CATALOGUE

PRODUCT CATALOGUE MESH
REINFORCING
PRODUCT CATALOGUE
MESH
S&T025
JAN 2013

INDEX
Introduction 1
NZ Standards relating to Steel Wire Fabric 2
Sheet Sizes 3 & 4
Standard Meshes, Wire Size, Pitch, Mass and Volume 5
Lappages 6
Lap Examples 7
Lap Charts 8
Bar to Mesh Conversions 9
Conversion Chart 10
Mass per m2 for Wire Sizes 11
Area per Metre Width for Wire Sizes 12
Wire/Steel Charts 13 & 14
Mechanical Limitations of Fabrication 15

INTRODUCTION
This Handbook has been produced for the Civil and Structural Engineering professions as an information resource on
the nature of steels, welding processes and design criteria for welded fabric. It will also aid designers in assessing
and calculating steel wire fabric options for specific constructional requirements.
The standard listing of products, sizes, applications and additional related services available will also be relevant to
the Construction Industry in general.
Whilst every effort has been made to ensure the accuracy of any information, advice or recommendations it may offer,
no liability or responsibility of any kind is accepted in this respect.
1

NEW ZEALAND STANDARDS
The Standards Association of New Zealand controls the preparation and publishing of all Standard Specifications and
Codes of Practice in New Zealand.
The New Zealand Standards mentioned in this section, control the mechanical properties of the steel wire used for
concrete reinforcement, the fabrication of the welded fabric and the methods of application in respect to concrete
reinforcement.
Further information can be obtained from:
Standards Association of New Zealand, Private Bag Wellington
NZ3421:1975
Specification for Hard Drawn Mild Steel Wire for Concrete Reinforcement
The Standard requires the following tensile properties:-
NOMINAL DIAMETER (mm)
MINIMUM 0.2% PROOF TENSILE STRENGTH (MPa)
STRESS (MPa)
Maximum
Minimum
Up to and including 3.15 485 575 855
Over 3.15 485 575 775
NZ3422:1975
Specification for Welded Fabric of Drawn Steel Wire for Concrete Reinforcement
This Standard requires a minimum average Weld Shear load “Where the longitudinal wire diameter is in the range
11mm to 3.15mm and the longitudinal to transverse wire diameter differential does not exceed 3mm, the minimum
average shear value in Newtons shall be not less than 240 multiplied by the cross-sectional area of the longitudinal
wire in square millimetres”, and dictates requirements of “The distance between centres of two adjacent wires shall
not vary by more than 7.5 percent from the exact pitch”. “If fabric is required to be cut to specific dimensions, the
tolerance shall be as follows”:
5 Metres and under +25mm
Over 5 metres +0.5%
NZS3101:2006
Code of Practice for The Design of Concrete Structures
This Standard lays out the development length and lap-splice requirements for plain wire fabric and deformed wire
fabric, and is the basis of any pertinent calculations or recommendations given in this Handbook.
2

SHEET SIZES
Standard production sheet sizes have been designed to offer the user an economical unit for construction purposes.
The Dimensions offered relate to NZ Standard lap requirements’ fabrication limitations and also to on-site handling
practicalities.
Sheets can be fabricated to specific dimensional requirements if quantities are sufficient to make production runs
viable. However, the following are offered as stock product.
The dimensions shown are overall sheet sizes and include the end and side overhangs.
Standard HRC overhangs are nominally 20mm either side. The end overhang is nominally half the pitch (i.e. on a 66
Mesh the end overhang is 150
2 = 75mm).
3

DEFORMED MESH
668 Equivalent:
D84 5.6 dia deformed wire at 300 centres
Overall size 2290 x 5100
Effective area after lapping 10.08m 2
Utilises double selvedge wires
665 Equivalent:
D147 7.5 dia deformed wire at 300 centres
Overall size 2400 x 6900
Effective area after lapping 13.86m 2
Utilises equal overhangs
Deformed Meshes are designed to exactly match the
traditional “66” meshes for strength while minimising
wastage of materials in the lap area.
The D numbers are taken from the nominal sectional
area of steel per metre width presented by the
welded wire fabric.
664 Equivalent:
D188 6.0 dia deformed wire at 150 centres
Overall size 2400 x 6900
Effective area after lapping 13.86m 2
Utilises asymmetric overhangs
663 Equivalent:
D212 6.3 dia deformed wire at 150 centres
Overall size 2400 x 6900
Effective area after lapping 13.86m 2
Utilises asymmetric overhangs
662 Equivalent:
D264 7.1 dia deformed wire at 150 centres
Overall size 2400 x 6900
Effective area after lapping 13.86m 2
Utilises asymmetric overhangs
661 Equivalent:
D295 7.5 dia deformed wire at 150 centres
Overall size 2400 x 6900
Effective area after lapping 13.86m 2
Utilises asymmetric overhangs
4

