SERVING THE CONCRETE INDUSTRY SINCE 1975

Numesh offers the most complete line of welded wire reinforcement products for the Canadian and American markets.

STRUCTURAL ENGINEERED WELDED WIRE REINFORCEMENT (WWR) MESH SOLUTION

Numesh has developed the expertise of doing the conversion of traditional rebar to structural Engi-neered Welded Wire Reinforcement (WWR) and we are ready to help you to save time and money!

For projects like fabrication of repetitive concrete products or important concrete slabs, the engi-neered structural WWR is your solution. The use of prefabricated WWR will speed-up your projects.

THE MANY BENEFITS OF THE STRUCTURAL WWR

There are several benefits over traditional rebar installation such as:

WWR is made from higher yield strength steel, up to 80 Ksi compared to regular rebar at 60 Ksi, offering the possibility to reduce the steel content by as much as 25%.

WWR is easier and faster to install with small-er crews compared to individual rebar placing and hand tying.

Loose large rebar replaced by smaller wire closer, welded together and equally-spaced offering better crack control, thus improving quality of concrete products.

WWR ensures proper positioning in concrete forms as required in the drawings with quick and easy quality control inspection.

WWR can be bent and rolled to fit your concrete projects.

Reduced time schedule, less labor, less steel content, less transportation and great quality concrete products.

Great solution if you experience shortage of labor.

Created in 1975, Numesh became the largest producer of Wire and Welded Wire Rein-forcement (WWR) mesh products used in a variety of concrete applications intended for the construction markets throughout Canada and USA: slabs on grade, structural slabs, concrete pipe, footings and foundations, architectural precast walls, stirrups, deck mesh, box culverts, utility concrete products, tunnel precast segments, bridge beams, jersey barriers, concrete road and mining.

Our combined capacity to produce and stock reinforcing mesh, in both sheets and rolls, in standard sizes or unique customer specifications, will guarantee exceptional service.

NUMESH IS SERVING THE INDUSTRY BY MANUFACTURING STRUCTURAL WELDED WIRE REINFORCEMENT (WWR) STEEL PRODUCTS, SUCH AS:

Building mesh Structural mesh Minemesh Pipemesh

Coils Straight and cut wire Curved and straight ladders Continuous high chair

Rolled and bent mesh Dowel Baskets Tie Bar Baskets

OUR SKILLSNumesh is recognized for its flexible manufacturing capacities, quality control and efficient service, as well as its technical expertise to find cost-effective solutions. We can fabricate and ship from coast to coast.

Numesh can fully meet all your performance criteria. We fabricate wire, construction mesh and engineered WWR as per the ASTM, AASHTO and the building code speci-fications. Numesh has its own quality control laboratory. Test procedures and results are available to customers.

Numesh is committed to contributing to the economy by creating jobs and purchasing locally, therefore making us a business partner of choice.

NUMESH PRODUCTSCOILS – CAGE MACHINE WIRE19 in. i.d x 36 in. o.d. x 24 in. h (standard) 24 in. i.d x 38 in. o.d. x 32 in. h

W1.4 to W31 (3.43 mm to 15.96 mm) D2.0 to D31 (4.05 mm to 15.96 mm)

3500 lb (standard) up to 4500 lb Strapped coils or on carriers

PIPE MESH2 in. C/C or 3 in. C/C wire spacing 2 ft. to 11.6 ft. W / up to 10000 lb Up to D18 longitudinal wire Up to D12.2 transversal wire Up to 3 wire flex Wind: regular or reverse

STRAIGHT & CUT WIRE Regular 1/4, 5/16, 3/8, 7/16, 1/2, 5/8 in. Other sizes available Cut to length Strapped bundles Deformed wire Pencil rod wire

CONTINUOUS HIGH CHAIRS2 in. to 8 in. high x 5 ft. long

ROLLED AND BENT WWR MESH Variable sizes of sheets and wires

Bend up to 180°

BUILDING MESH Sheets and rolls, black

or galvanized Standard gauge

10, 9, 8, 6, 4, 2, 0

TUNNEL SEGMENT REINFORCEMENT Straight and curved ladders Straight and curved bars

MINE MESH Regular 4 x 4 6/6 in. 5 ft. x 10 ft.,

black or galvanized, flush cut Other sizes available

STRUCTURAL WWR MESH Up to 10 ft. Width x up to 39 ft. Length in sheets

Smooth or deformed wire / Variable spacing / Rolled or bent / Custom made Min. D2.1 (MD13.3) Max. D31 at 4’’ (MD200) Compared to rebar, WWR will reduce oversteeling

