Clear Opening or Space

Wire or Rod Diameter

Plain Steel Weights lbs. Per Sq. ft.

Open Area %

Inches

MM

W&M Gauge

Inches

MM

1-1/4"

31.75

3/8

.375

9.53

5.69

59.2

5/16

.3125

7.94

4.08

64.0

1

.283

7.19

3.40

66.5

3

.250

6.35

2.70

69.4

4

.225

5.72

2.22

71.8

5

.207

5.26

1.90

73.6

6

.192

4.88

1.65

75.1

7

.177

4.50

1.42

76.7

8

.162

4.12

1.20

78.4

9

.148

3.76

1.01

79.9

10

.135

3.43

0.85

81.5

11

.120

3.05

0.68

83.2

Clear Opening or Space

Wire or Rod Diameter

Plain Steel Weights lbs. Per Sq. ft.

Open Area %

Inches

MM

W&M Gauge

Inches

MM

1-3/8"

34.93

3/8

.375

9.53

5.26

61.7

5/16

.3125

7.94

3.77

66.4

1

.283

7.19

3.14

68.8

3

.250

6.35

2.49

71.6

4

.225

5.72

2.04

73.9

5

.207

5.26

1.75

75.6

6

.192

4.88

1.52

77.0

7

.177

4.50

1.30

78.5

8

.162

4.12

1.10

80.0

9

.148

3.76

0.92

81.5

10

.135

3.43

0.78

82.9

11

.120

3.05

0.62

84.6

Clear Opening or Space

Wire or Rod Diameter

Plain Steel Weights lbs. Per Sq. ft.

Open Area %

Inches

MM

W&M Gauge

Inches

MM

1-1/2"

38.10

1/2

.500

12.70

8.25

56.3

7/16

.4375

11.11

6.48

59.9

3/8

.375

9.53

4.90

64.0

5/16

.3125

7.94

3.50

68.5

1

.283

7.19

2.91

70.8

3

.250

6.35

2.31

73.4

4

.225

5.72

1.89

75.6

5

.207

5.26

1.62

77.2

6

.192

4.88

1.40

78.6

7

.177

4.50

1.20

80.0

8

.162

4.12

1.02

81.5

9

.148

3.76

0.85

82.8

10

.135

3.43

0.72

84.2

11

.120

3.05

0.57

85.7

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Revised: 11/03/2011