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Wire Mesh Specification

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Mesh
S.W.G.
DIAMETER OF WIRE
SIZE OF OPENING
Approx. Percentage Open Area
Inches
Milli-Meters
Inches
Milli-Meters
2
12
.104
2.6
.396
10.06
62.7
13
.092
2.3
.408
10.36
66.6
14
.080
2.0
.420
10.67
70.6
15
.072
1.8
.428
10.87
73.3
16
.064
1.6
.436
11.07
76.0
17
.056
1.4
.444
11.28
78.8
18
.048
1.2
.452
11.46
81.7
Mesh
S.W.G.
DIAMETER OF WIRE
SIZE OF OPENING
Approx. Percentage Open Area
Inches
Milli-Meters
Inches
Milli-Meters
3
12
.104
2.642
.2293
5.8243
47.3
13
.092
2.337
.2413
6.1293
52.4
14
.080
2.032
.2533
6.4343
57.7
15
.072
1.829
.2613
6.6373
61.4
16
.064
1.626
.2693
6.8403
65.3
17
.056
1.422
.2773
7.0443
69.2
18
.048
1.219
.2853
7.2473
73.3
Mesh
S.W.G.
DIAMETER OF WIRE
SIZE OF OPENING
Approx. Percentage Open Area
Inches
Milli-Meters
Inches
Milli-Meters
4
14
.080
2.032
.1700
4.3178
46.2
15
.072
1.829
.1780
4.5208
50.7
16
.064
1.626
.1860
4.7238
55.4
17
.056
1.422
.1940
4.9278
60.2
18
.048
1.219
.2020
5.1308
65.3
19
.040
1.016
.2100
5.3338
70.6
20
.036
0.914
.2140
5.4358
73.3
Mesh
S.W.G.
DIAMETER OF WIRE
SIZE OF OPENING
Approx. Percentage Open Area
Inches
Milli-Meters
Inches
Milli-Meters
5
15
.072
1.829
.1280
3.2508
41.0
16
.064
1.626
.1360
3.4538
46.2
17
.056
1.422
.1440
3.6578
51.8
18
.048
1.219
.1520
3.8608
57.8
19
.040
1.016
.1600
4.0638
64.0
20
.036
0.914
.1640
4.1658
67.2
21
.032
0.813
.1680
4.2668
70.6


Mesh
S.W.G.
DIAMETER OF WIRE
SIZE OF OPENING
Approx. Percentage Open Area
Inches
Milli-Meters
Inches
Milli-Meters
6
16
.064
1.626
.1027
2.6072
38.0
17
.056
1.422
.1107
2.8112
44.1
18
.048
1.219
.1187
3.0142
50.7
19
.040
1.016
.1267
3.2172
57.8
20
.036
0.914
.1307
3.3192
61.5
21
.032
0.813
.1347
3.4202
65.3
 
22
.028
0.711
.1387
3.5222
69.3
23
.024
0.610
.1427
3.6263
73.3
24
.022
0.559
.1447
3.6742
75.4
Mesh
S.W.G.
DIAMETER OF WIRE
SIZE OF OPENING
Approx. Percentage Open Area
Inches
Milli-Meters
Inches
Milli-Meters
7
16
.064
1.626
.0789
2.0024
30.5
17
.056
1.422
.0869
2.2064
37.0
18
.048
1.219
.0949
2.4094
44.1
19
.040
1.016
.1029
2.6124
51.9
20
.036
0.914
.1069
2.7144
56.0
21
.032
0.813
.1109
2.8154
60.3
22
.028
0.711
.1149
2.9174
64.7
23
.024
0.610
.1189
3.0184
69.3
24
.022
0.559
.1209
3.0694
71.6


