Grating World Brochure

a world
of grating
solutions

WE PUT THE GREAT IN GRATING

a world of grating solutions

GRATING WORLD is a member of a GRATEX® 3
specialised equipment group which has TREADEX® 15
provided solutions for engineers, architects, 17
designers and end-users since 1956 … from 19
minerals beneficiation, petrochemicals and
chemicals, pulp and paper, foods and
beverages, to construction.

GRATING WORLD is dedicated to being FLOOREX®
southern Africa’s one-stop source for
world-class solutions in access platforms,
walkways, stairtreads, handrailing, flooring
and steelwork in Carbon Steel, Stainless
Steel (3CR12, 304, 316), and Composites (FRP).

GRATING WORLD focuses on practical and RAILEX®
aesthetic engineering design, with advanced
technology and a wide product range, to
provide you with cost-effective,
value-engineered solutions.

GRATING WORLD has decades of valuable
experience in design and fabrication to offer
off-the-shelf and customised solutions.

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GRATEX® 3

WE PUT THE GREAT IN GRATING

GRATING STANDARDS

GRATEX® grating products are manufactured to the ISO 9001:2008 Quality Management System and
comply with the following standards:

Steel Grating Steel Product Hot Galvanising FRP Grating
Standards Standards Standards Standards

USA ANSI/NAAMM (MBG531-88) ASTM (A36) ASTM (A123) ASTM (E84)
UK BS4592-1987 BS4360 (43A) ISO 1461

GRATEX® grating products offer solutions in three material types to suit specific applications:

CARBON STEEL An economical solution in non-aggressive environments
STAINLESS STEEL For corrosion resistance, low maintenance and strength
FIBREGLASS (FRP) For lightness, ease of installation and long life

GRATEX® grating is available in a variety of finishes to suit practical and aesthetic needs.
For safety, the anti-slip options are excellent, with metal grating featuring serrated bearer bars and
ridged transverse bars; and composite grating being available with a silica grit finish.

PEDESTRIAN LOAD CONDITIONS

LIGHT DUTY MAINTENANCE PLATFORM kN/m2 kg/m2
MEDIUM DUTY PEDESTRIAN PLATFORM (2 PERSONS) 2.5 250
HEAVY DUTY PEDESTRIAN - CROWDED 3.0 300
FACTORY, WORKSHOP, TROLLEY PASSAGES 4.0 400
HEAVY LOADING AREA, BOILER EQUIPMENT, PLANT AREA 5.0 500
7.5 750

IMPORTANT NOTES

1. SELECTION CRITERIA
1. Select appropriate grating material depending on service conditions
2. Determine applicable load conditions and impact factors
3. Determine the span of grating support structure
4. Select appropriate GRATEX® from the Load/Span Tables

2. LOADINGS
1. U, kg/m2, maximum allowable unfactored uniformly distributed loading for that stated span
2. C, kg/m, maximum allowable unfactored centre line load per metre
3. Load/Span Tables based on elastic deflections of span/200 or 10mm, whichever the lesser when subjected to the
specified unfactored load using Young’s modulus, 200x109 Pa
4. For serrated grating reduce tabulated allowable loads by 10% and maximum span per load category by 3.5%
5. All table loadings to be taken as nominal and should not be used as guaranteed values
6. Appropriate safety factors must be applied by the designer

3. ALLOWANCES
1. Galvanising will increase stated mass per square metre by approximately 8 – 10%
2. Banding will increase mass by approximately 6% depending on grating configuration

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GRATEX® 4

WE PUT THE GREAT IN GRATING

GRATING DEFINITIONS Thickness Toe plate (Kick plate)
Thickness of loadbearing bar Edge of grating above top
Bearer bar of bearer bars
Longitudinal loadbearing bar
spanning between supports

Serrated bearer bar Banding Depth
Bearer bar with serrated Bar or section fixed to the edge Overall depth of
top surface for increased of the grating, flush with the top loadbearing bar
skid resistance of the bearer bar

Transverse bar Nosing
Bar fixed at right angles to Member attached to the front
loadbearing bars to provide edge of stair tread or to a
lateral restraint grating at the head of a stair

Pitch Curb angle TRANSVERSE BAR
Distance centre-to-centre of Support frame fixed to concrete PITCH
loadbearing bars or between centres or steelwork around perimeter
of lateral restraint (transverse bar) of grating