Bending of the sheets upon request

Meets ASTM A1064

Standard

WIRE MESH SPECIFICATIONS

1. Specifications Covering WWR in Canada and USA

Designation: ASTM A1064 (formerly A82; A185; A496; A497)

Title: Steel wire and welded wire reinforcement, plain and deformed, for concrete

STRUCTURAL WWR CONFIGURATIONS

2. Industry method of designation style

Transversal: wire spacing wire size

4” x 6” D8 / W4 Imperial

102 x 152 MD 51.6 / MW 25.8 Metric

Longitudinal: wire spacing wire size

NUMESH STANDARD

CONSTRUCTION MESHSteel Area Weight

Imperial Metric in.2 / lin. ft lb / 100 sq2 ft Standard Sizedesignation designation mm2 / lin. m kg / m2 mesh sheets, roll*6x6 – 10/10 152x152 - MW 9.1 / MW 9.1 .029 21 4' x 8' • 5' x 10' 59.9 1.02 rolls 5' x 150', 6 x 100', 6' x 200'6x6 – 9/9 152x152 - MW 11.1 / MW 11.1 .035 25 4'x 8' • 8' x 12' • 8' x 20' 74.3 1.22 rolls 6' x 100' • 6' x 200'6x6 – 8/8 152x152- MW 13.3 / MW 13.3 .042 30 8' x 20' 88.7 1.46

6x6 – 6/6 152x152 - MW 18.7 / MW 18.7 .059 42 4' x 8' • 5' x 10' • 8' x 12' • 8' x 16' • 8' x 20' 124.5 2.05 rolls 6' x 100' • 6' x 200' • 5' x 150'*

6x6 – 4/4 152x152 - MW 25.7 / MW 25.7 .081 58 8' x 12' • 8' x 20'171.5 2.83

6x6 – 2/2 152x152 - MW 34.9 / MW 34.9 .110 78 8' x 12' • 8' x 20' 232.8 3.816x6 – 0/0 152x152 - MW 47.6 / MW47.6 .150 107 8' x 12' • 8' x 20' 317.3 5.22

4x4 – 6/6 102x102 - MW 18.7 / MW 18.7 .088 62 8' x 12' • 8' x 20' 186.8 3.02

4x4 – 4/4 102x102 - MW 25.7 / MW 25.7 .122 85 8' x 12' • 8' x 20' 257.2 4.148x8 – D8/D8 203x203 - MD 51.6 / MD 51.6 .122 85 8' x 14' 257.2 4.1412x12 – W3.4/W3.4 305x305 - MW 22.2 / MW 22.2 .035 25 8' x 20'* 73.0 1.2212x12 – W5.8/W5.8 305x305 - MW 37.4 / MW 37.4 .059 42 8' x 20' 123.0 2.0512x12 – W8/W8 305x305 - MW 51.6 / MW 51.6 .081 58 8' x 20'* 170.0 2.834x6 – W6.8/W6.1 102x152 - MW 43.9 / MW 39.4 .204 / .122 121 8' x 14'Road mesh 430.1 / 259.2 5.9

* UPON REQUEST

ALSO AVAILABLE IN GALVANISED SHEET 8'x 20'

Structural WWR sheets are available in custom configuration with variable wire spacing for both longitudinal and transverse wires sheet sizes up to 10' wide by up to 39' long.

Refer to WWR tables as a design aid in selecting areas of steel for various wire sizes and spacing.

STRUCTURAL MESH DESIGN AS PER YOUR SPECIFICATIONS : Fy = 485 MPa (70,000 psi), Fy = 500 MPa (72,500 psi), Fy = 515 MPa (75,000 psi), Fy = 550 MPa (80,000 psi)

TABLE OF EQUIVALENCES OF 10M AND 15M REBAR FOR FABRICATION OF WELDED WIRE REINFORCEMENT (WWR), IN D8, D11, D15.5 AND D31.

Custom-made structural welded mesh with variable spacing in both directions using cold-drawn wire:

Weight indicated is for one direction only. To obtain total wire mesh weight, add weight of transverse bars to weight of longitudinal bars.

Diameter of each wire mm and in.

Wire Area sq. mm

and sq. in.