STANDARD SHEET SIZES
HRC SHEET
TYPE
WIRE SIZE
(mm)
PITCH
(mm)
STEEL AREA
per METRE
WIDTH
(mm 2 )
SHEET SIZE
(mm x mm)
NET COVER
AFTER
LAPPING
(m 2 )
MASS
per m 2
SHIPING
VOLUME
per 100m 2
661 Ecomomy 7.5 150 294.5 2440 x 6150 4.728 4.728 1.38
663 Economy 6.3 150 207.8 2440 x 6150 12.76 3.337 0.92
665 Economy 5.3 150 147.1 2440 x 6150 12.76 2.362 0.78
668 Economy 4.0 150 83.8 2440 x 6150 12.76 1.344 0.59
661 Large 7.5 150 294.5 1990 x 4650 7.52 4.752 1.38
662 Large 7.1 150 263.9 1990 x 4650 7.52 4.258 1.30
663 Large 6.3 150 207.8 1990 x 4650 7.52 3.353 0.92
664 Large 6.0 150 188.5 1990 x 4650 7.52 3.042 0.88
665 Large 5.3 150 147.1 1990 x 4650 7.52 2.373 0.78
668 Large 4.0 150 83.8 1990 x 4650 7.52 1.351 0.59
333 Large 6.3 75 415.6 1990 x 4650 7.66 6.582 1.16
335 Large 5.3 75 294.2 1990 x 4650 7.96 4.659 0.97
338 Large 4.0 75 167.6 1990 x 4650 7.96 2.652 0.59
D84 5.6 Def 300 84.8 2290 x 5100 10.08 1.210 1.25
D147 7.5 Def 300 147.3 2400 x 6900 13.86 2.126 1.60
D188 6.0 Def 150 188.5 2400 x 6900 13.86 2.715 1.61
D212 6.3 Def 150 207.8 2400 x 6900 13.86 3.029 1.61
D264 7.1 Def 150 263.9 2400 x 6900 13.86 3.812 1.60
D295 7.5 Def 150 294.5 2400 x 6900 13.86 4.251 1.61
5

LAPPAGES
Lap-splice requirements for Welded Wire Mesh are set by the NZ Standards Association in NZS3101:2006 and are
subject to a number of variables.
The following charts have been calculated for the convenience of the user. It is believed that most design situations
will be satisfied; however, no responsibility for design accuracy can be assumed and designers should refer back to
NZS3101:2006 for substantiating calculations.
The design assumptions made for these charts are listed below.
Notice should be taken of the NZ Standards Association’s differential of requirements for plain wire fabric and
deformed wire fabric.
Similar lap-splice requirements are not acceptable, and current sheet designs are tailored to suit NZ Standards
requirements.
For this reason, deformed wire mesh lappages are calculated as per deformed bar.
Assumptions as listed are referenced in terms of NZS3101 Nomenclature.
fy = 485 MPa Yield strength of steel
F’ = 25 MPa Compressive strength of concrete
Asr/Asp = 1.0 Ratio of steel required to steel provided
C = 20mm + db/2 Concrete over
The following charts list “overall” lap-splice requirements of Welded wire fabric in as much as they show the required
overlap of mesh from the perimeter of the sheet.
6

LAP DIAGRAMS
7

LAPPING
8

LAPPAGES
CONVERSIONS
MESH COMMENTS SIDE LAP END
661
662
663
664
665
668
D84
D147
D188
D212
D264
D295
84XP
147XP
2 Wires plus
50mm for
encasement
plus overhangs
Overhangs to
reach edge wire
2 Squares of
double edge
wires plus
overhangs
240 350
300 300
190 225
NOTE: If sheets are cut and overhang or edge
wire detail is lost, laps must revert to:
2 Wires plus 50mm in the lap zone
• In some circumstances such as building slabs,
reinforcing bar can be substituted with
welded mesh.
• There are substantial savings in labour and time
that can be gained by using welded mesh instead
of tied re-bar.
• The quick reference conversion chart on page 10,
makes allowance for the differences in design
strengths of 500 grade and 300 grade re-bar
and the 485 proof stress of hard drawn
reinforcing wire.
• Eg: from the chart, H10 @ 300 = 662 = D264
Which means 10 diameter 500 grade bar at
300mm centres can be substituted with 662 mesh
or D264 construction mesh.
9

