

Length + 0 - 3mm1mm in 25mm

TRANSVERSE BOW

Span +/- 6mm

W i d t h ( W ) + / - 6 m m

A

A 1 = A + / - 6 m m

W 1 =

W +

/ - 6 m m

W and W1 are thedimensions acrossLoad 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 llet 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

1 0 0 0 m m n o m

i n a l

5mm

± 6mm centre to centre of crossrodsmeasured randomly across 1500mmin length

1 / 2 0 0 o f

l e n g

t h

Load bars

1 / 1 0 0 o f w

i d t h


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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 theedge.

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

Kick PlateHeavy section at bar welded to ends or sides of panels andaround cut outs, etc. when specied. Top edge to be 100mmabove grating generally and is typically 130 x 6.

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

12

GRATING PARTS

BandedRefers to the process of welding a at bar (normally 5mm) to theloadbars after they have been cut to size to provide a uniformappearance around all sides of a grating panel. This process alsohelps prevent injury from laceration during installation and assistsin keeping the panels at.

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 thestandard 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 usedwhen calculating invoices.

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

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

Load BarLoad bars are the at metal bars which are the basis ofgrating

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


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OTHER SERVICES

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

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

General Fabrication

FTF can also provide light to medium General fabrication works and processinginvolving highly repetitive type works.

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

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

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

FTF M ANUFACTURING “C ATERING TO ALL THE METAL SERVICES INDUSTRY ”


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FTF C APABILITIES

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


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First Time Fabrication

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

[email protected]

Unit 3, 2 Baltic CourtMaddington 6109 WA

FRP

Fibre Reinforced Plastic (FRP) grating is a moulded, one-piece breglassreinforced plastic grating, available in standard panels or fabricated intopanels of the shape you require to t your oor.

Handrailing

First Time Fabrications handrailing system is an economical, strong andsimple form of handrailing. Specically manufactured to suit AustralianStandards and conditions, it is equally at home in industrial, commercial,municipal and general applications.

iTread

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

Designed to be lightweight and easy to handle, iTread is simple and quickto install. Manufactured from robust aluminium alloy this walkway system isstrong, 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.

Documents

Grating Catalogue