Cut out (Tailored panels) TRANSVERSE BAR BEARER BAR
Area where grating has been removed BEARER BAR LENGTH (SPAN) DEPTH
to permit service, plant or structural
members to pass through or to clear BEARPEIRTCBHAR
obstructions
BEARER BAR
Width THICKNESS
Overall width of grating
mearsured at right angle to
the loadbearing bars

Length (Span)
Overall length of grating measured in
a direction parallel to the bearer bars.
Effective span is the span between
members supporting grating

GRATEX® GRATING PRODUCT CODE DESCRIPTION

C F 30 / 4.5 / 40 / 100 P O B

Surface finish: U – Uncoated
. B - Bitumenised
. G - Galvanised

Panel Type: O - Open ended
C - Closed (Banded)

Bearer bar type: P – Plain; S – Serrated; I – I-profile

Transverse bar pitch (mm): 50, 100

Bearer bar pitch (mm): 30, 40, 60, 80

Bearer bar thickness (mm): 3, 4.5, & I (6 x 8, 7 x 12)

Bearer bar depth (mm): 25, 30, 35, 40, 50, 75

Type of manufacture: F – Forgeweld; P – Punched N.B. Special sizes and pitches
Type of material: C – Carbon Steel; S – Stainless Steel (3CR12, 304, 316) are available on request

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GRATEX® CS 5

GW40® CARBON STEEL GRATING

Around the world … whether the United States, Standard panels are:

Europe, or the Far East … the definitive 1000mm x 2500mm 1250mm x 2500mm

international grating standard. Jig assembly and 1000mm x 3000mm 1250mm x 3000mm

automatic resistance welding (forgewelding) 1000mm x 5000mm 1250mm x 5000mm

creates structurally rigid grating, with load 1000mm x 6000mm 1250mm x 6000mm

bearing bars and transverse bars fused under

pressure. There’s no need for the manual Special sizes and customising are available on

assembly, punching, threading and swaging request. Finishes include mill (standard), coated

previously used for South African grating. (painted or powder coated), bitumenised, and

GRATING WORLD now brings you FORGEWELD® galvanised.

GW40® resistance heated and fused CARBON

STEEL GRATING with special 6mm and 8mm twisted TRANSVERSE BAR

transverse bars for improved skid resistance. BEARER BAR PITCH TRANSVERSE BAR PITCH
Serrated edge load bearing bars may be specified BEARER BAR THICKNESS
for especially slippery conditions.
Without a doubt, FORGEWELD® GW40® CARBON

STEEL GRATING offers the most economical

solution for most environments. BEARER BAR
Still not sure? Ask us for a head-on physical DEPTH
demonstration of the two grating types.
BEARER BAR LENGTH (SPAN)
SFAIXDINDGLECCLLIPIP

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GRATEX® CS 6

GW40® CARBON STEEL GRATING

FORGEWELD® GW40® SERRATED CARBON STEEL GRATING FORGEWELD® GW40® WHEELS ‘N HEELS - NARROW GAP CARBON STEEL GRATING

FORGEWELD® GW40® UNSERRATED CARBON STEEL GRATING

LOAD/SPAN TABLES

BEARER BAR SPAN (mm)

APPROX LOAD 600 750 900 1000 1250 1500 1750 2000 2250 2500 LOAD MAX
MASS m2 3 3.75 4.5 10 10 10 CAT SPAN (mm)
SIZE CODE UNBANDED C = kg/m DEFLECTION (mm) kN/m2 FOR LOAD
UNGALVANISED U = kg/m2 CATEGORY
5 6.25 7.5 8.75

25/3/40/50 20.4 C 1276 816 566 459 294 204 3 1350
25/3/40/100 17.5 5 1140
U 3401 1741 1008 735 376 217 7.5 1000
30/3/40/50 23.3 3 1620
30/3/40/100 20.6 C 2206 1412 981 794 508 353 259 5 1570
7.5 1200
35/3/40/50 27 U 5884 3012 1743 1271 650 376 237 3 1900
35/3/40/100 24.2 5 1600
C 3502 2241 1556 1261 807 560 412 315 7.5 1400
40/3/40/50 29.2 3 2170
40/3/40/100 26.4 U 9338 4781 2767 2017 1032 597 376 252 5 1830
7.5 1160
C 5229 3346 2324 1882 1205 837 615 471 330