QUICK REFERENCE
CONVERSION CHART
10

MASS PER SQUARE METRE FOR WIRES
IN ONE DIRECTION AT VARIOUS SPACINGS
DIA
Kg PER
LINEAL
WIRE SPACINGS – kgs
50mm 75mm 100mm 150mm 200mm 225mm 250mm 300mm
11.20 .773387 15.4677 10.3118 7.7339 5.1559 3.8669 3.4373 3.0935 2.5780
10.00 .616539 12.3308 8.2205 6.1654 4.1103 3.0827 2.7402 2.4662 2.0551
9.50 .556427 11.1285 7.4190 5.5643 3.7095 2.7821 2.4730 2.2257 1.8548
9.00 .499397 9.9876 6.6586 4.9940 3.3293 2.4970 2.2257 1.9976 1.6647
8.00 .394585 7.8917 5.2611 3.9459 2.6306 1.9729 1.7537 1.5783 1.3153
7.50 .346804 6.9361 4.6241 3.4680 2.3120 1.7340 1.5413 1.3872 1.1560
7.10 .310797 6.2159 4.1440 3.1080 2.0720 1.5540 1.3813 1.2432 1.0360
6.30 .244704 4.8941 3.2627 2.4470 1.6314 1.2235 1.0876 0.9788 0.8157
6.00 .221954 4.4391 2.9594 2.2195 1.4797 1.1098 0.9865 0.8878 0.7398
5.30 .173186 3.4637 2.3091 1.7319 1.1546 0,8659 0.7697 0.6927 0.5773
5.00 .154135 3.0827 2.0551 1.5414 1.0276 0.7707 0.6850 0.6165 0.5138
4.00 .098646 1.9729 1.3153 0.9865 0.6576 0.4932 0.4384 0.3946 0.3288
3.15 .061176 1.2235 0.8157 0.6118 0.4078 0.3059 0.2719 0.2447 0.2039
11

SECTIONAL AREA PER METRE WIDTH
DIA
SECTIONAL
AREA mm
sq
WIRE SPACINGS – mm sq
50mm 75mm 100mm 150mm 200mm 225mm 250mm 300mm
11.20 98.5206 1970.41 1313.61 985.21 656.80 492.60 437.87 394.08 328.40
10.00 78.5400 1570.80 1047.20 785.40 523.60 392.70 349.07 314.16 261.80
9.50 70.8824 1417.65 945.10 708.82 472.55 354.41 315.03 283.53 236.27
9.00 63.6174 1272.35 848.23 636.17 424.12 318.09 282.74 254.47 212.06
8.00 50.2626 1005.31 670.21 502.66 335.10 251.33 223.40 201.06 167.55
7.50 44.1788 883.58 589.05 441.79 294.53 220.89 196.35 176.72 147.26
7.10 39.5920 791.84 527.89 395.92 263.95 197.96 175.96 158.37 131.97
6.30 31.1725 623.45 415.63 311.73 207.82 155.86 138.54 124.69 103.91
6.00 28.2744 565.49 376.99 282.74 188.50 141.37 125.66 113.10 94.25
5.30 22.0619 441.24 294.16 220.62 147.08 110.31 98.05 88.25 73.54
5.00 19.6350 392.70 261.80 196.35 130.90 98.18 87.27 78.54 65.45
4.00 12.5664 251.33 167.55 125.66 83.78 62.83 55.85 50.27 41.89
3.15 7.7931 155.86 103.91 77.93 51.95 38.97 34.64 31.17 25.98
12