Spacing of Bars (inches and mm)

2" 3" 4" 5" 6" 7" 8" 9" 10" 11" 12"

50.8 76.2 101.6 127.0 152.4 177.8 203.2 228.6 254.0 279.4 304.8

Area (mm2/lin. m) D8(8.1 mm)

51.6 mm2 1016 677 508 406 339 290 254 226 203 185 169Weight (kg/m2) 7.96 5.31 3.98 3.18 2.65 2.27 1.99 1.77 1.59 1.45 1.33

Area (in2/lin. ft.)5.1/16 in. 0.80 in.2 0.480 0.320 0.240 0.192 0.160 0.137 0.120 0.107 0.096 0.087 0.080

Weight (lb/100 ft2) 163 109 81.6 65.3 54.4 46.6 40.8 36.3 32.6 29.7 27.2

Area (mm2/lin. m) D11(9.5 mm)

70.9 mm2 1397 931 699 559 466 399 349 310 279 254 233Weight (kg/m2) 10.94 7.30 5.47 4.38 3.65 3.13 2.74 2.43 2.19 1.99 1.82

Area (in2/lin. ft.)3/8 in. 0.11 in.2 0.660 0.440 0.330 0.264 0.220 0.189 0.165 0.147 0.132 0.120 0.110

Weight (lb/100 ft2) 224 150 112 89.8 74.8 64.1 56.1 49.9 44.9 40.8 37.4

Area (mm2/lin. m) D15.5(10M or 11.3 mm)

100 mm2 1969 1312 984 787 656 562 492 437 394 358 328Weight (kg/m2) 15.42 10.28 7.71 6.17 5.14 4.41 3.86 3.43 3.08 2.80 2.57

Area (in2/lin. ft.)7/16 in. 0.16 in.2 0.930 0.620 0.465 0.372 0.310 0.266 0.233 0.207 0.186 0.169 0.155

Weight (lb/100 ft2) 316 211 158 126 105 90.3 79.1 70.3 63.2 57.5 52.7

Area (mm2/lin. m) D31(15M or 16.0 mm)

200 mm2 3937 2625 1969 1575 1312 1125 984 875 787 716 656Weight (kg/m2) 30.84 20.56 15.42 12.34 10.28 8.81 7.71 6.85 6.17 5.61 5.14

Area (in2/lin. ft.)5/8 in. 0.31 in.2 3937 2625 1969 1575 1312 1125 984 875 787 716 656

Weight (lb/100 ft2) 30.84 20.56 15.42 12.34 10.28 8.81 7.71 6.85 6.17 5.61 5.14

IMPERIAL UNITS / METRIC UNITSAREA - in.2 PER LINEAR FOOT / AREA - mm2 PER LINEAR METRE

WIRE NOMINAL NOMINAL NOMINAL CENTRE TO CENTRE SPACING (in.)SIZE* DIAM. AREA MASS CENTRE TO CENTRE SPACING (mm)

W/D in. in.2 lb/ft 2 in. 3 in. 4 in. 6 in. 8 in. 10 in. 12 in.MW/MD mm mm2 kg/m 51 mm 76 mm 102 mm 152 mm 203 mm 254 mm 305 mm

W/D31 0.628 (#5) 0.310 1.054 1.86 1.24 0.93 0.62 0.465 0.372 0.310MW/MD200 15.96 (15M) 200.00 1.568 3937 2625 1969 1312 984 787 656

W/D30 0.618 0.300 1.020 1.80 1.20 0.90 0.60 0.45 0.36 0.30MW/MD193.5 15.70 193.55 1.517 3810 2540 1905 1270 953 762 635

W/D28 0.597 0.280 0.952 1.68 1.12 0.84 0.56 0.42 0.336 0.28MW/MD180.6 15.17 180.64 1.416 3556 2371 1778 1185 889 711 593

W/D26 0.575 0.260 0.884 1.56 1.04 0.78 0.52 0.39 0.312 0.26MW/MD167.7 14.61 167.74 1.315 3302 2201 1651 1101 826 660 550

W/D24 0.553 0.240 0.816 1.44 0.96 0.72 0.48 0.36 0.288 0.24MW/MD154.8 14.04 154.84 1.214 3048 2032 1524 1016 762 610 508

W/D22 0.529 0.220 0.748 1.32 0.88 0.66 0.44 0.33 0.264 0.220MW/MD141.9 13.44 141.94 1.112 2794 1863 1397 931 699 559 466

W/D20 0.505 (#4) 0.200 0.680 1.20 0.80 0.60 0.40 0.30 0.24 0.20MW/MD129.0 12.82 129.03 1.011 2540 1693 1270 847 635 508 423