Mesh
S.W.G.
DIAMETER OF WIRE
SIZE OF OPENING
Approx. Percentage Open Area
Inches
Milli-Meters
Inches
Milli-Meters
8
18
.048
1.219
.0770
1.9559
37.9
19
.040
1.016
.0850
2.1589
46.2
20
.036
0.914
.0890
2.2609
50.7
21
.032
0.813
.0930
2.3619
55.4
22
.028
0.711
.0970
2.4639
60.2
23
.024
0.610
.1010
2.5649
65.3
24
.022
0.559
.1030
2.6159
67.9
25
.020
0.508
.1050
2.6669
70.6
26
.018
0.457
.1070
2.7179
73.3
27
.0164
0.4166
.1090
2.7583
76.0
Mesh
S.W.G.
DIAMETER OF WIRE
SIZE OF OPENING
Approx. Percentage Open Area
Inches
Milli-Meters
Inches
Milli-Meters
9
18
.048
1.219
.0631
1.6031
32.2
19
.040
1.016
.0711
1.8061
40.8
20
.036
0.914
.0751
1.9081
45.6
21
.032
0.813
.0791
2.0091
50.5
22
.028
0.711
.0831
2.1111
55.8
23
.024
0.610
.0871
2.2121
61.3
24
.022
0.559
.0891
2.2631
64.2
25
.020
0.508
.0911
2.3141
67.1
26
.018
0.457
.0931
2.3651
70.1
27
.0164
0.4166
.0951
2.4055
73.1
28
.0148
0.3759
.0961
2.4462
74.6


Mesh
S.W.G.
DIAMETER OF WIRE
SIZE OF OPENING
Approx. Percentage Open Area
Inches
Milli-Meters
Inches
Milli-Meters
10
20
.036
0.914
.0640
1.6259
41.0
21
.032
0.813
.0680
1.7269
46.2
22
.028
0.711
.0720
1.8289
51.8
23
.024
0.610
.0760
1.9299
57.8
24
.022
0.559
.0780
1.9809
60.8
25
.020
0.508
.0800
2.0319
64.0
26
.018
0.457
.0820
2.0829
67.2
27
.0164
0.4166
.0836
2.1233
69.9
28
.0148
0.3759
.0852
2.1640
72.6
Mesh
S.W.G.
DIAMETER OF WIRE
SIZE OF OPENING
Approx. Percentage Open Area
Inches
Milli-Meters
Inches
Milli-Meters
12
20
.036
0.914
.0473
1.2026
32.2
21
.032
0.813
.0513
1.3036
37.9
22
.028
0.711
.0553
1.4056
44.0
23
.024
0.610
.0593
1.5066
50.6
24
.022
0.559
.0613
1.5576
54.1
25
.020
0.508
.0633
1.6086
57.7
26
.018
0.457
.0653
1.6596
61.4
27
.0164
0.4166
.0669
1.7000
64.4
28
.0148
0.3759
.0685
1.7407
67.6
29
.0136
0.3454
.0697
1.7712
70.0
30
.0124
0.3150
.0709
1.8016
72.4


Mesh
S.W.G.
DIAMETER OF WIRE
SIZE OF OPENING
Approx. Percentage Open Area
Inches
Milli-Meters
Inches
Milli-Meters
14
22
.028
.711
.0434
1.1032
36.9
23
.024
.610
.0474
1.2042
44.0
24
.022
.559
.0494
1.2552
47.8
25
.020
.508
.0514
1.3062
51.8
26
.018
.457
.0534
1.3572
55.9
27
.0164
.4166
.0550
1.3976
59.3
28
.0148
.3759
.0566
1.4383
62.8
29
.0136
.3454
.0578
1.4688
65.5
30
.0124
.3150
.0590
1.4992
68.2
31
.0116
.2946
.0598
1.5196
70.1
32
.0108
.2743
.0606
1.5399
72.0
Mesh
S.W.G.
DIAMETER OF WIRE
SIZE OF OPENING
Approx. Percentage Open Area
Inches
Milli-Meters
Inches
Milli-Meters
16
24
.022
.559
.0405
1.0285
42.0
25
.020
.508
.0425
1.0795
46.2
 
26
.018
.457
.0445
1.1395
50.7
27
.0164
.4166
.0461
1.1709
54.4
28
.0148
.3759
.0477
1.2116
58.3
29
.0136
.3454
.0489
1.2421
61.2
30
.0124
.3150
.0501
1.2725
64.3
31
.0116
.2946
.0509
1.2929
66.3
32
.0108
.2743
.0517
1.3132
66.4
33
.0100
.2540
.0525
1.3335
70.6