WIRE CHART
DIAMETER mm
NEAREST
ISWG
CROSS SECTIONAL
AREA mm2
kg PER METRE
METRES PER kg
11.20 5/0 98.52 0.7734 1.2930
10.00 4/0 78.54 .6165 1.6620
9.50 3/0 70.88 .5564 1.7972
9.00 2/0 63.62 .4994 2.0024
8.00 1/0 50.27 .3946 2.5343
7.50 1 44.18 .3468 2.8835
7.10 2 39.59 .3108 3.2175
6.30 3 31.17 .2447 4.0866
6.00 4 28.27 .2220 4.5054
5.30 5 22.06 .1732 5.7741
5.00 6 19.63 .1541 6.4878
4.50 7 15.90 .1249 8.0096
4.00 8 12.57 .0986 10.1373
3.55 9 9.90 .0777 12.8702
3.15 10 7.79 .0612 16.3463
2.80 11 6.16 .0483 20.6881
2.50 12 4.91 .0385 25.9511
2.24 13 3.94 .0309 32.3258
2.00 14 3.14 0.0247 40.4582
1.80 15 2.54 .0200 50.0601
1.60 16 2.01 .0158 63.3593
1.40 17 1.54 .0121 82.7541
1.25 18 1.23 .0096 103.810
1.00 19 0.79 .0062 162.206
0.90 20 .064 .0050 200.240
13

STEEL BAR CHART
DIAMETER mm
CROSS SECTIONAL
AREA mm 2
MASS PER UNIT
LENGTH kg/m
LENGTH PER 1000kg
6.0 28.27 0.222 4505
10.0 78.54 0.617 1622
12.0 113.10 0.888 1126
16.0 201.06 1.578 633
20.0 314.16 2.466 405
24.0 452.39 3.551 281
28.0 615.75 4.834 206
32.0 804.25 6.313 158
40.0 1256.64 9.865 101
14

MECHANICAL LIMITATIONS
Welded Wire Fabric is produced from a series of longitudinal and transverse steel wires, resistance welded at all
intersections.
The manufacturing process can be varied to accommodate various style changes and dimensions. (However,
consideration should be given to the complexity of the change). The manufacturing variables are listed in the general
order of time involved, starting with the most time consuming.
(a) Longitudinal wire spacing (b) Width of sheet (c) Side and end overhangs (d) Transverse wire spacing (e) Transverse
wire size (f) Longitudinal wire size (g) Length of sheet.
The more difficult machine changes require greater quantities per item in order to offset the additional production
time required. Generally, it is more economical to order a few basic sheet sizes and styles than to specify many
variations in the sheet.
The following maximum dimensions are given as a guide but may be subject to regional variations due to differences
in plant.
Maximum overall width 2700mm
Maximum overall length 7000mm
Maximum number of longitudinal wires 36
15

HURRICANE
REINFORCING MESH TESTING
New Zealand Standards for reinforcing meshes require
it to be tested in specified batch lots before it can
be claimed to comply with those Standards. Hence
Hurricane maintains two laboratories in New Zealand
specifically to test manufactured reinforcing meshes
for compliance and to provide test certification of
those results. Hurricane Wire Products is in the unique
position of being able to offer proof of compliance with
all reinforcing meshes supplied.
The following tests form the basis of the information
required to provide the designer with confidence in the
performance of the mesh at work.
WELD SHEAR
Weld Shear is a critical test for reinforcing meshes as the welded
crosswire is often an integral part in the mechanics of lappage and
provides the major proportion of the anchorage in concrete. Both
NZS 3422 and AS/NZS 4671 requirements must be met to satisfy
Hurricanes internal controls.
DEFORMATION TEST
The surface geometry of the reinforcing mesh plays a significant role
in increasing the bond with the concrete. The relationship of the ribbed
projections to the nominal diameter is critical and material tested must
meet the requirements of AS/NZS 4671.
MASS CALCULATION
With the proliferation of deformed meshes the measurement of wire
diameters became impractical; hence the measurement of mass now
provides the evidence for design confidence. AS/NZS 4671 provides
cross-sectional areal for nominal diameters and tolerances of 4.5% plus
or minus on mass per metre results.
TENSILE TEST
The hard drawn nature of reinforcing wire produces high tensile
strengths with low ductility. This prevents the observation of a yield
phenomenon and hence the 0.2% proof stress is determined by
test as detailed in both NZS 3422 and AS/NZS 4671. The minimum
requirement remains at 485MPa.
SET DOWN
Set Down of the welded wires is not a test required by any Standards
Authority. Rather it is an empirical measure from the experience gained
from 60 years of manufacture by New Zealand’s first mesh producer
and is an effective indicator of the quality of the welding process.

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