U 13944 7139 4132 3012 1524 892 562 376 235

25/4.5/40/50 27.9 C 1914 1225 850 689 441 306 225 3 1550
25/4.5/40/100 25.3 5 1310
U 5101 2611 1512 1102 564 325 205 7.5 1140
30/4.5/40/50 32.2 1860
30/4.5/40/100 29.7 C 3310 2118 1471 1191 763 529 389 302 3 1800
5 1370
35/4.5/40/50 41.5 U 8826 4518 2614 1906 975 564 355 238 7.5 2170
35/4.5/40/100 38.9 1830
C 5253 3362 2335 1891 1210 840 617 473 249 3 1600
40/4.5/40/50 46.1 5 2480
40/4.5/40/100 43.5 U 14007 7172 4150 3026 1548 895 564 378 236 7.5 2090
1830
50/4.5/40/50 53.5 3
50/4.5/40/100 48.5 3820
C 7843 5020 3486 2823 1807 1255 922 706 495 360 5 3220
2810
U 20916 10708 6198 4518 2313 1338 843 564 350 231 7.5

3

C 15318 9804 6808 5513 3529 2451 1800 1378 966 703 5

U 40851 20914 11910 8824 4517 2613 1646 1101 683 451 7.5

NB: Deeper bearer bars available Suggested Range

IMPORTANT NOTES

1. U, kg/m2, maximum allowable unfactored uniformly distributed loading for that stated span

2. C, kg/m, maximum allowable unfactored centre line load per metre

3. Load/Span Tables based on elastic deflections of span/200 or 10mm, whichever the lesser when subjected to the

specified unfactored load using Young’s modulus, 200x109 Pa

4. For serrated grating reduce tabulated allowable loads by 10% and maximum span per load category by 3.5%

5. All table loadings to be taken as nominal and should not be used as guaranteed values

6. Appropriate safety factors must be applied by the designer

7. Galvanising will increase stated mass per square metre by approximately 8 – 10%

8. Banding will increase mass by approximately 6% depending on grating configuration

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GRATEX® CS 7

GRATELOK® GL40® CARBON STEEL GRATING

GRATELOK® GL40® CARBON STEEL GRATING is The standard bearer bar pitch of 43mm provides
constructed by inserting round transverse bars effective spacing of 38.5mm (British Standard) or
through punched rectangular bearer bars, then 45.5mm. Extended spacing of bearer bars and
swaging (pressure deforming) the transverse bars transverse bars are available on request, viz.
on each side of bearer bars. This produces a GL40® 43/50, GL40® 43/100, GL40® 86/50 and
neat and rigid assembly with structural integrity. GL40® 86/100.
The range is designed in accordance with DIN,
BS and NAAMM standards. Standard panels are 2400mm by 1200mm. Special
sizes and customizing are available on request.
GRATELOK® GL40® CARBON STEEL GRATING is
available with serrated load bearing bars for Finishes include mill (standard), coated (painted or
improved skid resistance in especially slippery powder coated), bitumenised, and galvanized.
conditions, or with non-serrated bearer bars for
normal conditions. GRATELOK® GL40® CARBON STEEL GRATING offers
an economic grating solution for most environments.
Bearer bars are 3mm and 4.5mm thick, with
depths of 25mm, 30mm, 40mm, and 50mm.
Heavy duty bearer bars of 6.0mm wide by 75mm
or 100mm deep are available on request.

TRANSVERSE BAR

FIXING CLIP TRANSVERSE BAR PITCH

BEARER BAR

BEARER BAR PITCH

GRATELOK® GL40® UNSERRATED CARBON STEEL GRATING GRATELOK® GL40® SERRATED CARBON STEEL GRATING

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GRATEX® CS 8

GRATELOK® GL40® CARBON STEEL GRATING

GRATELOK® GL40® CARBON STEEL GRATING
LOAD/SPAN TABLES

LOAD BEARER BAR SPAN (mm)
C = kg/m
SIZE CODE APPROX MASS U = kg/m2 500 750 1000 1250 1500 1750 2000
kg/m2