Mesh
S.W.G.
DIAMETER OF WIRE
SIZE OF OPENING
Approx. Percentage Open Area
Inches
Milli-Meters
Inches
Milli-Meters
18
22
.028
.711
.0275
.7000
24.5
23
.024
.610
.0315
.0810
32.1
24
.022
.559
.0335
.8520
36.4
25
.020
.508
.0355
.9030
40.8
26
.018
.457
.0375
.9540
45.6
27
.0164
.4166
.0391
.9944
49.5
28
.0148
.3759
.0407
1.0351
53.7
29
.0136
.3454
.0419
1.0656
56.9
30
.0124
.3150
.0431
1.0960
60.2
31
.0116
.2946
.0440
1.1164
62.7
32
.0108
.2743
.0447
1.1367
64.7
33
.0100
.2540
.0455
1.1570
67.1
Mesh
S.W.G.
DIAMETER OF WIRE
SIZE OF OPENING
Approx. Percentage Open Area
Inches
Milli-Meters
Inches
Milli-Meters
20
24
.022
.559
.0280
.7110
31.4
25
.020
.508
.0300
.7520
36.0
26
.018
.457
.0320
.8130
41.0
27
.0164
.4166
.0336
.8534
45.1
28
.0148
.3759
.0352
.8941
49.6
 
29
.0136
.3454
.0364
.9246
53.0
30
.0124
.3150
.0376
.9550
56.5
31
.0116
.2946
.0384
.9754
59.0
32
.0108
.2743
.0392
.9957
61.5
33
.0100
.2540
.0400
1.0610
64.0


Mesh
S.W.G.
DIAMETER OF WIRE
SIZE OF OPENING
Approx. Percentage Open Area
Inches
Milli-Meters
Inches
Milli-Meters
22
24
.022
.559
.0235
.5955
26.7
25
.020
.508
.0255
.6455
31.5
26
.018
.457
.0275
.6975
36.6
27
.0164
.4166
.0291
.7379
41.0
28
.0148
.3759
.0307
.7786
45.6
29
.0136
.3454
.0319
.8091
49.2
30
.0124
.3150
.0331
.8395
53.0
31
.0116
.2946
.0338
.8599
55.3
32
.0108
.2743
.0347
.8802
58.3
33
.0100
.2540
.0355
.9005
61.0
Mesh
S.W.G.
DIAMETER OF WIRE
SIZE OF OPENING
Approx. Percentage Open Area
Inches
Milli-Meters
Inches
Milli-Meters
24
24
.022
.559
.0196
.4993
22.1
25
.020
.508
.0216
.5503
26.9
26
.018
.457
.0236
.6013
32.1
27
.0164
.4166
.0252
.6417
36.6
28
.0148
.3759
.0268
.6824
41.4
29
.0136
.3454
.0280
.7129
45.2
30
.0124
.3150
.0292
.7433
49.1
31
.0116
.2946
.0300
.7637
51.8
32
.0108
.2743
.0308
.7840
54.6
33
.0100
.2540
.0316
.8043
57.5


Mesh
S.W.G.
DIAMETER OF WIRE
SIZE OF OPENING
Approx. Percentage Open Area
Inches
Milli-Meters
Inches
Milli-Meters
26
28
.0148
.3759
.0237
.6010
38.0
29
.0136
.3454
.0249
.6315
41.9
30
.0124
.3150
.0261
.6619
46.0
31
.0116
.2946
.0269
.6823
48.9
32
.0108
.2743
.0277
.7026
51.9
33
.0100
.2540
.0285
.7229
54.9
34
.0092
.2337
.0293
.7432
58.0
Mesh
S.W.G.
DIAMETER OF WIRE
SIZE OF OPENING
Approx. Percentage Open Area
Inches
Milli-Meters
Inches
Milli-Meters
28
28
.0148
.3759
.0209
.5312
34.2
29
.0136
.3454
.0221
.5617
38.3
 
30
.0124
.3150
.0233
.5921
42.6
31
.0116
.2946
.0241
.6125
45.5
32
.0108
.2743
.0249
.6328
48.6
33
.0100
.2540
.0257
.6531
51.8
 