W/D18 0.479 0.180 0.612 1.08 0.72 0.54 0.36 0.27 0.216 0.18MW/MD116.1 12.16 116.13 0.910 2286 1524 1143 762 572 457 381

W/D16 0.451 0.160 0.544 0.96 0.64 0.48 0.32 0.24 0.192 0.16MW/MD103.2 11.46 103.23 0.809 2032 1355 1016 677 508 406 339

W/D15.5 0.444 0.155 0.527 0.93 0.62 0.465 0.31 0.233 0.186 0.155MW/MD100 11.28 (10M) 100.00 0.784 1960 1316 980 658 490 394 328

W/D14 0.422 0.140 0.476 0.84 0.56 0.42 0.28 0.21 0.168 0.14MW/MD90.3 10.72 90.32 0.708 1778 1185 889 593 445 356 296

W/D12 0.391 0.120 0.408 0.72 0.48 0.36 0.24 0.18 0.144 0.12MW/MD77.4 9.93 77.42 0.607 1524 1016 762 508 381 305 254

W/D11 0.374 (#3) 0.110 0.374 0.66 0.44 0.33 0.22 0.165 0.132 0.11MW/MD71.0 9.51 70.97 0.556 1397 931 699 466 349 279 233

W/D10.5 0.366 0.105 0.357 0.63 0.42 0.315 0.21 0.157 0.126 0.105MW/MD67.7 9.29 67.74 0.531 1334 889 667 445 332 267 222

W/D10 0.357 0.100 0.340 0.60 0.40 0.30 0.20 0.15 0.12 0.10MW/MD64.5 9.06 64.52 0.506 1270 847 635 423 318 254 212

W/D9.5 0.348 0.095 0.323 0.57 0.38 0.285 0.19 0.142 0.114 0.095MW/MD61.3 8.83 61.29 0.480 1207 804 603 402 301 241 201

W/D9 0.339 0.090 0.306 0.54 0.36 0.27 0.18 0.135 0.108 0.09MW/MD58.1 8.60 58.06 0.455 1143 762 572 381 286 229 191

W/D8.5 0.329 0.085 0.289 0.51 0.34 0.255 0.17 0.127 0.102 85MW/MD54.8 8.36 54.84 0.430 1080 720 540 360 269 216 180

W/D8 0.319 0.080 0.272 0.48 0.32 0.24 0.16 0.12 0.096 0.08MW/MD51.6 8.11 51.61 0.405 1016 677 508 339 254 203 169

W/D7.5 0.309 0.075 0.255 0.45 0.30 0.225 0.15 0.112 0.09 0.075MW/MD48.4 7.85 48.39 0.379 953 635 476 318 237 191 159

W/D7 0.299 0.070 0.238 0.42 0.28 0.21 0.14 0.105 0.084 0.07MW/MD45.2 7.58 45.16 0.354 889 593 445 296 222 178 148

W/D6.5 0.288 0.065 0.221 0.39 0.26 0.195 0.13 0.097 0.078 0.065MW/MD41.9 7.31 41.94 0.329 826 550 413 275 205 165 138

W/D6 0.276 0.060 0.204 0.36 0.24 0.18 0.12 0.09 0.072 0.06MW/MD38.7 7.02 38.71 0.304 762 508 381 254 191 152 127

W/D5.5 0.265 0.055 0.187 0.33 0.22 0.165 0.11 0.082 0.066 0.055MW/MD35.5 6.72 35.48 0.278 699 466 349 233 174 140 116

W/D5 0.252 0.050 0.170 0.30 0.20 0.15 0.10 0.075 0.06 0.05MW/MD32.3 6.41 32.26 0.253 635 423 318 212 159 127 106

W/D4.5 0.239 0.045 0.153 0.27 0.18 0.135 0.09 0.067 0.054 0.045MW/MD29.0 6.08 29.03 0.228 572 381 286 191 142 114 95.3

W/D4 (4ga) 0.226 0.040 0.136 0.24 0.16 0.12 0.08 0.06 0.048 0.04MW/MD25.8 5.73 25.81 0.203 508 339 254 169 127 102 84.7