TRANSVERSE BAR

6.0mm 7.6mm

25/4.5/43/50 25.2 28.4 C 1510 1000 756 432 295
25/4.5/43/100 23.0 24.8 U 6050 2685 1140 580 309

30/4.5/43/50 29.5 32.7 C 2180 1450 1096 870 518 369
30/4.5/43/100 27.3 29.1
U 8700 3870 1980 1015 535 338

40/4.5/43/50 38.0 41.2 C 3875 2500 1935 1548 1290 873 672
40/4.5/43/100 35.8 37.6
U 15485 6880 3870 2475 1270 800 528

50/4.5/43/50 49.6 C 6048 4032 3027 2415 2016 1728 1305
50/4.5/43/100 46.0
U 24190 10752 6048 3870 2688 1560 1025

FOR LOAD BEARING OF GL40® 86/50 AND GL40® 86/100, HALF OF THE ABOVE MASS LOADINGS APPLY

25/4.5/50/50 23.4 27.0 C 1294 857 648 370 253
25/4.5/50/100 21.2 23.4
U 5186 2301 977 497 265

30/4.5/50/50 27.2 30.8 C 1869 1243 934 746 444 316
30/4.5/50/100 25.0 27.2
U 7457 3317 1697 870 459 290

40/4.5/50/50 35.3 38.3 C 3321 2211 1659 1327 1106 748 576
40/4.5/50/100 33.1 34.7
U 13273 5897 3317 2121 1089 686 453

50/4.5/50/50 45.9 C 5184 3456 2595 2070 1728 1481 1119
50/4.5/50/100 42.3
U 20734 9216 5184 3317 2304 1337 879

FOR LOAD BEARING OF GL40® 100/50 AND GL40® 100/100, HALF OF THE ABOVE MASS LOADINGS APPLY

Suggested Range

IMPORTANT NOTES
1. U, kg/m2, maximum allowable unfactored uniformly distributed loading for that stated span
2. C, kg/m, maximum allowable unfactored centre line load per metre
3. Loads determined by maximum deflection of span/200 or 10mm
4. For serrated grating reduce tabulated allowable loads by 10% and maximum span per load category by 3.5%
5. All table loadings to be taken as nominal and should not be used as guaranteed values
6. Appropriate safety factors must be applied by the designer
7. Galvanising will increase stated mass per square metre by approximately 8 – 10%
8. Banding will increase mass by approximately 6% depending on grating

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GRATEX® SS 9

STAINLESS STEEL GRATING

GRATEX® SS STAINLESS STEEL GRATING Two bearer bar designs are offered:
conforms to ISO 9001:2008 standards.
NON-SERRATED: For general purpose use
It features inverted “pyramid” transverse bars
which are hand assembled with rigid bearer bars, SERRATED: Offering skid resistance in
then jig-welded to ensure dimensional stability.
wet or oily conditions
Standard panels are 1200mm x 2400mm.
Special sizes and customising (such as Standard bearer bar depths are 25mm, 27mm,
cut-outs, shaping, banding and complete 30mm, 40mm, 50mm, 60mm, 80mm, 90mm, and
structures) are available on request. 100mm. All are available in 3.0mm and 4.5mm
thicknesses. See Load/Span Tables.
GRATEX® SS STAINLESS STEEL GRATING is
available in 3CR12, 304 and 316 stainless steel. GRATEX® SS STAINLESS STEEL GRATING is offered
Finishes include pickled and passivated mill with non-standard bearer bar depths and pitches to
finish and electro-polished. suit abnormal load conditions.

FIXING CLIP With its longevity, high corrosion resistance, low
maintenance, strength and rigidity, GRATEX® SS
STAINLESS STEEL GRATING promises exceptional life
cycle cost performance.

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GRATEX® SS 10

STAINLESS STEEL GRATING

GRATEX® SS STAINLESS STEEL GRATING
LOAD/SPAN TABLES

CODE BEARER BAR DETAILS BEARER BAR SPAN mm Approx
THICK DEPTH PITCH Mass/m2
25/3/43 300 500 750 1000 1250 1500 1750 2000
27/3/43 mm mm mm kg
30/3/43 3 25 43 kg/m2 kg kg/m2 kg kg/m2 kg kg/m2 kg kg/m2 kg kg/m2 kg kg/m2 kg kg/m2 kg 21
40/3/43 3 27 43 22
50/3/43 3 30 43 6878 1198 2021 599 951 264 24
60/3/43 3 40 43 30
80/3/43 3 50 43 9358 1630 3235 815 1294 360 509 195 372 115 35
90/3/43 3 60 43 774 300 566 174 41
100/3/43 3 80 43 12378 2155 4474 1075 1970 545 1386 895 1339 519 264 111 52
3 90 43 3784 1675 2223 1159 968 335 58
3 100 43 25480 4440 9172 2220 3892 1365 5329 2545 3410 1830 1393 748 489 245 326 175 63
10109 4830 6470 3477 2409 1401 877 546 723 392
41313 7540 15574 3770 6485 2320 13069 6240 8364 4494 4493 2670 1897 1027 1355 732
16408 7835 10501 5644 5808 3448 3301 2261 2214 1828
59212 11455 21316 5725 9473 3525 7292 4330 4267 2928 3254 2364
5357 3676 4102 2968
112332 21735 40439 10865 17973 6685