34
.0092
.2337
.0265
.6734
55.1


Mesh
S.W.G.
DIAMETER OF WIRE
SIZE OF OPENING
Approx. Percentage Open Area
Inches
Milli-Meters
Inches
Milli-Meters
30
30
.0124
.3150
.0209
.5316
39.3
31
.0116
.2946
.0217
.5520
42.2
32
.0108
.2743
.0225
.5723
45.6
33
.0100
.2540
.0233
.5926
48.9
34
.0092
.2337
.0241
.6129
52.3
35
.0084
.2134
.0249
.6332
55.8
36
.0076
.1930
.0257
.6536
59.4
Mesh
S.W.G.
DIAMETER OF WIRE
SIZE OF OPENING
Approx. Percentage Open Area
Inches
Milli-Meters
Inches
Milli-Meters
32
32
.0108
.2743
.0204
.5194
42.6
33
.0100
.2540
.0212
.5397
46.0
34
.0092
.2337
.0220
.5600
49.6
35
.0084
.2134
.0228
.5803
53.2
36
.0076
.1930
.0236
.6607
57.0


Mesh
S.W.G.
DIAMETER OF WIRE
SIZE OF OPENING
Approx. Percentage Open Area
Inches
Milli-Meters
Inches
Milli-Meters
30
33
.0100
.2540
.0178
.4515
41.1
34
.0092
.2337
.0186
.4718
44.8
35
.0084
.2134
.0194
.4921
48.8
 
36
.0076
.1930
.0202
.5125
52.9
Mesh
S.W.G.
DIAMETER OF WIRE
SIZE OF OPENING
Approx. Percentage Open Area
Inches
Milli-Meters
Inches
Milli-Meters
40
32
.0108
.2743
.0142
.3607
32.3
33
.0100
.2540
.0150
.3810
36.0
34
.0092
.2337
.0158
.4013
39.9
35
.0084
.2134
.0166
.4216
44.1
36
.0076
.1930
.0174
.4420
48.4
37
.0068
.1727
.0182
.4623
53.0
 
38
.0060
.1524
.0190
.4826
57.8
39
.0052
.1321
.0198
.5029
62.7


Mesh
S.W.G.
DIAMETER OF WIRE
SIZE OF OPENING
Approx. Percentage Open Area
Inches
Milli-Meters
Inches
Milli-Meters
50
33
.0100
.2540
.0100
.2540
25.0
34
.0092
.2337
.0108
.2743
29.2
35
.0084
.2134
.0116
.2946
33.6
36
.0076
.1930
.0124
.3150
38.4
37
.0068
.1727
.0132
.3352
43.6
38
.0060
.1524
.0140
.3556
49.0
39
.0052
.1321
.0198
.5029
62.7
Mesh
S.W.G.
DIAMETER OF WIRE
SIZE OF OPENING
Approx. Percentage Open Area
Inches
Milli-Meters
Inches
Milli-Meters
60
35
.0084
.2134
.0083
.2099
24.8
36
.0076
.1930
.0091
.2303
29.8
37
.0068
.1727
.0099
.2506
35.3
38
.0060
.1524
.0107
.2709
41.2
39
.0052
.1321
.0115
.2912
47.6
40
.0046
.1219
.0119
.3014
51.0


Mesh
S.W.G.
DIAMETER OF WIRE
SIZE OF OPENING
Approx. Percentage Open Area
Inches
Milli-Meters
Inches
Milli-Meters
80
37
.0068
.1727
.0057
.1448
20.8
38
.0060
.1524
.0065
.1651
27.0
39
.0052
.1321
.0073
.1854
34.1
40
.0048
.1219
.0077
.1956
37.9
41
.0044
.1118
.0081
.2057
42.0
Mesh
S.W.G.
DIAMETER OF WIRE
SIZE OF OPENING
Approx. Percentage Open Area
Inches
Milli-Meters
Inches
Milli-Meters
90
39
.0052
.1321
.0059
.1501
28.2
40
.0048
.1219
.0063
.1603
32.1
41
.0044
.1118
.0067
.1704
36.4
42
.0040
.1016
.0069
.1806
38.6
43
.0036
.0914
.0075
.1908
45.6