W/D3.5 0.211 0.035 0.119 0.21 0.14 0.105 0.07 0.052 0.042 0.035MW/MD22.6 5.36 22.58 0.177 445 296 222 148 110 88.9 74.1

W/D3 0.195 0.030 0.102 0.18 0.12 0.09 0.06 0.045 0.036 0.03MW/MD19.2 4.96 19.35 0.152 381 254 191 127 95.3 76.2 63.5

W/D2.9 (6ga) 0.192 0.029 0.098 0.174 0.116 0.087 0.058 0.043 0.035 0.029MW/MD18.7 4.88 18.68 0.146 368 245 184 123 91 74.1 61.4

W/D2.5 (7ga) 0.177 0.025 0.084 0.15 0.10 0.075 0.05 0.037 0.03 0.025MW/MD15.9 4.50 15.87 0.124 317 212 159 106 78.3 63.5 52.9

W/D2.1 (8ga) 0.162 0.021 0.070 0.124 0.082 0.062 0.041 0.031 0.025 0.021MW/MD13.5 4.11 13.30 0.104 262 175 131 87 65.6 52.4 43.6

W/D1.7 (9ga) 0.148 0.017 0.059 0.104 0.069 0.052 0.035 0.026 0.021 0.017MW/MD11.0 3.77 11.14 0.087 219 146 110 73 54.8 43.9 36.6

W/D1.4 (10ga) 0.135 0.014 0.049 0.086 0.057 0.043 0.029 0.021 0.017 0.014MW/MD9.2 3.43 9.23 0.072 182 121 91 61 45.4 36.3 30.3

SECTIONAL AREAS OF

WELDED WIRE REINFORCEMENT (WWR)

Important: Numesh disclaims any liability for the use of the information and data contained herein.

*WIRE SIZE:

Imperial wire sizes are designated by their sectional area in hundreths of a square inch. Ex.: for W8,Area = 0.08 in.2

Metric wire sizes are designated by their sectional area in mm2.

Ex.: for MW51.6, Area = 51.6 mm2

“W” denotes smooth wire ex.: W18 “D” denotes deformed wire ex.: D18 “M” denotes metric ex.: MW116.1 or MD116.1

REBAR SIZES:

Canadian Sizes

10M: A = 100 mm2 = 0.155 in.2

15M: A = 200 mm2 = 0.31 in.2

20M: A = 300 mm2 = 0.465 in.2

25M: A = 500 mm2 = 0.775 in.2

30M: A = 700 mm2 = 1.085 in.2

U.S. Sizes

#3: A = 0.11 in.2 = 71 mm2

#4: A = 0.20 in.2 = 129 mm2

#5: A = 0.31 in.2 = 199 mm2

#6: A = 0.44 in.2 = 284 mm2

#7: A = 0.60 in.2 = 387 mm2

#8: A = 0.79 in.2 = 510 mm2

MESH CONVERSION:

Rebar Fy = 400 MPa Deformed Mesh Fy = 485 MPa, available up to 550 MPa

Example: Area reduction when converting Rebar Steel Area to Deformed Mesh, Fy = 500 MPa

For a saving of 20% of steel content Multiply by x 400/500 = 0.80

Minimum Mechanical Properties for WWR

Type of WWR

Minimum TensileStrength

Minimum YieldStrength Fy

Minimum Weld Shear Strength

Smooth Wire Mesh

515 MPa (75 000 psi)

450 MPa (65 000 psi)

241 x area* mm2 = Newtons (35 000 x area* in.2 = lb.force)

Deformed Structural Wire Mesh

550 MPa (80 000 psi)

485 MPa (70 000 psi)

241 x area* mm2 = Newtons (35 000 x area* in.2 = lb.force)

* Area of the biggest wire. The smallest wire must have 40% x area of the biggest wire.

CONVERSION FACTORS:

1 in. = 25.4 mm

1 ft = 0.3048 m

1 in.2 = 645.2 mm2

1 in.2/lin. ft = 2116.7 mm2/lin. m

1 lb/100 ft2 = 0.0488 kg /m2

1 lb = 0.4536 kg

1000 psi = 6.895 MPa

(Diam. inch)2 x 2.673 = weight lb/lin. ft

A = 0.7854 d2

(Area inch)2 x 3.4 = weight lb/lin. ft

In yellow are the most popular sizes to design WWR.

BR-

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