145216 28095 52277 14045 23234 8645

182315 35275 65633 17535 29170 10850

25/4.5/45 4.5 25 45 9859 1797 3406 896 1245 396 498 213 352 128 352 172 655 352 439 264 27
27/4.5/45 4.5 27 45 13414 2445 4635 1220 1695 540 678 290 480 174 1041 507 1403 783 842 584 29
30/4.5/45 4.5 30 45 17741 3235 6985 1615 2580 820 1032 450 710 257 2305 1118 2174 1471 1578 1096 31
40/4.5/45 4.5 40 45 36521 6660 13147 3330 5579 2050 3048 1340 2040 782 4317 1247 4731 3239 3176 2744 39
50/4.5/45 4.5 50 45 59216 11310 21317 5655 9295 3480 5429 2510 3187 1738 6440 4003 6116 4186 4664 3548 48
60/4.5/45 4.5 60 45 84870 17185 30553 8590 13579 5280 7638 3810 4888 2741 8325 5177 7679 5256 5879 4456 56
80/4.5/45 4.5 80 45 161009 32600 57963 16300 25761 10030 14490 7240 9274 5216 10452 6497 72
90/4.5/45 4.5 90 45 208142 42145 74931 21070 33302 12860 18732 9360 11989 6743 80
100/4.5/45 4.5 100 45 261319 52915 904074 26450 41811 16280 23518 11750 15051 8464 88

IMPORTANT NOTES
1. The kg/m2 loadings are the maximum allowable uniformly distributed loadings for that span
2. The kg loadings are the maximum unfactored cente-line load per meter
3. The Load/Span tables are based on a maximum tensile stress of 165 MPa and elastic deflections of not more than span/200 or 10mm,

whichever is the lesser when subjected to the appropriate unfactored load
4. All the above to be taken as nominal and should not be used as guaranteed values

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GRATEX® FRP - M/P 11

FIBREGLASS GRATING - MOULDED & PULTRUDED

GRATEX® FRP FIBREGLASS GRATING - MOULDED n Vinyl Ester - for resistance to both acid
& PULTRUDED is a cost effective, lightweight and alkaline environments; and a flame
solution for walkways, platforms, gullies, trenches spread of 25 or less
and mezzanines.
n Phenolic - provides the ultimate fire resistance;
GRATEX® FRP FIBREGLASS GRATING - MOULDED designed to withstand prolonged fire exposure
& PULTRUDED has a high strength to weight without sustaining structural damage.
ratio, is corrosion resistant, and is slip resistant.
It exhibits low thermal conductivity, is GRATEX® FRP FIBREGLASS GRATING - MOULDED
non-magnetic and non-sparking. & PULTRUDED is easy to install, requiring only a
circular saw, jig saw or angle grinder.
Both grating types provide excellent impact and
loading characteristics. Standard moulded panels are 1220mm x 2440mm
and 1220mm x 3660mm. Special sizes and
GRATEX® FRP FIBREGLASS GRATING - MOULDED customising are available on request.
& PULTRUDED is available in three resin types:
TRANSVERSE TRANSVERSE BAR PITCH
n Isophthalic Polyester - moderate exposure BAR
to corrosive elements; and a low flame
spread rating of 25 or less

THICKNESS BEARER BAR LENGTH BEARER BAR
PITCH 38x38/50x50 23mm 15mm DEPTH 25/38mm
(SPAN) BEARER BAR
PITCH 38mm
DEPTH
25/38/50 PULTRUDED

25mm
or

38mm

PITCH

MOULDED 38mm

BEARER BAR PITCH
CROSS SECTION

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GRATEX® FRP - M/P 12

FIBREGLASS GRATING - MOULDED & PULTRUDED

PULTRUDED

FIXING CLIP

FRP L-CLAMP ASSEMBLY

FRP GRATING L-CLAMP ASSEMBLY

MOULDED

FRP M-CLAMP ASSEMBLY

FRP GRATING M-CLAMP ASSEMBLY

FRP C-CLAMP ASSEMBLY FRP GRATING C-CLAMP ASSEMBLY

GRATEX® FRP FIBREGLASS GRATING - MOULDED & PULTRUDED
LOAD/SPAN TABLES

MOULDED

CODE SPAN mm APPROX

DEPTH PITCH 300 400 500 600 750 900 1000 1250 Mass/m2
UC UC UC UC
U CUCUCUC 12.3
M25 25 38 x 38 3364 611 1325 356 715 244 448 163 395 202 458 241 336 225 408 306 14.6
M30 30 38 x 38 5813 1055 2289 615 1235 421 774 281 713 326 917 509 713 408 19.0
M38 38 38 x 38 7840 1467 3260 825 2202 682 1274 479 1529 713 21.5