Mesh
S.W.G.
DIAMETER OF WIRE
SIZE OF OPENING
Approx. Percentage Open Area
Inches
Milli-Meters
Inches
Milli-Meters
100
39
.0052
.1321
.0048
.1219
23.0
40
.0048
.1219
.0052
.1321
27.0
41
.0044
.1118
.0056
.1422
31.4
42
.0040
.1016
.0060
.1524
36.0
43
.0036
.0914
.0064
.1626
41.0
Mesh
S.W.G.
DIAMETER OF WIRE
SIZE OF OPENING
Approx. Percentage Open Area
Inches
Milli-Meters
Inches
Milli-Meters
110
41
.0044
.1118
.0047
.1173
26.7
42
.0040
.1016
.0051
.1293
31.5
43
.0036
.0914
.0055
.1395
36.6
44
.0032
.0813
.0059
.1496
42.1
 
45
.0028
.0711
.0063
.1598
48.0


Mesh
S.W.G.
DIAMETER OF WIRE
SIZE OF OPENING
Approx. Percentage Open Area
Inches
Milli-Meters
Inches
Milli-Meters
120
42
.0040
.1016
.0043
.1101
26.6
43
.0036
.0914
.0047
.1203
31.8
44
.0032
.0813
.0051
.1304
37.5
 
45
.0028
.0711
.0055
.1406
43.6
Mesh
S.W.G.
DIAMETER OF WIRE
SIZE OF OPENING
Approx. Percentage Open Area
Inches
Milli-Meters
Inches
Milli-Meters
130
42
.0040
.1016
.0037
.0938
23.1
43
.0036
.0914
.0041
.1040
28.4
44
.0032
.0813
.0045
.1141
34.2
45
.0028
.0711
.0049
.1243
40.6


Mesh
S.W.G.
DIAMETER OF WIRE
SIZE OF OPENING
Approx. Percentage Open Area
Inches
Milli-Meters
Inches
Milli-Meters
140
43
.0036
.0914
.0035
.0900
24.0
44
.0032
.0813
.0039
.1001
29.8
45
.0028
.0711
.0043
.1103
36.2
46
.0024
.0610
.0047
.1204
43.3
Mesh
S.W.G.
DIAMETER OF WIRE
SIZE OF OPENING
Approx. Percentage Open Area
Inches
Milli-Meters
Inches
Milli-Meters
160
45
.0028
.0711
.0034
.0876
29.6
46
.0024
.0610
.0038
.0977
37.0
47
.0020
.0508
.0042
.1079
45.2


Mesh
S.W.G.
DIAMETER OF WIRE
SIZE OF OPENING
Approx. Percentage Open Area
Inches
Milli-Meters
Inches
Milli-Meters
180
46
.0024
.0610
.0032
.0801
33.0
47
.0020
.0508
.0036
.0903
37.0
Mesh
S.W.G.
DIAMETER OF WIRE
SIZE OF OPENING
Approx. Percentage Open Area
Inches
Milli-Meters
Inches
Milli-Meters
200
47
.0020
.0508
.0030
.0762
42.2
48
.0016
.0406
.0034
.0864
46.2


Mesh
S.W.G.
DIAMETER OF WIRE
SIZE OF OPENING
Approx. Percentage Open Area
Inches
Milli-Meters
Inches
Milli-Meters
250
48
.0016
.0406
.0024
.0610
36.0
49
.0012
.0305
.0028
.0711
49.0
Mesh
S.W.G.
DIAMETER OF WIRE
SIZE OF OPENING
Approx. Percentage Open Area
Inches
Milli-Meters
Inches
Milli-Meters
300
48
.0016
.0406
.0017
.0432
26.5
49
.0012
.0305
.0021
.0542
40.5


Mesh
S.W.G.
DIAMETER OF WIRE
SIZE OF OPENING
Approx. Percentage Open Area
Inches
Milli-Meters
Inches
Milli-Meters
350
49
.0012
.0305
.0017
.0421
34.4
50
.0010
.0254
.0019
.0472
43.0
Mesh
S.W.G.
DIAMETER OF WIRE
SIZE OF OPENING
Approx. Percentage Open Area
Inches
Milli-Meters
Inches
Milli-Meters
400
49
.0012
.0305
.0013
.0330
27.0
50
.0010
.0254
.0015
.0381
36.0
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