M50 50 50 x 50 14271 2790 6610 1569 3862 1207 2747 1070

PULTRUDED

CODE BEARER BAR BEARER BAR SPAN mm APPROX
750 900 Mass/m2
DEPTH PITCH 300 400 500 600 1000 1200 1500 1750
UC UC UC UC UCUC UC UC UC UC 11
mm mm 17125 3160 7240 1835 4077 1815 2447 918 1264 581 754 428 550 347 326 245 16
43425 8155 18247 4587 16805 3364 6320 2345 3466 1519 2140 1193 1529 968 948 704 489 449 326 300
P2538 25 38

P3838 38 38

Suggested Range

IMPORTANT NOTES
1. U, kg/m2, maximum allowable unfactored uniformly distributed loading for that stated span
2. C, kg/m, maximum allowable unfactored centre line load per metre
3. Load/Span Tables based on elastic deflections of span/200 or 10mm, whichever the lesser when subjected to the specified unfactored load
4. All table loadings to be taken as nominal and should not be used as guaranteed values
5. Appropriate safety factors must be applied by the designer

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GRATEX® TC 13

TRENCH COVERS FLANGED

FRAMED

FRAMED FLANGED

Standard Lengths: 500, 1000, 2000, 2500, 3000, n Standard trench covers and frames are
4000, 5000, 6000. matched to ensure ease of installation
Note: special lengths on request
n Rigid angle frames provide for accurate form
Materials: Carbon Steel. Stainless Steel work and a uniform bearing surface
(3CR12/304/316)
n Frames with cast in lugs (at nominal 300mm
Finishes: Carbon Steel - Uncoated, Painted, centres) protect the trench edges and ensure
Bitumenised, Galvanised strong fixing into concrete surrounds

Stainless Steel - Mill, Pickled and Passivated n Trench Covers are fully banded for maximum
strength and heavy duty carrying capacity

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GRATEX® TC 14

TRENCH COVERS

GRATEX® TC TRENCH COVERS
LOAD/SPAN TABLES

TYPE LOAD kg/m SPAN mm APPROX. MASS
kg/m2
200 300 400 500
5730 2292 34
GTC1 - 30 x 4.5 C 10187 3820 2865 4074 49
GTC2 - 40 x 4.5 C 16333 6530 64
GTC3 - 50 x 4 (7x5) I C 47748 6791 5093 19089 90
GTC4 - 75 x 4 (12x6) I C
10886 8164

31824 23866

1. C, kg/m, maximum allowable unfactored centre line load per metre
2. Based on allowable tensile stress of 160Mpa and shear stress of 80Mpa

TYPICAL WHEEL FOOTPRINTS (Approximate: Only actual footprint to be used)

CONTACT ZONE (mm) VEHICLE
150 x 50 Forklift
120 x 120
200 x 200 Light Motor Vehicle
250 x 250 Light Delivery Vehicle
250 x 500 Medium Delivery Vehicle
Heavy Delivery Vehicle

IMPORTANT NOTES
1. Determine the maximum anticipated wheel load.
2. Apply a load factor appropriate for the duty.
3. Select an applicable wheel footprint.
4. Determine the required trench cover span.
5. Select the appropriate trench cover and frame from the load table, considering the factor for footprint versus centreline load.

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TREADEX® 15

STAIRTREADS AND STEPTREADS

MATERIALS Carbon Steel, Stainless Steel
(3CR12/304/316), Composites (FRP)

FINISHES Carbon Steel - Uncoated, Painted,
Bitumenised and Galvanised
Stainless Steel - Mill, Pickled and
Passivated

TYPES Carbon Steel - Grating and Solid
Stainless Steel - Grating and Solid
FRP - Grating and Solid

NOSINGS Patented Skid-Resistant,
Bent embossed Solid Plate
Dimple Punched Plate

SIDE PLATES 250mm Long for STAIRTREADS;
115mm Long for STEPTREADS
3mm and 4.5mm thick plate

SLOPES FOR CATLADDERS, STEPLADDERS, STAIRWAYS & RAMPS

MINO MAXO COMMENT

CATLADDERS 75 90

STEPLADDERS 65 75

STAIRWAYS

Steep 45 50 Avoid if possible

Steep 40 45

Gen Purpose 30 40

Public Buildings 22 30

RAMPS

Vehicles & Pedestrians 0 7 1:8

Forklifts 06 1:10

STAIRTREAD SIDE PLATE STEPTREAD SIDE PLATE

FRONT
FRONT

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TREADEX® 16

STAIRTREADS AND STEPTREADS

1.0m

CATLADDER
750-900

1.2m min clear 230 to
255mm

650-750 3.0m
max.

0.9m 25mm min.
100mm min.

STEPTREAD STEPTREAD
LADDER PERMISSABLE DIMENSIONS
650-750

STAIRTREAD
STAIRWAY
220-500

TREADEX® STAIRTREADS AND STEPTREADS
LOAD/SPAN TABLES

Side-plate STAIRTREAD STEPTREAD
thickness
Stair Length Bearer Bar Allowable Approx Length Bearer Bar Allowable Approx
Width mm centre Mass kg centre Mass kg
load kg 115 load kg
5.5 115 3.0
450 3 8.6 115 25 x 3.0 302 3.3
9.0 4.2
500 3 10.0 25 x 3.0 220
12.0
600 3 250 25 x 3.0 319 18.0 25 x 4.5 191

750 3 250 25 x 4.5 306

750 4.5 250 30 x 4.5 528

900 4.5 250 30 x 4.5 367

1000 4.5 250 30 x 4.5 297

1200 4.5 250 40 x 4.5 513

Note Standard sizes shown. Non-standard sizes are available at client’s discretion

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FLOOREX® 17

NON-SLIP SOLID FLOOR PLATE

GRATING WORLD FLOOREX® raised pattern FLOOREX® is available in Stainless Steel (3CR12,
non-slip solid floor plate bears the distinctive and 304, 316) and a range of Aluminium alloys to
registered “boomerang” design, versus the leaf or serve specific applications. Stainless Steel surface
lozenge patterns of other solid floor plate. finishes are No. 1, 2B, and shot blast.
In comparative tests, FLOOREX® demonstrated
superior co-efficient of friction (skid resistance) FLOOREX® advantages are non-slip, strong and
over regular checker plate in dry, wet and rigid, corrosion resistant, easy to clean, low
oily conditions. maintenance, eye-catching, and hygienic.

FLOOREX® is available in sheet sizes of 1250mm FLOOREX® applications include flooring (factories,
x 3000mm and 1250mm x 2500mm, as well as loading ramps, elevators, escalator approaches),
custom sizes. Nominal thicknesses are 1.6mm, stairtreads, kickplates, and protective fascias.
2.0mm, 2.5mm, 3.0mm, 4.0mm, and 4.5mm.

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FLOOREX® 18

NON-SLIP SOLID FLOOR PLATE

PROPERTIES 304 316 3CR12
Density kg/m3 (approximate) 7900 8000 7700
Modulus of Elasticity (E) Tensile Gpa 195 195 207
Thermal Conductivity @ 100oC w/moC 15.7 14.5 32.0
Coefficient Thermal Expansion @ 100oC 17.0 16.5 10.0
Recommended Max Service temp. oC 925 925 600
485 485 460
Tensile Strength Mpa 170 170 300
0.2% Proof Strength Mpa
40 40 20
Elongation % in 50mm 200 200 220
Hardness, Brinel

COMPARATIVE TEST RESULTS

Pattern Material Finish Co-efficient of Friction (u)

FLOOREX® Wellington Boot Shoe (leather Sole)
Checker Plate
Checker Plate Dry Wet Oiled Dry Wet Oiled

Std. 5 Rib 3CR12 No 1 0.55 0.49 0.43 0.67 0.62 0.53

Mild Steel Galvanised 0.51 0.36 0.30 0.48 0.44 0.20

Mild Steel Normal 0.49 0.34 0.26 0.44 0.44 0.17

Aluminium Normal 0.43 0.40 0.34 0.38 0.38 0.17

SIZES SHEET
Approx. Mass
Nominal Overall Std. Size m Approx, Mass Max. Width Max. Length
Thickness mm Height mm kg/m2 kg/std. size mm mm
2.5 x 1.25
2.0 3.6 16.0 2.5 x 1.25 50.0 1250 3000
2.5 x 1.25
3.0 4.6 24.0 75.0 1250 3000

4.5 6.1 36.0 112.5 1250 3000

Note: All gures to be taken as nominal and should not be used as guaranteed values.
Load Tables on request for oor plates supported and securely welded or bolted on all four sides.

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RAILEX® 19

HANDRAILING

The GRATING WORLD RAILEX® handrailing system Ball stanchions are floor (top) mount at 90
is available in stainless steel and carbon steel and degrees (B-TM90) and 45 degrees (B-TM45),
FRP (Composite). Stainless steel specifications are side-mount (B-SM90), and goose-neck mount
32mm handrail tube and stanchions of 38mm tube (B-GSM90).
or 50mm x 50mm angle; carbon steel Ball stanchions may be ordered with handrail
specifications are 34mm handrail tube and 42mm angles at up to 45 degrees.
stanchions
Angle stanchions are available in top-mounted
Tube connectors are available in 90 degree bends, and side-mounted versions.
45 degree bends, and as 90 degree and 45
degree closures (to connect end runs of upper Finishes are:
and lower handrails). Also available are wall plate
fittings, kink bends, and off-sets. Stainless Steel: Pickled & Passivated,
180-Grit Polished

Carbon Steel: .Mill finished, Painted, Powder
.coated, Galvanised

FRP: .Safety Yellow resin

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RAILEX® 20

HANDRAILING - STAINLESS STEEL

WALL PLATE FITTING KINK BEND

SB-TM90 SB-TM45 90O BEND 45O BEND
SB-SM90 SB-SM45
Standard Off-Set
250mm Minimum

OFF-SET
(RETURN)

SB-GSM90 SWAGED JOINTS 45O CLOSURE 90O CLOSURE
FOR BENDS AND

CLOSURES

SA-TM90 SA-TM45 SA-SM90 SA-SM45

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RAILEX® 21

HANDRAILING - CARBON STEEL

WALL PLATE FITTING KINK BEND

CB-TM90 CB-TM45

90O BEND 45O BEND

CB-SM90 CB-SM45 Standard Off-Set
250mm Minimum

OFF-SET
(RETURN)

CB-GSM90 SWAGED JOINTS 45O CLOSURE 90O CLOSURE
FOR BENDS AND

CLOSURES

CA-TM90 CA-TM45 CA-SM90 CA-SM45

* Carbon Steel Solid Forged stanchions available on request

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RAILEX® 22

HANDRAILING - FRP (COMPOSITE)

The GRATING WORLD RAILEX® FRP Handrail COMPONENTS AND COMPLETE ACCESS SYSTEMS
System is of 50mm diameter round and 50mm
square tube design, using internal fittings for all GRATING WORLD supplies FRP components and
connections. Joints are bonded and mechanically fabricates walkways, stairways, platforms, handrail
fastened using either metallic or non-metallic systems, caged ladders, fixed ladders, and support
hardware. systems that are specially designed and
engineered for corrosive environments according
RAILEX® FRP Handrails are fabricated from Safety to your specified workloads and configurations.
Yellow fiberglass pultrusions using a fire retardant Units are shop assembled and shipped in sections
resin with 50% glass content and a surface veil for to minimise field installation.
protection against ultraviolet damage. RAILEX® FRP
Handrails have a Class I fire retardance, with an
ASTM E-84 flame spread rating of 25 or less.

FRP (Composite) Advantages:

• High Strength • Lightweight

• Increased Life • Easily Assembled

• Low Maintenance • Dimensionally Stable

• Chemical Resistant • Corrosion Resistant

• R.F. Transparent • Fire Resistant

• Non-Conductive (Electrical)

• Non-Conductive (Non-Magnetic)

STRUCTURAL SECTIONS

GRATING WORLD also supplies a large range of
FRP Structural Sections. Call or email for details.

GRATING WORLD RAILEX® standard FRP handrailing
components are manufactured from general
purpose isophthalic polyester resin, with good
corrosion resistance.

Available on request are components of fire
retardant isophthalic polyester resin with a Class
1 fire retardance, with an ASTM E-84 flame spread
rating of 25 or less and low smoke generation.
Also available are components of fire retardant
vinylester resin. It is highly corrosion resistant and
capable of higher surface temperatures.

a world of grating solutions

a world of grating solutions

GRATING WORLD (Pty) Ltd

132 Terrace Road Sebenza Edenvale

P O Box 9748 Edenglen 1613 South Africa

Tel: +27 (0)11 452 1150/456 5250 Fax: +27 (0)11 452 2536

[email protected] www.gratingworld.co.za

Information is supplied upon the condition that persons will make their own determination as to its suitability for their purposes prior to use. 8/2013
Grating World (Pty) Ltd will not be responsible for damages of any nature whatsoever resulting from the use of or reliance upon information

from this publication or the products to which the information refers.